Radio link failure prediction method and apparatus, terminal and storage medium

Abstract

The present application relates to the technical field of communications, and discloses a radio link failure prediction method and apparatus, a terminal, and a storage medium. The radio link failure prediction method in embodiments of the present application comprises: a terminal determines prediction information of a target cell; and on the basis of the prediction information, or measurement information and the prediction information, the terminal predicts whether a radio link failure will occur in the target cell, wherein the measurement information comprises at least one of a cell signal quality measurement result, a first synchronization indication, and a first out-of-synchronization indication; the prediction information comprises at least one of a cell signal quality prediction result, a second synchronization indication, and a second out-of-synchronization indication; the first synchronization indication and the first out-of-synchronization indication are obtained on the basis of the cell signal quality measurement result; and the second synchronization indication and the second out-of-synchronization indication are obtained on the basis of the cell signal quality prediction result.

Description

Radio link failure prediction method and device, terminal and storage medium

[0001] Cross-reference to Related Applications

[0002] The present application claims priority to the Chinese patent application No. 202411302056.2, filed on September 18, 2024, and entitled "Radio link failure prediction method and device, terminal and storage medium", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present application belongs to the field of communication technology, and specifically relates to a radio link failure prediction method, device, terminal and storage medium. BACKGROUND

[0004] Radio link failure (RLF) is a model representing problems in radio link quality in a communication system, which affects the stability of services and the service experience of users. The radio link failure can be determined based on the signal quality measured by the physical layer and the timer or counter configured by the network. After determining the radio link failure, the terminal needs to perform RRC (Radio Resource Control) reestablishment to reconnect to the network.

[0005] After the actual occurrence of the radio link failure, the terminal performs RRC reestablishment, which causes service interruption, increases the latency of services and reduces the stability of services, and affects the user experience. SUMMARY

[0006] The embodiments of the present application provide a radio link failure prediction method, device, terminal and storage medium, which can predict the radio link failure to assist the network side device in configuring the terminal to switch to other cells in advance, or assist the terminal in performing RRC reestablishment or cell reselection in advance, reduce the service interruption time, improve the stability of services, and thus improve the user experience.

[0007] In a first aspect, a radio link failure prediction method is provided, comprising:

[0008] The terminal determines prediction information of a target cell;

[0009] The terminal predicts whether a radio link failure will occur in the target cell according to the prediction information, or measurement information and the prediction information;

[0010] The measurement information includes at least one of a cell signal quality measurement result, a first synchronization indication, and a first out-of-sync indication.

[0011] The prediction information comprises at least one of a cell signal quality prediction result, a second synchronization indication, and a second out-of-synchronization indication.

[0012] The first synchronization indication and the first out-of-synchronization indication are obtained based on the cell signal quality measurement result.

[0013] The second synchronization indication and the second out-of-synchronization indication are obtained based on the cell signal quality prediction result.

[0014] In a second aspect, a wireless link failure prediction apparatus is provided, comprising:

[0015] a processing module configured to determine prediction information of a target cell;

[0016] The processing module is further configured to predict whether a wireless link failure will occur in the target cell according to the prediction information, or measurement information and the prediction information.

[0017] The measurement information comprises at least one of a cell signal quality measurement result, a first synchronization indication, and a first out-of-synchronization indication.

[0018] The prediction information comprises at least one of a cell signal quality prediction result, a second synchronization indication, and a second out-of-synchronization indication.

[0019] The first synchronization indication and the first out-of-synchronization indication are obtained based on the cell signal quality measurement result.

[0020] The second synchronization indication and the second out-of-synchronization indication are obtained based on the cell signal quality prediction result.

[0021] In a third aspect, a wireless link failure prediction apparatus is provided, which is configured to perform the steps of the method according to the first aspect.

[0022] In a fourth aspect, a terminal is provided, which comprises a processor and a memory, the memory storing programs or instructions executable on the processor, and the programs or instructions, when executed by the processor, implement the steps of the method according to the first aspect.

[0023] In a fifth aspect, a terminal is provided, which comprises a processor and a communication interface, wherein the processor is configured to run programs or instructions to implement the steps of the method according to the first aspect, and the communication interface is configured to be coupled with the processor.

[0024] In a sixth aspect, a readable storage medium is provided, which stores programs or instructions, and the programs or instructions, when executed by a processor, implement the steps of the method according to the first aspect.

[0025] In a seventh aspect, a chip is provided, which includes a processor and a communication interface, the communication interface and the processor are coupled, the processor is configured to run programs or instructions to implement the steps of the method in the first aspect.

[0026] In an eighth aspect, a computer program / program product is provided, which is stored in a storage medium, and is executed by at least one processor to implement the steps of the method in the first aspect.

[0027] In the embodiments of the present application, the terminal determines the prediction information of the target cell, and then predicts whether the radio link failure will occur in the target cell according to the prediction information, or the measurement information and the prediction information. The radio link failure is predicted, so that when it is predicted that the radio link failure will occur, the network side device is reported, so that the network side device configures the terminal to switch to other cells in advance, or the terminal performs RRC reestablishment in advance, instead of performing switching configuration or RRC reestablishment and the like when the radio link failure actually occurs. The interruption time of the service can be reduced, the stability of the service can be improved, and the user experience can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] FIG. 1 is a block diagram of a wireless communication system to which embodiments of the present application can be applied;

[0029] FIG. 2 is a schematic diagram of a cell-level measurement prediction in the related art;

[0030] FIG. 3 is a schematic diagram of a beam-level measurement prediction in the related art;

[0031] FIG. 4 is an implementation flowchart of a radio link failure prediction method in an embodiment of the present application;

[0032] FIG. 5 is a schematic diagram of a radio link failure prediction example in an embodiment of the present application;

[0033] FIG. 6 is a schematic diagram of a relationship between a prediction window and a first time length in an embodiment of the present application;

[0034] FIG. 7 is another schematic diagram of a relationship between a prediction window and a first time length in an embodiment of the present application;

[0035] FIG. 8 is still another schematic diagram of a relationship between a prediction window and a first time length in an embodiment of the present application;

[0036] FIG. 9 is another schematic diagram of a radio link failure prediction example in an embodiment of the present application;

[0037] FIG. 10 is a structural schematic diagram of a radio link failure prediction apparatus in an embodiment of the present application;

[0038] FIG. 11 is a structural schematic diagram of a communication device in an embodiment of the present application;

[0039] FIG. 12 is a schematic diagram of a structure of a terminal according to an embodiment of the present application. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0041] The terms “first”, “second”, and the like in the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by “first”, “second” are generally a category and do not limit the number of objects, for example, the first object can be one or more. In addition, “or” in the present application means at least one of the connected objects. For example, the protection scope of “A or B” at least covers three schemes, namely, scheme one: including A and not including B; scheme two: including B and not including A; scheme three: including A and including B. In addition, the terms “A and / or B”, “at least one of A and B”, “at least one of A or B” also at least cover the above three schemes, respectively. The character “ / ” generally represents that the objects before and after are in an “or” relationship.

[0042] The term “indication” in the present application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). The direct indication can be understood as that the sender explicitly informs the receiver of specific information, operations to be performed or requested results, etc. in the indication sent by the sender. The indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or judges and determines the operations to be performed or the requested results according to the judgment result.

[0043] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems. th

[0044] ​FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a notebook computer, a Personal Digital Assistant (PDA), a palmtop computer, a netbook, an Ultra-mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR) device, a Virtual Reality (VR) device, a robot, a wearable device, a flight vehicle, a Vehicle User Equipment (VUE), a shipboard device, a Pedestrian User Equipment (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game console, a Personal Computer (PC), a kiosk, or a self-service machine. The wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, etc.), a smart wristband, smart clothes, etc. The vehicle-mounted device can also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. The access network device can also be referred to as a Radio Access Network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a Wireless Local Area Network (WLAN) Access Point (AP), or a Wireless Fidelity (WiFi) node, etc.The base station can be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a relay station (RBS), a serving base station (SBS), a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home Node B (HNB), a home evolved Node B, a transmit / receive point (TRP), or some other suitable terminology in the art, so long as 5 30 the context of the term permits. The base station is not limited to a particular technology, and the same technical effects can be achieved regardless of the specific terminology used. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0045] For the convenience of understanding, the related technologies and concepts involved in the embodiments of the present application are introduced first.

[0046] I. Artificial Intelligence (AI) unit / AI model

[0047] At present, AI has been widely applied in various fields. AI unit / AI model has various implementation ways, such as neural network, decision tree, support vector machine, Bayesian classifier, etc.

[0048] In the embodiments of the present application, the AI unit / AI model can also be referred to as an AI unit, an AI model, an AI module, a machine learning (ML) model, an ML unit, an ML module, an AI structure, an AI function, an AI feature, a neural network, a neural network function, a neural network function, etc., or the AI unit / AI model can also refer to a processing unit or a processing module capable of implementing specific algorithms, formulas, processing flows, capabilities, etc. related to AI, or the AI unit / AI model can be a processing method, algorithm, function, feature, module or unit for a specific data set, or the AI unit / AI model can be a processing method, algorithm, function, feature, module or unit running on an AI / ML related hardware such as a Graphics Processing Unit (GPU), a Neural Processing Unit (NPU), a Tensor Processing Unit (TPU) or an Application-Specific Integrated Circuit (ASIC), and the embodiments of the present application do not make specific limitations in this regard.

[0049] II. AI-based mobility enhancement

[0050] The AI-based mobility enhancement mainly relies on the AI unit / AI model to obtain the RRM related measurement prediction, measurement event prediction and radio link failure prediction, etc. to assist the network side device to enhance the accuracy of the judgment on the terminal mobility based on the above predictions, so as to reduce the service interruption caused by the terminal movement, and better achieve the load balancing of the network.

[0051] For the RRM related measurement prediction, it can include cell-level measurement prediction and beam-level measurement prediction. The cell-level measurement prediction is shown in FIG. 2, various input parameters are input into the AI model, and the AI model can output the measurement prediction value of the cell. The beam-level measurement prediction is shown in FIG. 3, various input parameters are input into the AI model, and the AI model can output the measurement prediction value of the beam.

[0052] III. Radio link failure

[0053] A terminal in RRC_CONNECTED state performs Radio Link Monitoring (RLM) based on the measurement of reference signals and the network configured reference signal quality thresholds.

[0054] The terminal can declare radio link failure when the following conditions are met:

[0055] 1) Physical layer indicates that there is a problem with the radio link, such as the T310 timer started after N310 out-of-sync indications expires;

[0056] 2) When T310 is running, a measurement report is triggered, and the measurement identifier corresponding to the measurement report is configured to time out the timer T312;

[0057] 3) The Media Access Control (MAC) layer random access procedure fails;

[0058] 4) The maximum number of retransmissions of the Radio Link Control (RLC) layer reaches the upper limit, causing the radio link control layer to fail.

[0059] When radio link failure occurs, the terminal remains in RRC_CONNECTED state and selects a suitable cell to trigger the RRC reestablishment procedure; if the terminal does not find a suitable cell before T311 expires, the terminal enters RRC_IDLE state.

[0060] For the case of poor downlink quality leading to radio link failure, the terminal's decision behavior is as follows:

[0061] If the terminal is configured with multiple downlink bandwidth parts (Bandwidth Part, BWP) (DL BWP) for the serving cell, the terminal uses the reference signal corresponding to the resource index provided in the RRC parameter, such as RadioLinkMonitoringRS, for the active DL BWP to perform radio link monitoring; or if no RadioLinkMonitoringRS is provided for the active DL BWP, the reference signal provided for the active transmission configuration indication (TCI) state is used for the physical downlink control channel (PDCCH) reception in the control resource set (CORESET) on the active DL BWP.

[0062] According to the threshold (Qout and Qin) configured by the RRC parameter, such as rlmInSyncOutOfSyncThreshold, the physical layer (PHY) of the terminal evaluates the radio link quality once per indication period. The terminal determines the indication period as the maximum of the shortest period of the radio link monitoring resources and 10 ms. If the terminal is operating in a discontinuous reception (DRX) mode, the terminal determines the indication period as the maximum of the shortest period of the radio link monitoring resources and the DRX cycle. When the radio link quality is worse than the threshold Qout for all resources in the set of resources used for radio link monitoring, the physical layer of the terminal indicates out-of-sync (or in-sync) to the RRC layer in the frame in which the radio link quality is evaluated. When the radio link quality is better than the threshold Qin for any resource in the set of resources used for radio link monitoring, the physical layer of the terminal indicates in-sync to the RRC layer in the frame in which the radio link quality is evaluated.

[0063] The threshold Qout is defined as the level at which the downlink radio link cannot be reliably received, corresponding to an out-of-sync block error rate (BLER) (BLERout), such as 10%. The threshold Qin is defined as the level at which the downlink radio link quality can be reliably received, corresponding to an in-sync block error rate (BLERin), such as 2%.

[0064] When the RRC layer of the terminal receives N310 consecutive "out-of-sync or out-of-sync" indications from the physical layer for a special cell (SpCell) while none of T300, T301, T304, T311, T316 and T319 are running, the RRC layer of the terminal shall start timer T310 for the corresponding SpCell.

[0065] When T310 is running, if the RRC layer of the terminal receives N311 consecutive "in-sync" indications from the physical layer for the SpCell, the RRC layer of the terminal shall stop timer T310 for the corresponding SpCell.

[0066] Wherein, N310: represents the maximum number of consecutive out-of-sync indications received, after which the start of timer T310 is triggered;

[0067] N311: represents the maximum number of consecutive in-sync indications received required to stop timer T310;

[0068] T300: started after the terminal sends an RRC connection request message, and stopped when an RRC setup or RRC reject message is received, or cell reselection is stopped, or the upper layer aborts connection establishment;

[0069] T301: start after the terminal sends an RRC reestablishment request message, stop when an RRC reestablishment message or an RRC setup message is received, or when the selected cell becomes unsuitable;

[0070] T304: start when the terminal receives an RRC reconfiguration message including synchronization reconfiguration or when conditional reconfiguration is performed, stop after successful completion of random access on the corresponding SpCell;

[0071] T310: start when the terminal detects an SpCell physical layer problem, stop when N311 consecutive synchronization indications are received from the lower layer of the SpCell, or when an RRC reconfiguration message with synchronization reconfiguration of the cell group is received, or when the reconfiguration radio link failure timer and the constant are received;

[0072] T311: start when the terminal initiates an RRC connection reestablishment procedure, stop after selecting a suitable NR cell or a cell using other RAT (Radio Access Technology).

[0073] T316: start when the terminal transmits a master cell group (MCG) failure information message, stop when an RRC release message is received, or when an RRC reconfiguration message with synchronization reconfiguration of the master cell is received, or when a new radio handover command is received, or when a reestablishment procedure is started;

[0074] T319: start when the terminal sends an RRC resume request message, stop when an RRC resume message is received, or when an RRC setup message is received, or when an RRC release message is received, or when an RRC release message with a suspend or RRC reject message is received, or when cell reselection is performed.

[0075] The related technologies and concepts related to the embodiments of the present application are introduced above, and the wireless link failure prediction method provided by the embodiments of the present application will be described in detail in combination with the drawings and some embodiments and application scenarios.

[0076] Referring to FIG. 4, an implementation flowchart of the wireless link failure prediction method provided by the embodiments of the present application is shown, and the method includes the following steps:

[0077] S410: The terminal determines the prediction information of the target cell;

[0078] S420: The terminal predicts whether a wireless link failure will occur in the target cell according to the prediction information, or the measurement information and the prediction information;

[0079] The measurement information includes at least one of a cell signal quality measurement result, a first synchronization indication, and a first out-of-sync indication.

[0080] The prediction information includes at least one of a cell signal quality prediction result, a second synchronization indication, and a second out-of-sync indication.

[0081] The first synchronization indication and the first out-of-sync indication are obtained based on the cell signal quality measurement result.

[0082] The second synchronization indication and the second out-of-sync indication are obtained based on the cell signal quality prediction result.

[0083] By using the method provided in the embodiments of the present application, the terminal determines the prediction information of the target cell, and then predicts whether the wireless link failure will occur in the target cell according to the prediction information or the measurement information and the prediction information, so as to report the network side device when predicting that the wireless link failure will occur, so that the network side device configures the terminal to switch to another cell in advance, or the terminal performs RRC reestablishment in advance, instead of performing switching configuration or RRC reestablishment and the like when the wireless link failure actually occurs, which can reduce the service interruption time and improve the stability of the service, thereby improving the user experience.

[0084] In the embodiments of the present application, the target cell can be a serving cell that establishes a connection with the terminal, and the terminal can obtain the measurement information of the target cell or a neighbor cell of the target cell. The measurement information can include at least one of a cell signal quality measurement result, a first synchronization indication, and a first out-of-sync indication, wherein the first synchronization indication and the first out-of-sync indication can be obtained based on the cell signal quality measurement result. For example, when the cell signal quality measurement result is less than or equal to a sixth threshold value, the first out-of-sync indication is determined, or when the cell signal quality measurement result is greater than or equal to a seventh threshold value, the first synchronization indication is determined.

[0085] The terminal can determine the prediction information of the target cell according to the measurement information of the target cell or a neighbor cell of the target cell.

[0086] Optionally, the terminal can determine the prediction information of the target cell according to the measurement information of the target cell or a neighbor cell of the target cell obtained within an observation window.

[0087] The prediction information can include at least one of a cell signal quality prediction result, a second synchronization indication, and a second out-of-sync indication, wherein the second synchronization indication and the second out-of-sync indication are obtained based on the cell signal quality prediction result. For example, when the cell signal quality prediction result is less than or equal to a fourth threshold value, the second out-of-sync indication is determined, or when the cell signal quality prediction result is greater than or equal to a fifth threshold value, the second synchronization indication is determined.

[0088] The fourth threshold and the sixth threshold can be the same or different, the fifth threshold and the seventh threshold can be the same or different, the fifth threshold is greater than the fourth threshold, and the seventh threshold is greater than the sixth threshold.

[0089] Optionally, the cell quality measurement result or the cell quality prediction result can be characterized by a signal to interference plus noise ratio (SINR).

[0090] The terminal can predict whether a radio link failure will occur in the target cell according to the prediction information of the target cell. Alternatively, the terminal can predict whether a radio link failure will occur in the target cell according to the measurement information of the target cell and the prediction information of the target cell. If it is predicted that a radio link failure will occur in the target cell, the terminal can report to the network side device to assist the network side device in configuring the terminal to switch to another cell in advance, or the terminal can perform RRC reestablishment in advance. Instead of performing switching configuration or RRC reestablishment when the radio link failure actually occurs. Because the radio link failure is predicted, the terminal or the network side device can take measures in advance to ensure the continuity and stability of the service and reduce the service interruption time.

[0091] In some embodiments of the present application, the terminal predicts whether a radio link failure will occur in the target cell according to the prediction information, or the measurement information and the prediction information, can include the following steps:

[0092] The terminal predicts whether a radio link failure will occur in the target cell according to the prediction information, or the measurement information and the prediction information, based on the first information

[0093] In the embodiments of the present application, the terminal can obtain the first information, which can be configured by the network side device or agreed by the protocol. The terminal can also determine the first information based on its own implementation.

[0094] The first information includes at least one of the following:

[0095] 1) observation window information;

[0096] Optionally, the observation window information can include at least one of the start time of the observation window, the end time of the observation window, and the time length of the observation window.

[0097] The terminal can determine which time period of measurement information to be used for radio link failure prediction based on the observation window information, or the observation window information can be used to determine the time period of measurement information for radio link failure prediction.

[0098] 2) prediction window information;

[0099] Optionally, the prediction window information can comprise at least one of a start time of the prediction window, an end time of the prediction window, and a time length of the prediction window.

[0100] The terminal can determine, according to the prediction window information, which time period is to be predicted whether a radio link failure will occur in the target cell, or the prediction window information can be used to determine a time period in which a radio link failure in the target cell is to be predicted.

[0101] 3) prediction period information;

[0102] The terminal can periodically perform the prediction of the radio link failure according to the prediction period information.

[0103] Optionally, the prediction period information indicates a prediction period.

[0104] Optionally, the prediction period can be agreed by a protocol, or configured by a network side device, or determined by the terminal itself, for example, determined by the terminal according to a delay requirement or a Quality of Service (QoS) of a communication service, etc.

[0105] 4) prediction instance information;

[0106] Optionally, the prediction instance information can comprise at least one of a time interval of a prediction instance and a number of prediction instances.

[0107] The terminal can determine, according to the prediction instance information, a time interval of a prediction instance or a number of prediction instances for predicting whether a radio link failure will occur in the target cell.

[0108] 5) prediction bias duration;

[0109] The terminal can determine, according to the prediction bias duration, how long after an execution time of the prediction behavior a radio link failure in the target cell is to be predicted.

[0110] 6) first time length;

[0111] The terminal can determine, according to the first time length, a duration based on which a prediction determination of the radio link failure is performed.

[0112] 7) first window information;

[0113] Optionally, the first window information can comprise at least one of a start time of the first window, an end time of the first window, and a time length of the first window.

[0114] The terminal can determine, according to the first window information, based on which measurement information and / or prediction information of which time period a prediction of the radio link failure is performed.

[0115] 8) threshold information;

[0116] Optionally, the threshold information can include at least one of:

[0117] a first threshold, the first threshold being used to indicate an upper limit of the first counter; it can be understood that the maximum value of the first counter is the first threshold;

[0118] a second threshold, the second threshold being used to indicate an upper limit of the second counter; it can be understood that the maximum value of the second counter is the second threshold;

[0119] a third threshold, the third threshold being used to indicate a timeout of the first timer; it can be understood that the maximum value of the first timer is the third threshold;

[0120] a fourth threshold, the fourth threshold being used to obtain the second out-of-sync indication based on the cell signal quality prediction result; it can be understood that when the cell signal quality prediction result is less than or equal to the fourth threshold, the second out-of-sync indication is obtained;

[0121] a fifth threshold, the fifth threshold being used to obtain the second in-sync indication based on the cell signal quality prediction result; it can be understood that when the cell signal quality prediction result is greater than or equal to the fifth threshold, the second in-sync indication is obtained;

[0122] a sixth threshold, the sixth threshold being used to obtain the first out-of-sync indication based on the cell signal quality measurement result; it can be understood that when the cell signal quality measurement result is less than or equal to the sixth threshold, the first out-of-sync indication is obtained;

[0123] a seventh threshold, the seventh threshold being used to obtain the first in-sync indication based on the cell signal quality measurement result; it can be understood that when the cell signal quality measurement result is greater than or equal to the seventh threshold, the first in-sync indication is obtained.

[0124] The fourth threshold and the sixth threshold can be the same or different, and the fifth threshold and the seventh threshold can be the same or different.

[0125] Based on the first information, the terminal can determine the related configuration of the radio link failure prediction process, and then accurately predict whether the radio link failure will occur in the target cell according to the prediction information, or the measurement information and the prediction information.

[0126] In some embodiments of the present application, the prediction information is obtained according to a plurality of prediction instances in the first window, and the terminal predicts whether the radio link failure will occur in the target cell according to the prediction information, or the measurement information and the prediction information, which can include the following steps:

[0127] The terminal determines, according to the prediction information or the measurement information and the prediction information, whether there is at least one first instance group in the first window, wherein the first instance group contains consecutive N1 first instances, the first instance includes a first prediction instance, or the first instance includes a first measurement instance and a first prediction instance, or the first instance includes a first measurement instance;

[0128] If there is no second instance group in the first time length from the first processing moment corresponding to the last first instance in the i1th first instance group, the terminal predicts that a radio link failure will occur in the target cell at the first moment, wherein the second instance group contains consecutive M second instances, the second instance includes a second prediction instance, or the second instance includes a second measurement instance and a second prediction instance, or the second instance includes a second measurement instance;

[0129] If there is at least one second instance group in the first time length from the first processing moment, the terminal predicts that a radio link failure will not occur in the target cell at the second moment or in the first time period;

[0130] Wherein N1 and M are positive integers;

[0131] The i1th first instance group is one of the at least one first instance group, i1 = 1, 2, …, K, and K represents the total number of the at least one first instance group;

[0132] The first moment corresponds to the end moment of the first time length corresponding to the i1th first instance group;

[0133] The second moment corresponds to the processing moment corresponding to the last second instance in a second instance group in the first time length from the first processing moment;

[0134] The first time period corresponds to from the second moment to the first moment.

[0135] For the convenience of description, the above steps are combined for description.

[0136] In the embodiments of the present application, the terminal can determine the prediction information of the target cell according to the measurement information of the target cell or the neighbor cell of the target cell. The measurement information includes at least one of a cell signal quality measurement result, a first synchronization indication, and a first out-of-sync indication. The prediction information includes at least one of a cell signal quality prediction result, a second synchronization indication, and a second out-of-sync indication, and is obtained according to a plurality of prediction instances in a prediction window. It can be understood that the terminal determines the plurality of prediction instances in the prediction window according to the measurement information obtained based on a plurality of measurement instances of the target cell or the neighbor cell in an observation window.

[0137] The terminal can determine whether there is at least one first instance group in the first window according to the prediction information, or the measurement information and the prediction information.

[0138] The first instance group contains consecutive N1 first instances. It can be understood that the first instance group contains consecutive N1 first instances, and does not contain instances of non-first instances. The first instance can include a first prediction instance, or the first instance includes a first measurement instance and a first prediction instance, or the first instance includes a first measurement instance. In the case where the first instance includes the first prediction instance, the first instance group contains consecutive N1 first instances including the first prediction instance, and does not contain instances of non-first prediction instances. In the case where the first instance includes the first measurement instance and the first prediction instance, the first instance group contains consecutive N1 first instances including the first measurement instance and the first prediction instance, and does not contain instances of non-first measurement instances and non-first prediction instances. In the case where the first instance includes the first measurement instance, the first instance group contains consecutive N1 first instances including the first measurement instance, and does not contain instances of non-first measurement instances. The following similar concepts can be understood in this way.

[0139] Optionally, the first prediction instance corresponds to a second out-of-sync indication, or a cell signal quality prediction result of the first prediction instance is less than or equal to a fourth threshold value.

[0140] Optionally, the second prediction instance corresponds to a second in-sync indication, or a cell signal quality prediction result of the second prediction instance is greater than or equal to a fifth threshold value.

[0141] The greater the cell signal quality prediction result, the better the predicted cell signal quality, and the smaller the cell signal quality prediction result, the worse the predicted cell signal quality.

[0142] Optionally, the first measurement instance corresponds to a first out-of-sync indication, or a cell signal quality prediction result of the first measurement instance is less than or equal to a sixth threshold value.

[0143] Optionally, the second measurement instance corresponds to a first in-sync indication, or a cell signal quality prediction result of the second measurement instance is greater than or equal to a seventh threshold value.

[0144] The greater the cell signal quality measurement result, the better the measured cell signal quality, and the smaller the cell signal quality measurement result, the worse the measured cell signal quality.

[0145] Optionally, the time length of the first window is greater than or equal to a first window length, and the first window length is a sum of a time length corresponding to N1 first instances and the first time length.

[0146] Optionally, in the case that the terminal predicts whether radio link failure will occur in the target cell according to the prediction information, the time length of the first window is greater than or equal to a first window length, the first window length being a sum of a time length corresponding to N1 prediction instances and the first time length, the time length corresponding to N1 prediction instances = N1 * time interval of the prediction instance, N1 being an integer.

[0147] In the case that the terminal predicts whether radio link failure will occur in the target cell according to the measurement information and the prediction information, the time length of the first window is greater than or equal to a first window length, the first window length being a sum of a time length corresponding to N11 measurement instances, a time length corresponding to N12 prediction instances and the first time length, the time length corresponding to N11 measurement instances = N11 * time interval of the measurement instance, the time length corresponding to N12 prediction instances = N12 * time interval of the prediction instance, N1 = N11 + N12. N11 and N12 are variable integers. In particular, when N11 = N1 and N12 = 0, the first window length is a sum of the time length corresponding to N1 measurement instances and the first time length.

[0148] In the case that the terminal determines that there is at least one first instance group, if there is no second instance group within the first time length starting from the first processing time corresponding to the last first instance in the i1th first instance group, the terminal predicts that radio link failure will occur in the target cell at the first time.

[0149] The second instance group contains M consecutive second instances. It can be understood that the second instance group contains M consecutive instances, and the M consecutive instances are all second instances, and do not contain non-second instances. The second instance includes a second prediction instance, or the second instance includes a second measurement and a second prediction instance, or the second instance includes a second measurement instance.

[0150] The first processing time refers to the time when the last first instance in the i1th first instance group occurs. If the first instance includes a first measurement instance, the first processing time refers to the time when the first measurement instance actually occurs. If the first instance includes a first prediction instance, the first processing time refers to the time when the first prediction instance is predicted to occur. The first processing time is different from the time when the prediction behavior is performed. The following similar concepts can be understood in this way.

[0151] The first time corresponds to the end time of the first time length corresponding to the i1th first instance group.

[0152] In the case that the terminal determines that there is at least one first instance group, if there is at least one second instance group within the first time length starting from the first processing time, the terminal predicts that radio link failure will not occur in the target cell at the second time or within the first time period.

[0153] The second time corresponds to a processing time corresponding to a last second instance in a first group of second instances within the first time length from the first processing time.

[0154] Optionally, the second time corresponds to a processing time corresponding to a last second instance in a first group of second instances within the first time length from the first processing time. It can be understood that in the case that there are multiple groups of second instances within the first time length from the first processing time, the first group of second instances corresponds to a processing time closest to the predicted behavior execution time, and the prediction accuracy is higher. It is considered that the determination that the processing time corresponding to the last second instance in the first group of second instances will not cause radio link failure in the target cell is more accurate.

[0155] Optionally, the second time corresponds to a processing time corresponding to a last second instance in a last group of second instances within the first time length from the first processing time.

[0156] Optionally, the second time corresponds to a processing time corresponding to a last second instance in any or each group of second instances within the first time length from the first processing time.

[0157] The first time period corresponds to a time period from the second time to the first time.

[0158] The i1th first instance group is one of the at least one first instance group. i1=1, 2, …, K, K represents the total number of the at least one first instance group.

[0159] For example, i1=2, if there is no second instance group within the first time length from the first processing time corresponding to the last first instance in the second first instance group, it is predicted that radio link failure will occur in the target cell at the first time, and the first time corresponds to the end time of the first time length corresponding to the second first instance group; if there is at least one second instance group within the first time length from the first processing time, it is predicted that radio link failure will not occur in the target cell at the second time or within the first time period.

[0160] In the case that the terminal determines that there are at least one first instance group, for each first instance group, the terminal determines whether there is a second instance group in a first time length starting from a first processing time corresponding to the last first instance in the first instance group. If there is no second instance group, it means that the number of cell signal quality prediction results greater than or equal to the fifth threshold value, or the number of cell signal quality measurement results greater than or equal to the seventh threshold value, or the number of first synchronization indications, or the number of second synchronization indications in the corresponding time period is insufficient, and the probability of radio link failure is large. It can be predicted that a radio link failure will occur in the target cell at the first time. If there are at least one second instance group, it means that there are continuous cell signal quality prediction results greater than or equal to the fifth threshold value, or continuous cell signal quality measurement results greater than or equal to the seventh threshold value, or continuous second synchronization indications, or continuous first synchronization indications in the corresponding time period, and the probability of radio link failure is small. It can be predicted that a radio link failure will not occur in the target cell at the second time or in the first time period. The prediction accuracy of radio link failure is improved.

[0161] In some embodiments of the present application, the method can further include the following steps:

[0162] In the case that the terminal determines that there are continuous L first instance groups, if there is no second instance group in a first time length starting from a second processing time corresponding to the last first instance in the i2th first instance group, and there is no second instance group in a first time length starting from a third processing time corresponding to the last first instance in the i3th first instance group, it is predicted that a radio link failure will occur in the target cell in a second time period;

[0163] If there are at least one second instance group in a first time length starting from the second processing time, and there are at least one second instance group in a first time length starting from the third processing time, it is predicted that a radio link failure will not occur in the target cell in a third time period or a fourth time period;

[0164] Wherein, the i2th first instance group and the i3th first instance group are one of the continuous L first instance groups, i3>i2;

[0165] The second time period corresponds to the end time of the first time length corresponding to the i2th first instance group to the end time of the first time length corresponding to the i3th first instance group;

[0166] The third time period corresponds to the processing time corresponding to the last second instance in the first second instance group in the first time length starting from the second processing time to the processing time corresponding to the last second instance in the first time length starting from the third processing time;

[0167] The fourth time period corresponds to a time period from a second processing time point corresponding to the last second instance in the first second instance group in the first time length to an end time point of the first time length from a third processing time point.

[0168] For convenience of description, the above steps are combined for description.

[0169] In the embodiment of the present application, the terminal determines, according to the prediction information or the measurement information and the prediction information, that if there is no second instance group in the first time length from the second processing time point corresponding to the last first instance in the i2th first instance group and until there is no second instance group in the first time length from the third processing time point corresponding to the last first instance in the i3th first instance group, it is predicted that a radio link failure will occur in the target cell in the second time period under the condition that there are continuous L first instance groups in the first window. It can be understood that if there is no second instance group in the first time length from the processing time point corresponding to the last first instance in each of the i2th first instance group to the i3th first instance group, it is predicted that a radio link failure will occur in the target cell in the second time period.

[0170] The understanding of the second processing time point and the third processing time point can refer to the understanding of the first processing time point, and will not be repeated.

[0171] The second time period corresponds to a time period from an end time point of the first time length corresponding to the i2th first instance group to an end time point of the first time length corresponding to the i3th first instance group.

[0172] The i2th first instance group and the i3th first instance group are one of the continuous L first instance groups, and i3>i2.

[0173] For example, L=5, i2=2, i3=4, in the case that there is no second instance group in the first time length from the second processing time point corresponding to the last first instance in the second first instance group, there is no second instance group in the first time length from the processing time point corresponding to the last first instance in the third first instance group, and there is no second instance group in the first time length from the third processing time point corresponding to the last first instance in the fourth first instance group, it is predicted that a radio link failure will occur in the target cell in the second time period.

[0174] If there is at least one second instance group in the first time length from the second processing moment, and there is at least one second instance group until the first time length from the third processing moment, it is predicted that there will be no radio link failure in the target cell in the third time period or the fourth time period. It can be understood that, if there is at least one second instance group in the first time length from the processing moment corresponding to the last first instance in each of the first instance groups from the i2th first instance group to the i3th first instance group, it is predicted that there will be no radio link failure in the target cell in the third time period or the fourth time period.

[0175] The third time period corresponds to the processing moment corresponding to the last second instance in the first second instance group in the first time length from the second processing moment to the processing moment corresponding to the last second instance in the first time length from the third processing moment.

[0176] The fourth time period corresponds to the processing moment corresponding to the last second instance in the first second instance group in the first time length from the second processing moment to the end moment of the first time length from the third processing moment.

[0177] It should be noted that, in the embodiments of the present application, the first time length corresponding to a certain first instance group refers to the first time length from the processing moment corresponding to the last first instance in the first instance group.

[0178] In the case of determining that there are continuous multiple first instance groups, according to whether there is a second instance group in the first time length from the processing moment corresponding to the last first instance in the continuous several first instance groups, it is helpful to improve the prediction effectiveness of the radio link failure to predict whether there will be a radio link failure in the target cell in the corresponding time period.

[0179] In some embodiments of the present application, the prediction information is obtained according to a plurality of prediction instances in a prediction window, and the terminal predicts whether there will be a radio link failure in the target cell according to the prediction information, which can include the following steps:

[0180] In the case of obtaining continuous N2 first measurement instances, according to the prediction information, if it is determined that there is no second prediction instance group in the first time length from the first measurement moment corresponding to the last first measurement instance in the continuous N2 first measurement instances, it is predicted that there will be a radio link failure in the target cell at the third moment, wherein the second prediction instance group contains continuous M second prediction instances.

[0181] According to the prediction information, if it is determined that there is at least one second prediction instance group in the first time length from the first measurement moment, it is predicted that there will be no radio link failure in the target cell in the fourth moment or the fifth time period.

[0182] N2, M are positive integers;

[0183] The third time corresponds to the end time of the first time length corresponding to the continuous N2 first measurement instances;

[0184] The fourth time corresponds to the prediction time corresponding to the last second prediction instance in one second prediction instance group within the first time length starting from the first measurement time;

[0185] The fifth time period corresponds to the time period from the fourth time to the third time.

[0186] For the convenience of description, the above steps are combined for description.

[0187] In the embodiments of the present application, the prediction information is obtained based on a plurality of prediction instances within a prediction window.

[0188] In the case that the terminal obtains the continuous N2 first measurement instances, the terminal can determine whether there is at least one second prediction instance group within the first time length starting from the first measurement time corresponding to the last first measurement instance in the continuous N2 first measurement instances according to the prediction information.

[0189] If there is no second prediction instance group, it is considered that the wireless link condition of the target cell within the first time length starting from the first measurement time is not ideal, and it is predicted that the wireless link failure will occur in the target cell at the third time.

[0190] The third time corresponds to the end time of the first time length corresponding to the continuous N2 first measurement instances, which can be understood as the end time of the first time length starting from the first measurement time corresponding to the last first measurement instance in the continuous N2 first measurement instances.

[0191] If there is at least one second prediction instance group, it is considered that the wireless link of the target cell within the first time length starting from the first measurement time has the possibility of recovery, and it is predicted that the wireless link failure will not occur in the target cell within the fourth time or the fifth time period.

[0192] The fourth time corresponds to the prediction time corresponding to the last second prediction instance in one second prediction instance group within the first time length starting from the first measurement time.

[0193] Optionally, the fourth time corresponds to a prediction time corresponding to a last second prediction instance in a last second prediction instance group within the first time length from the first measurement time.

[0194] Optionally, the fourth time corresponds to a prediction time corresponding to a last second prediction instance in a last second prediction instance group within the first time length from the first measurement time.

[0195] Optionally, the fourth time corresponds to a prediction time corresponding to a last second prediction instance in any or each second prediction instance group within the first time length from the first measurement time.

[0196] The fifth time period corresponds to a time period from the fourth time to the third time.

[0197] Optionally, the start time of the prediction window is the same as the first measurement time.

[0198] The terminal starts to predict the radio link failure when it obtains the continuous N2 first measurement instances, so that it can take measures in time when the radio link failure is predicted.

[0199] In some embodiments of the present application, the at least one first instance group includes two or more first instance groups, and at least one same first instance is included between different first instance groups. For example, the continuous first instances include first instance 1, first instance 2, …, first instance 6, N1=3, and a first instance group includes three continuous first instances. In the case where two same first instances are included between different first instance groups, the number of first instance groups K=4, i.e., the first first instance group includes first instance 1, first instance 2, first instance 3, the second first instance group includes first instance 2, first instance 3, first instance 4, the third first instance group includes first instance 3, first instance 4, first instance 5, and the fourth first instance group includes first instance 4, first instance 5, first instance 6. Alternatively, in the case where one same first instance is included between different first instance groups, the number of first instance groups K=3, i.e., the first first instance group includes first instance 1, first instance 2, first instance 3, the second first instance group includes first instance 3, first instance 4, first instance 5, and the third first instance group includes first instance 4, first instance 5, first instance 6. In this way, whether the radio link failure will occur at more times or time periods can be predicted.

[0200] Or, different first instance groups do not contain the same first instance. For example, the continuous multiple first instances include first instance 1, first instance 2, …, first instance 6, N1 = 3, then the first instance group contains three continuous first instances, the first instance group number K = 2, that is, the first first instance group includes first instance 1, first instance 2, first instance 3, and the second first instance group includes first instance 4, first instance 5, and first instance 6.

[0201] In some embodiments of the present application, at least one second prediction instance group includes two or more second prediction instances, and different second prediction instance groups contain at least one same second prediction instance. For example, the continuous multiple second prediction instances include second prediction instance 1, second prediction instance 2, …, second prediction instance 6, the second prediction instance group contains three continuous second prediction instances, the first second prediction instance group includes second prediction instance 1, second prediction instance 2, and second prediction instance 3, the second second prediction instance group includes second prediction instance 2, second prediction instance 3, and second prediction instance 4, the third second prediction instance group includes second prediction instance 3, second prediction instance 4, and second prediction instance 5, and the fourth second prediction instance group includes second prediction instance 4, second prediction instance 5, and second prediction instance 6. Or, the first second prediction instance group includes second prediction instance 1, second prediction instance 2, and second prediction instance 3, the second second prediction instance group includes second prediction instance 3, second prediction instance 4, and second prediction instance 5, and the third second prediction instance group includes second prediction instance 4, second prediction instance 5, and second prediction instance 6. In this way, whether the wireless link failure recovery occurs at more time or time period can be predicted.

[0202] Or, different second prediction instance groups do not contain the same second prediction instance. For example, the continuous multiple second prediction instances include second prediction instance 1, second prediction instance 2, …, second prediction instance 6, the second prediction instance group contains three continuous second prediction instances, the first second prediction instance group includes second prediction instance 1, second prediction instance 2, and second prediction instance 3, and the second second prediction instance group includes second prediction instance 4, second prediction instance 5, and second prediction instance 6.

[0203] In some embodiments of the present application, at least one second instance group includes two or more second instance groups, and different second instance groups contain at least one same second instance. Or, different second instance groups do not contain the same second instance. For reference, the description of different first instance groups containing at least one same first instance or different first instance groups not containing the same first instance is not repeated.

[0204] In some embodiments of the present application, the terminal determining the prediction information of the target cell can comprise the following steps:

[0205] The terminal determines the prediction information of the target cell according to the prediction period.

[0206] In the embodiments of the present application, the terminal can periodically determine the prediction information of the target cell according to the prediction period, so that the prediction information of the target cell can be continuously obtained, so as to enable the prediction of whether the radio link failure will occur in the target cell based on a sufficient number of prediction information.

[0207] Optionally, the terminal can periodically determine the prediction information of the target cell at a prediction moment according to the measurement information corresponding to the measurement instances of the target cell or the neighboring cells of the target cell in the observation window.

[0208] In some embodiments of the present application, the terminal predicting whether the radio link failure will occur in the target cell according to the prediction information can comprise the following steps:

[0209] The terminal maintains a first counter and a second counter according to the prediction information;

[0210] The terminal starts a first timer and releases the first counter when the first counter reaches a first threshold value;

[0211] The terminal stops the first timer and predicts that the radio link failure will not occur in the target cell at a fifth moment when the first timer does not time out and the second counter reaches a second threshold value;

[0212] The terminal predicts that the radio link failure will occur in the target cell at a sixth moment when the first timer times out and the second counter does not reach the second threshold value;

[0213] The first counter is used to record the number of consecutive first prediction instances;

[0214] The second counter is used to record the number of consecutive second prediction instances;

[0215] The fifth moment corresponds to the moment when the second counter reaches the second threshold value;

[0216] The sixth moment corresponds to the moment when the first timer times out.

[0217] For the convenience of description, the above steps are combined for description.

[0218] In the embodiments of the present application, the terminal periodically determines the prediction information of the target cell according to the measurement information of the target cell or the neighboring cells of the target cell. The terminal can continuously obtain the prediction information of the target cell.

[0219] The terminal can maintain a first counter and a second counter according to the prediction information. The first counter is used to record the number of consecutive first prediction instances, and the second counter is used to record the number of consecutive second prediction instances.

[0220] Optionally, the terminal can add one to the value of the first counter each time a first prediction instance is determined, and set the value of the first counter to zero each time a second prediction instance is determined, according to the order of the prediction time corresponding to the prediction information.

[0221] For example, the initial value of the first counter is 0. The terminal obtains the first prediction information, determines a first prediction instance according to the first prediction information, and then adds one to the value of the first counter, so that the value of the first counter is 1. The terminal obtains the second prediction information, determines a first prediction instance according to the second prediction information, and then adds one to the value of the first counter, so that the value of the first counter is 2. The terminal obtains the third prediction information, determines a second prediction instance according to the third prediction information, and then sets the value of the first counter to zero, so that the value of the second counter is 0. The terminal obtains the fourth prediction information, determines a first prediction instance according to the fourth prediction information, and then adds one to the value of the first counter, so that the value of the first counter is 1. In this way, the first counter is maintained in real time.

[0222] The terminal starts a first timer and releases the first counter when the first counter reaches a first threshold.

[0223] The terminal can still obtain prediction information of the target cell during running of the first timer, and maintain the second counter according to the prediction information obtained during running of the first timer.

[0224] Optionally, the terminal can add one to the value of the second counter each time a second prediction instance is determined, and set the value of the second counter to zero each time a first prediction instance is determined, according to the order of the prediction time corresponding to the prediction information, when the first timer is started.

[0225] For example, the initial value of the second counter is 0. The terminal obtains the first prediction information when the first timer is started, determines a second prediction instance according to the first prediction information, and then adds one to the value of the second counter, so that the value of the second counter is 1. The terminal obtains the second prediction information when the first timer is started, determines a first prediction instance according to the second prediction information, and then sets the value of the second counter to zero, so that the value of the second counter is 0. The terminal obtains the second prediction information when the first timer is started, determines a second prediction instance according to the second prediction information, and then adds one to the value of the second counter, so that the value of the second counter is 1. In this way, the second counter is maintained in real time.

[0226] In a case that the first timer does not expire and the second counter reaches the second threshold, the terminal considers that the future radio link condition will be improved, can stop the first timer, and predicts that the radio link failure will not occur in the target cell at the fifth time. The fifth time corresponds to the time when the second counter reaches the second threshold. The first timer not expiring means that the first timer does not reach the third threshold.

[0227] In a case that the first timer expires and the second counter does not reach the second threshold, the terminal considers that the future radio link condition is not improved, and predicts that the radio link failure will occur in the target cell at the sixth time. The sixth time corresponds to the time when the first timer expires.

[0228] The terminal can accurately predict whether the radio link failure will occur in the target cell by maintaining the first counter and the second counter.

[0229] In some embodiments of the present application, the terminal determining the prediction information of the target cell can include the following steps:

[0230] The terminal determines the prediction information of the target cell based on an artificial intelligence (AI) function or an AI unit.

[0231] In the embodiments of the present application, the AI function or the AI unit can be pre-trained. The label of the training set can be measurement information of the current serving cell or a neighbor cell, or a first in-sync indication or a first out-of-sync indication obtained based on a cell signal quality measurement result.

[0232] After the terminal obtains the measurement information of the target cell or a neighbor cell of the target cell, the terminal can input the measurement information of the target cell or the neighbor cell of the target cell into the AI function or the AI unit for inference, and determine the prediction information of the target cell according to an output of the AI function or the AI unit.

[0233] The AI function or the AI unit can be used to efficiently and accurately determine the prediction information of the target cell.

[0234] In some embodiments of the present application, the terminal determining the prediction information of the target cell includes:

[0235] A physical layer of the terminal determines the prediction information of the target cell.

[0236] The terminal predicts whether the radio link failure will occur in the target cell according to the prediction information, or the measurement information and the prediction information, including:

[0237] A radio resource control layer of the terminal obtains the prediction information, or the measurement information and the prediction information, from the physical layer of the terminal.

[0238] The radio resource control layer of the terminal predicts whether a radio link failure will occur in the target cell according to the prediction information or the measurement information and the prediction information.

[0239] For convenience of description, the above steps are described in combination.

[0240] In the embodiments of the present application, the physical layer of the terminal can first determine the prediction information of the target cell, and then deliver the prediction information of the target cell or the measurement information and the prediction information to the RRC layer of the terminal.

[0241] After the RRC layer of the terminal obtains the prediction information or the measurement information and the prediction information from the physical layer of the terminal, the RRC layer of the terminal predicts whether a radio link failure will occur in the target cell according to the prediction information or the measurement information and the prediction information.

[0242] Optionally, in the case that the prediction information includes a cell signal quality prediction result or the measurement information includes a cell signal quality measurement result, the RRC layer of the terminal can determine a second synchronization indication or a second out-of-sync indication according to the cell signal quality prediction result, or determine a first out-of-sync indication or a first synchronization indication according to the cell signal quality measurement result, and then predict whether a radio link failure will occur in the target cell according to at least one of the second synchronization indication, the second out-of-sync indication, the first out-of-sync indication, or the first synchronization indication.

[0243] The physical layer and the RRC layer of the terminal cooperate to predict the radio link failure, which helps to distinguish the functions of various protocol entities and improve the working efficiency of the terminal.

[0244] In some embodiments of the present application, in the case that the physical layer of the terminal determines the prediction information of the target cell according to a prediction period, the method further includes:

[0245] The physical layer of the terminal indicates the prediction information or the measurement information and the prediction information to the radio resource control layer of the terminal according to a first period;

[0246] The first period is the prediction period, or a radio link monitoring indication period, or a maximum value between the prediction period and the radio link monitoring indication period.

[0247] The radio link monitoring indication period is one of the following:

[0248] A period of a radio link monitoring resource, 10s, or a maximum value between the period of the radio link monitoring resource and 10s.

[0249] It can be understood that the period of the radio link monitoring resource can be a measurement period, i.e., a period in which the terminal acquires a measurement instance.

[0250] In the embodiments of the present application, the physical layer of the terminal can periodically determine the prediction information of the target cell according to the measurement information of the target cell or the neighboring cell of the target cell according to a prediction period, and then indicate the prediction information or the measurement information and the prediction information to the RRC layer of the terminal according to a first period.

[0251] The indication of the prediction information from the physical layer to the RRC layer of the terminal according to the first period can reduce unnecessary interlayer interaction and improve the effectiveness of the indication from the physical layer to the RRC layer.

[0252] The technical solutions provided by the embodiments of the present application are described above, and for the convenience of understanding, specific examples are described below.

[0253] Example 1: The main idea is that the prediction information indicated by the physical layer of the terminal to the RRC layer of the terminal at T0 corresponds to multiple prediction instances and the time stamp corresponding to each prediction instance, and the RRC layer of the terminal predicts whether a radio link failure will occur and the time of the radio link failure according to the first information and the prediction information.

[0254] This example can use the prediction information determined based on the measurement information of the observation window of the wireless link monitoring reference signal (Reference Signal, RLM-RS) to assist in predicting the radio link failure. Unlike the radio link failure monitoring method in the related art, this example can predict the occurrence of the radio link failure and the corresponding occurrence time in advance, which can assist the network side device to optimize the handover configuration, shorten the residence time of the terminal in the cell with poor signal quality, and optimize the terminal service experience.

[0255] The physical layer of the terminal obtains the measurement information of the target cell in the observation window based on the first information, such as the cell measurement SINR, determines the prediction information of the target cell, such as multiple cell prediction SINRs, according to the measurement information, such as the cell measurement SINR, and judges the second synchronization indication or the second out-of-sync indication based on the terminal implementation, and then submits the second synchronization indication or the second out-of-sync indication and the corresponding prediction time stamp to the RRC layer. Alternatively, the physical layer of the terminal submits the cell prediction SINR to the RRC layer after determining the prediction information of the target cell, such as multiple cell prediction SINRs, and the RRC layer judges the second synchronization indication or the second out-of-sync indication based on the threshold information in the first information.

[0256] The first information includes at least one of the following:

[0257] The observation window information; the prediction window information; the prediction period information; the prediction instance information; the prediction bias duration; and the first time length.

[0258] In a prediction window (the time length of the prediction window ≥ N (e.g. N310) * the time interval of the prediction instance + the first time length (e.g. the time length of T310)), the RRC layer of the terminal judges based on the following conditions:

[0259] In the case that there are continuous N second out-of-sync indications, if there are no continuous M (e.g. N311) second in-sync indications in the first time length, the RRC layer of the terminal predicts that a radio link failure will occur in the target cell at the time point at the end of the first time length.

[0260] Wherein, the judgment on the existence of continuous N second out-of-sync indications can be judged slidingly in the prediction window, to predict whether a radio link failure will occur at any time point in the prediction window.

[0261] As shown in FIG. 5, the physical layer of the terminal acquires the cell measurement SINR of the target cell in the observation window (as shown in the black filled rectangle), and at T0, determines the cell prediction SINR according to the cell measurement SINR (as shown in the black bottom left diagonal line filled rectangle and the black bottom right diagonal line filled rectangle). If the block error rate corresponding to the cell prediction SINR is less than or equal to Qin, it is considered that the radio link quality is good, and a second in-sync indication is determined. Or it can be understood that if the cell prediction SINR is greater than or equal to the SINR derived according to Qin and the current downlink reception parameters of the terminal, it is considered that the radio link quality is good, and a second in-sync indication is determined. If the block error rate corresponding to the cell prediction SINR is greater than or equal to Qout, it is considered that the radio link quality is poor, and a second out-of-sync indication is determined. Or it can be understood that if the cell prediction SINR is less than or equal to the SINR derived according to Qout and the current downlink reception parameters of the terminal, it is considered that the radio link quality is poor, and a second out-of-sync indication is determined. The starting time point of the prediction window and the T0 time point are the prediction bias time length. The physical layer of the terminal delivers the second out-of-sync indication or the second in-sync indication and the corresponding time stamp to the RRC layer of the terminal. If there are continuous three second in-sync indications in the first time length after the continuous three second out-of-sync indications in the prediction window, such as the continuous second in-sync indications reach N311, the RRC layer of the terminal predicts that a radio link failure will not occur at the time point corresponding to the second in-sync indication of the last black bottom right diagonal line filled rectangle.

[0262] As shown in FIG. 6, if there are N310 second out-of-sync indications in the prediction window, it is continued to judge whether there are N311 second in-sync indications in the first time length, and if there are N311 second in-sync indications in the first time length, it is considered that a radio link failure will not occur at the time point corresponding to the last second in-sync indication or from the time point corresponding to the last second in-sync indication to the end of the first time length.

[0263] If the terminal starts reasoning is that it has received N310 first out-of-sync indications, i.e., the UE has started T310, then within the prediction window, the RRC layer of the terminal decides based on the following conditions:

[0264] If the time length of the prediction window < the first time length, as shown in FIG. 7, the RRC layer of the terminal continues to record the second synchronization indications or the second out-of-sync indications within the prediction window (which can be equivalent to the number of prediction instances * the time interval of the prediction instances). In the case where the time length corresponding to the second synchronization indications or the second out-of-sync indications is equal to the first time length, if there are not consecutive M (for example, N311) second synchronization indications within the time length, the RRC layer of the terminal predicts that a radio link failure will occur at the end of the first time length.

[0265] If the time length of the prediction window >= the first time length, as shown in FIG. 8, if there are not consecutive M (for example, N311) second synchronization indications within the first time length, the RRC layer of the terminal predicts that a radio link failure will occur at the end of the first time length.

[0266] Example two: The main idea is that the physical layer of the terminal indicates the prediction information after the T indicate time length to the RRC layer according to the first period (for example, the indication period T offset ), and the RRC layer of the terminal predicts whether a radio link failure will occur and the time of the radio link failure according to the first information and the prediction information.

[0267] This example can use prediction information determined based on the measurement information of the RLM-RS within the observation window to assist in predicting the radio link failure. Unlike the radio link failure monitoring method in the related art, this example can predict the occurrence of the radio link failure and the corresponding time in advance, which can assist the network side device to optimize the handover configuration, shorten the residence time of the terminal in the cell with poor signal quality, and optimize the terminal service experience.

[0268] The execution logic of the terminal is as follows:

[0269] The physical layer of the terminal determines the second synchronization indication or the second out-of-sync indication according to the output of the AI model, and reports the RRC layer;

[0270] The RRC layer of the terminal maintains a counter for the second synchronization indication or the second out-of-sync indication.

[0271] The physical layer of the terminal acquires measurement information of the target cell in the observation window based on the first information, such as cell measurement SINR, determines predicted information of the target cell at a predicted time, such as cell predicted SINR, according to the first information and the measurement information, such as cell measurement SINR, and judges the second synchronization indication or the second out-of-sync indication based on the terminal implementation, and then submits the second synchronization indication or the second out-of-sync indication and the corresponding predicted timestamp to the RRC layer. Alternatively, the physical layer of the terminal submits the cell predicted SINR to the RRC layer after determining the predicted information of the target cell, such as the cell predicted SINR, and the RRC layer further judges the second synchronization indication or the second out-of-sync indication based on the threshold information in the first information.

[0272] The first information includes at least one of the following:

[0273] The observation window information; the prediction period information; the prediction instance information; the prediction bias duration; the first threshold value, the first threshold value is used to indicate the upper limit of the first counter; the second threshold value, the second threshold value is used to indicate the upper limit of the second counter; the third threshold value, the third threshold value is used to indicate the timeout of the first timer.

[0274] In a possible implementation, the RRC layer of the terminal maintains the first counter about the second out-of-sync indication.

[0275] Specifically, the value of the first counter is incremented by 1 every time a second out-of-sync indication is received.

[0276] If a second synchronization indication is received, the value of the first counter is set to zero.

[0277] When the value of the first counter reaches the first threshold value (for example, N310), the first timer is started, and the first counter is released.

[0278] During the running of the first timer, the second out-of-sync indication or the second synchronization indication is continuously received, and the second counter about the second synchronization indication is maintained.

[0279] The value of the second counter is incremented by 1 every time a second synchronization indication is received.

[0280] In the case of receiving a second out-of-sync indication, the value of the second counter is set to zero.

[0281] When the first timer does not timeout and the second counter reaches the second threshold value (for example, N311), the first timer is stopped, and it is predicted that there will be no radio link failure in the target cell at the time when the second counter reaches the second threshold value.

[0282] In the case that the first timer times out and the second counter does not reach the second threshold value, the RRC layer of the terminal predicts that there will be a radio link failure in the target cell at the time when the first timer times out.

[0283] As shown in FIG. 9, the physical layer of the terminal acquires the cell measurement SINRs of the target cell within the observation window (as shown in the black filled rectangle), at T1, determines the cell prediction SINR after T1+T offset , according to the multiple cell measurement SINRs within the observation window corresponding to T1, at T2, determines the cell prediction SINR after T2+T offset , according to the multiple cell measurement SINRs within the observation window corresponding to T2, and so on. The time interval between T1 and T2, and between T2 and T3 is T indicate . The cell prediction SINR is shown in the black bottom left diagonal line filled rectangle and the black bottom right diagonal line filled rectangle. If the block error rate corresponding to the cell prediction SINR is less than or equal to Qin, the second synchronization indication is determined, and if the block error rate corresponding to the cell prediction SINR is greater than or equal to Qout, the second out-of-sync indication is determined. Alternatively, it is understood that if the cell prediction SINR is greater than or equal to the SINR derived according to Qin and the current downlink reception parameters of the terminal, the second synchronization indication is determined, and if the cell prediction SINR is less than or equal to the SINR derived according to Qout and the current downlink reception parameters of the terminal, the second out-of-sync indication is determined. The physical layer of the terminal delivers the second out-of-sync indication or the second synchronization indication, and the corresponding time stamp, to the RRC layer of the terminal. If the first counter corresponding to the second out-of-sync indication reaches N310, the first timer is started, such as T310, and the second out-of-sync indication or the second synchronization indication is continuously received during the running of the first timer, if the first timer does not time out, and the second counter corresponding to the second synchronization indication reaches N311, it is predicted that the radio link failure will not occur in the target cell at the time when the second counter reaches N311.

[0284] Example Three:

[0285] The physical layer of the terminal acquires the measurement information, such as the cell measurement SINR, of the target cell within the observation window based on the first information, determines the prediction information, such as the multiple cell prediction SINRs, of the target cell according to the measurement information, such as the cell measurement SINR, and judges the first out-of-sync indication or the second synchronization indication or the second out-of-sync indication based on the implementation of the terminal, and then delivers the first out-of-sync indication or the second synchronization indication or the second out-of-sync indication, and the corresponding time stamp, to the RRC layer. Alternatively, the physical layer of the terminal delivers the cell prediction SINR to the RRC layer after determining the prediction information, such as the multiple cell prediction SINRs, of the target cell, and the RRC layer further judges the second synchronization indication or the second out-of-sync indication based on the threshold information in the first information.

[0286] The first information includes at least one of the following:

[0287] The observation window information; the prediction period information; the prediction instance information; the first time length; the first window information.

[0288] The RRC layer of the terminal combines the first out-of-sync indication, the second out-of-sync indication, and the second in-sync indication, and determines based on the following conditions:

[0289] In the time length of the first window, if there are continuous N310 first out-of-sync indications or second out-of-sync indications, and if there are not continuous N311 second in-sync indications in the first time length (for example, the duration of T310), the RRC layer of the terminal predicts that a radio link failure will occur at the end of the first time length.

[0290] In the time length of the first window, if there are continuous N310 first out-of-sync indications or second out-of-sync indications, and if there are not continuous N311 second in-sync indications in the first time length (for example, the duration of T310), the RRC layer of the terminal predicts that a radio link failure will occur at the end of the first time length.

[0291] It should be noted that in the above three examples, the physical layer of the terminal can also directly submit the cell measurement SINR and the corresponding timestamp, the cell predicted SINR and the corresponding timestamp to the RRC layer, and the RRC layer predicts whether a radio link failure will occur based on the configured SINR threshold. For example, when SINR >= threshold A, it is considered that the cell service quality is good (equivalent to the second in-sync indication above), and when SINR < threshold B, it is considered that the cell service quality is poor (equivalent to the first out-of-sync indication or the second out-of-sync indication above). Alternatively, the physical layer of the terminal can also directly submit the cell measurement SINR and the corresponding timestamp to the RRC layer, and the RRC layer determines the cell predicted SINR based on the AI model or unit, and further predicts whether the second out-of-sync indication or the second in-sync indication based on the cell predicted SINR and the configured SINR threshold.

[0292] Through the technical solutions provided by the embodiments of the present application, it can be predicted whether a radio link failure will occur, which assists the network side device to configure and decide mobility in advance, and helps to improve the service experience of the terminal.

[0293] The embodiments of the present application provide a radio link failure prediction device. As an example, the radio link failure prediction device can be a communication device or a component in a communication device, such as a chip. The communication device can be a terminal or a server, etc. For example, the terminal can include but is not limited to the types of terminal 11 listed above, and the embodiments of the present application are not limited specifically.

[0294] The wireless link failure prediction apparatus comprises a receiving module, a sending module and a processing module. The receiving module, the sending module and the processing module can be implemented by software or by hardware. When implemented by hardware, the processing module can be implemented by a processor, which can include a general-purpose processor, a special-purpose processor, a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), an artificial intelligent (AI) processor, a graphics processing unit (GPU), an application specific integrated circuit (ASIC), a network processor (NP), a field programmable gate array (FPGA) or other programmable logic devices, a gate circuit, a transistor, a discrete hardware component, etc. The receiving module and the sending module can be implemented by a communication interface, which can include a transceiver, a pin, a circuit, a bus, a radio frequency unit, etc.

[0295] Specifically, referring to FIG. 10, when the wireless link failure prediction apparatus is a terminal or a component in the terminal, the wireless link failure prediction apparatus 1000 comprises:

[0296] The processing module 1010 is configured to determine prediction information of the target cell.

[0297] The processing module 1010 is further configured to predict whether a wireless link failure will occur in the target cell according to the prediction information or the measurement information and the prediction information.

[0298] The measurement information comprises at least one of a cell signal quality measurement result, a first synchronization indication and a first out-of-sync indication.

[0299] The prediction information comprises at least one of a cell signal quality prediction result, a second synchronization indication and a second out-of-sync indication.

[0300] The first synchronization indication and the first out-of-sync indication are obtained based on the cell signal quality measurement result.

[0301] The second synchronization indication and the second out-of-sync indication are obtained based on the cell signal quality prediction result.

[0302] The device provided in the embodiment of the application is used to determine the prediction information of the target cell first, and then predict whether the radio link failure will occur in the target cell according to the prediction information or the measurement information and the prediction information, so as to report the network side device when the radio link failure is predicted to occur, so that the network side device configures the terminal to switch to another cell in advance, or the terminal performs RRC reestablishment in advance, instead of performing switching configuration or RRC reestablishment and the like when the radio link failure actually occurs, which can reduce the service interruption time and improve the stability of the service, thereby improving the user experience.

[0303] In some embodiments of the application, the processing module 1010 is specifically configured to:

[0304] predict, based on the first information, whether the radio link failure will occur in the target cell according to the prediction information or the measurement information and the prediction information;

[0305] The first information includes at least one of the following:

[0306] The observation window information, the prediction window information, the prediction period information, the prediction instance information, the prediction bias time length, the first time length, the first window information, and the threshold information.

[0307] In some embodiments of the application, the observation window information includes at least one of the following:

[0308] The start time of the observation window, the end time of the observation window, and the time length of the observation window.

[0309] Or, the prediction window information includes at least one of the following:

[0310] The start time of the prediction window, the end time of the prediction window, and the time length of the prediction window.

[0311] Or, the prediction instance information includes at least one of the following:

[0312] The time interval of the prediction instance and the number of the prediction instances.

[0313] Or, the first window information includes at least one of the following:

[0314] The start time of the first window, the end time of the first window, and the time length of the first window.

[0315] Or, the threshold information includes at least one of the following:

[0316] The first threshold, which is used to indicate the upper limit of the first counter.

[0317] The second threshold, which is used to indicate the upper limit of the second counter.

[0318] a third threshold, the third threshold being used to indicate a first timer timeout;

[0319] a fourth threshold, the fourth threshold being used to obtain a second out-of-sync indication based on a cell signal quality prediction result;

[0320] a fifth threshold, the fifth threshold being used to obtain a second in-sync indication based on the cell signal quality prediction result;

[0321] a sixth threshold, the sixth threshold being used to obtain a first out-of-sync indication based on a cell signal quality measurement result;

[0322] a seventh threshold, the seventh threshold being used to obtain a first in-sync indication based on the cell signal quality measurement result.

[0323] In some embodiments of the present application, the prediction information is obtained according to a plurality of prediction instances within the first window, and the processing module 1010 is specifically configured to:

[0324] determine whether there is at least one first instance group within the first window according to the prediction information, or the measurement information and the prediction information, wherein the first instance group contains N1 consecutive first instances, the first instance includes the first prediction instance, or the first instance includes the first measurement instance and the first prediction instance, or the first instance includes the first measurement instance;

[0325] if there is no second instance group within a first time length starting from a first processing time corresponding to a last first instance in the i1th first instance group, it is predicted that a radio link failure will occur in the target cell at the first time, wherein the second instance group contains M consecutive second instances, the second instance includes the second prediction instance, or the second instance includes the second measurement instance and the second prediction instance, or the second instance includes the second measurement instance;

[0326] if there is at least one second instance group within the first time length starting from the first processing time, it is predicted that a radio link failure will not occur in the target cell at the second time or within the first time period;

[0327] wherein N1 and M are positive integers;

[0328] the i1th first instance group is one of the at least one first instance group, i1 = 1, 2, …, K, and K represents the total number of the at least one first instance group;

[0329] the first time corresponds to an end time of the first time length corresponding to the i1th first instance group;

[0330] the second time corresponds to a processing time corresponding to a last second instance in a second instance group within the first time length starting from the first processing time;

[0331] The first time period corresponds to a time period from the second time point to the first time point.

[0332] In some embodiments of the present application, the processing module 1010 is further configured to:

[0333] In a case where the L consecutive first instance groups are determined, if there is no second instance group in a first time length starting from a second processing time point corresponding to a last first instance in an i2th first instance group and until a first time length starting from a third processing time point corresponding to a last first instance in an i3th first instance group, it is predicted that a radio link failure will occur in the target cell in a second time period;

[0334] If there is at least one second instance group in the first time length starting from the second processing time point and until the first time length starting from the third processing time point, it is predicted that a radio link failure will not occur in the target cell in a third time period or a fourth time period;

[0335] wherein the i2th first instance group and the i3th first instance group are one of the L consecutive first instance groups, and i3>i2;

[0336] The second time period corresponds to a time period from an end time point of the first time length corresponding to the i2th first instance group to an end time point of the first time length corresponding to the i3th first instance group;

[0337] The third time period corresponds to a processing time point corresponding to a last second instance in a first second instance group in the first time length starting from the second processing time point to a processing time point corresponding to a last second instance in the first time length starting from the third processing time point;

[0338] The fourth time period corresponds to a processing time point corresponding to a last second instance in the first second instance group in the first time length starting from the second processing time point to an end time point of the first time length starting from the third processing time point.

[0339] In some embodiments of the present application, a time length of the first window is greater than or equal to a first window length, and the first window length is a sum of a time length corresponding to N1 first instances and the first time length.

[0340] In some embodiments of the present application, the prediction information is obtained according to a plurality of prediction instances in a prediction window, and the processing module 1010 is specifically configured to:

[0341] In a case that the continuous N2 first measurement instances are obtained, according to the prediction information, if it is determined that there is no second prediction instance group in the first time length starting from the first measurement time, it is predicted that the wireless link failure will occur in the target cell at the third time, wherein the second prediction instance group contains the continuous M second prediction instances;

[0342] According to the prediction information, if it is determined that there is at least one second prediction instance group in the first time length starting from the first measurement time, it is predicted that the wireless link failure will not occur in the target cell at the fourth time or the fifth time period;

[0343] Wherein, N2 and M are positive integers.

[0344] The third time corresponds to the end time of the first time length corresponding to the continuous N2 first measurement instances.

[0345] The fourth time corresponds to the prediction time corresponding to the last second prediction instance in the second prediction instance group in the first time length starting from the first measurement time.

[0346] The fifth time period corresponds to the time period from the fourth time to the third time.

[0347] In some embodiments of the present application, the start time of the prediction window is the same as the first measurement time.

[0348] In some embodiments of the present application, the at least one first instance group includes two or more first instance groups, and at least one same first instance is contained between different first instance groups.

[0349] Or, the at least one second instance group includes two or more second instance groups, and at least one same second instance is contained between different second instance groups.

[0350] Or, the at least one second prediction instance group includes two or more second prediction instance groups, and at least one same second prediction instance is contained between different second prediction instance groups.

[0351] In some embodiments of the present application, the processing module 1010 is specifically configured to:

[0352] According to the prediction period, the prediction information of the target cell is determined.

[0353] In some embodiments of the present application, the processing module 1010 is specifically configured to:

[0354] According to the prediction information, the first counter and the second counter are maintained.

[0355] start the first timer and release the first counter when the first counter reaches the first threshold;

[0356] stop the first timer and predict that the radio link failure will not occur in the target cell at the fifth time point when the first timer does not time out and the second counter reaches the second threshold;

[0357] predict that the radio link failure will occur in the target cell at the sixth time point when the first timer times out and the second counter does not reach the second threshold;

[0358] wherein the first counter is configured to record the number of consecutive first prediction instances; the second counter is configured to record the number of consecutive second prediction instances; the fifth time point corresponds to the time point when the third counter reaches the fourth threshold; and the sixth time point corresponds to the time point when the first timer times out.

[0359] In some embodiments of the present application, the processing module 1010 is specifically configured to:

[0360] according to the order of the prediction time points corresponding to the prediction information, increment the value of the first counter by one each time a first prediction instance is determined, and reset the value of the first counter to zero each time a second prediction instance is determined;

[0361] when the first timer is started, according to the order of the prediction time points corresponding to the prediction information, increment the value of the second counter by one each time a second prediction instance is determined, and reset the value of the second counter to zero each time a first prediction instance is determined.

[0362] In some embodiments of the present application:

[0363] the first prediction instance corresponds to the second out-of-sync indication, or the cell signal quality prediction result of the first prediction instance is less than or equal to the fourth threshold; or the second prediction instance corresponds to the second in-sync indication, or the cell signal quality prediction result of the second prediction instance is greater than or equal to the fifth threshold; or the first measurement instance corresponds to the first out-of-sync indication, or the cell signal quality measurement result of the first measurement instance is less than or equal to the sixth threshold; or the second measurement instance corresponds to the first in-sync indication, or the cell signal quality measurement result of the second measurement instance is greater than or equal to the seventh threshold.

[0364] In some embodiments of the present application, the processing module 1010 is specifically configured to:

[0365] determine the prediction information of the target cell according to the measurement information of the target cell or the neighbor cell obtained within the observation window.

[0366] In some embodiments of the present application, the processing module 1010 is specifically configured to:

[0367] The terminal determines the prediction information of the target cell based on an artificial intelligence (AI) function or an AI unit.

[0368] In some embodiments of the present application, the processing module 1010 includes a first processing submodule deployed at a physical layer of the terminal and a second processing submodule deployed at a radio resource control layer of the terminal, wherein:

[0369] The first processing submodule is specifically configured to determine the prediction information of the target cell.

[0370] The second processing submodule is specifically configured to obtain the prediction information from the first processing submodule, or the measurement information and the prediction information.

[0371] According to the prediction information, or the measurement information and the prediction information, it is predicted whether a radio link failure will occur in the target cell.

[0372] In some embodiments of the present application, when the prediction information includes a cell signal quality prediction result, or the measurement information includes a cell signal quality measurement result, the second processing submodule is specifically configured to:

[0373] According to the cell signal quality prediction result, a second synchronization indication or a second out-of-sync indication is determined, or according to the cell signal quality measurement result, a first out-of-sync indication or a first synchronization indication is determined.

[0374] According to at least one of the second synchronization indication, the second out-of-sync indication, the first out-of-sync indication, or the first synchronization indication, it is predicted whether a radio link failure will occur in the target cell.

[0375] In some embodiments of the present application, the first processing submodule is further configured to:

[0376] When the prediction information of the target cell is determined according to a prediction period, the prediction information, or the measurement information and the prediction information, is indicated to the radio resource control layer of the terminal according to a first period.

[0377] The first period is the prediction period, or a radio link monitoring indication period, or a maximum value between the prediction period and the radio link monitoring indication period.

[0378] The radio link failure prediction apparatus provided by the embodiments of the present application can realize each process achieved by the method embodiments shown in FIGS. 4 to 9 and achieve the same technical effects. To avoid repetition, details are not described here.

[0379] As shown in FIG. 11, the embodiment of the present application further provides a communication device 1100, comprising a processor 1101 and a memory 1102, wherein the memory 1102 stores programs or instructions executable by the processor 1101, for example, when the communication device 1100 is a terminal, the programs or instructions are executed by the processor 1101 to implement each step of the above method embodiments and achieve the same technical effects. When the communication device 1100 is a network side device, the programs or instructions are executed by the processor 1101 to implement each step of the above method embodiments and achieve the same technical effects. To avoid repetition, details are not described herein.

[0380] The embodiment of the present application further provides a terminal, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute programs or instructions to implement steps in the above method embodiments. The terminal embodiment corresponds to the above terminal side method embodiments, each implementation process and implementation manner of the above method embodiments can be applied to the terminal embodiment and achieve the same technical effects. The terminal can be the wireless link failure prediction apparatus shown in FIG. 10. Specifically, FIG. 12 is a structural schematic diagram of a terminal implementing the embodiment of the present application.

[0381] The terminal 1200 includes, but is not limited to, at least part of the components such as a radio frequency unit 1201, a network module 1202, an audio output unit 1203, an input unit 1204, a sensor 1205, a display unit 1206, a user input unit 1207, an interface unit 1208, a memory 1209, and a processor 1210.

[0382] Those skilled in the art can understand that the terminal 1200 can further include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 1210 through a power management system, so as to realize functions such as power management, discharge management, and power consumption management through the power management system. The terminal structure shown in FIG. 12 does not constitute a limitation on the terminal, and the terminal can include more or fewer components than those shown, or combine certain components, or different component arrangements, which are not described herein.

[0383] It should be understood that in the embodiments of the present application, the input unit 1204 can include a graphics processor 12041 and a microphone 12042, and the graphics processor 12041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1206 can include a display panel 12061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 1207 includes at least one of a touch panel 12071 and other input devices 12072. The touch panel 12071 is also called a touch screen. The touch panel 12071 can include two parts of a touch detection device and a touch controller. The other input devices 12072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), a trackball, a mouse, a joystick, and the like, which will not be described here.

[0384] In the embodiments of the present application, after the radio frequency unit 1201 receives the downlink data from the network side device, it can be transmitted to the processor 1210 for processing. In addition, the radio frequency unit 1201 can send uplink data to the network side device. Generally, the radio frequency unit 1201 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0385] The memory 1209 can be used to store software programs or instructions and various data. The memory 1209 can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, application programs or instructions required by at least one function (such as a sound playing function, an image playing function, etc.), and the like. In addition, the memory 1209 can include a volatile memory or a non-volatile memory. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 1209 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0386] The processor 1210 can include one or more processing units; optionally, the processor 1210 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 1210.

[0387] The processor 1210 is configured to determine prediction information of the target cell.

[0388] According to the prediction information, or the measurement information and the prediction information, it is predicted whether a radio link failure will occur in the target cell.

[0389] The measurement information includes at least one of a cell signal quality measurement result, a first out-of-sync indication, and a first in-sync indication.

[0390] The prediction information comprises at least one of a cell signal quality prediction result, a second synchronization indication, and a second out-of-synchronization indication.

[0391] The first synchronization indication and the first out-of-synchronization indication are obtained based on a cell signal quality measurement result.

[0392] The second synchronization indication and the second out-of-synchronization indication are obtained based on a cell signal quality prediction result.

[0393] It can be understood that the implementation processes of the implementation manners mentioned in the embodiments can refer to the related descriptions of the method embodiments and achieve the same or corresponding technical effects. To avoid repetition, they will not be described here again.

[0394] The embodiments of the present application further provide a readable storage medium, which stores a program or instructions, and the program or instructions are executed by a processor to implement the processes of the above method embodiments and achieve the same technical effects. To avoid repetition, they will not be described here again.

[0395] The processor is the processor in the terminal in the above embodiments. The readable storage medium includes a computer readable storage medium, such as a computer readable only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. In some examples, the readable storage medium can be a non-transitory readable storage medium.

[0396] The embodiments of the present application further provide a chip, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run a program or instructions to implement the processes of the above method embodiments and achieve the same technical effects. To avoid repetition, they will not be described here again.

[0397] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system chip, a system chip, a chip system, or a system on chip, etc.

[0398] The embodiments of the present application further provide a computer program / program product, which is stored in a storage medium and is executed by at least one processor to implement the processes of the above method embodiments and achieve the same technical effects. To avoid repetition, they will not be described here again.

[0399] The embodiments of the present application further provide a wireless communication system, which includes a terminal and a network side device, the terminal can be used to execute the steps of the above method embodiments, and the network side device communicates with the terminal.

[0400] It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a", "comprising", or the like does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it is to be understood that the methods and apparatuses of the present application can be carried out by specific hardware, by software, or by a combination of hardware and software. It is therefore, contemplated to this patent to cover any and all modifications, variations, or equivalents that fall within the scope of the present application. Accordingly, where a concept can have been illustrated in only one of the exemplary embodiments, various aspects of the concept can be modified and / or combined to produce a variety of other embodiments that are not specifically illustrated. Thus, for purposes of describing particular embodiments, reference has been made to orientations. However, it should be understood that the described embodiments can be carried out in other orientations than those explicitly described without departing from the scope of the present application.

[0401] From the above description of the embodiments, it is apparent that the above-mentioned method can be realized by means of a computer software product and a general hardware platform, of course, it can also be realized by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disc, optical disc, etc.), and includes a plurality of instructions for making the terminal or network side device execute the method described in each embodiment of the present application.

[0402] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative, but not restrictive, and those skilled in the art can make many forms of embodiments under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A wireless link failure prediction method, wherein, The method comprises: a terminal determining prediction information of a target cell; the terminal predicting whether a radio link failure will occur in the target cell according to the prediction information, or measurement information and the prediction information; wherein the measurement information comprises at least one of a cell signal quality measurement result, a first synchronization indication, and a first out-of-sync indication; the prediction information comprises at least one of a cell signal quality prediction result, a second synchronization indication, and a second out-of-sync indication; the first synchronization indication and the first out-of-sync indication are obtained based on the cell signal quality measurement result; the second synchronization indication and the second out-of-sync indication are obtained based on the cell signal quality prediction result.

2. The method of claim 1, wherein, The terminal predicting whether a radio link failure will occur in the target cell according to the prediction information, or measurement information and the prediction information comprises: the terminal predicting whether a radio link failure will occur in the target cell according to the prediction information, or measurement information and the prediction information based on first information; wherein the first information comprises at least one of: observation window information; prediction window information; prediction period information; prediction instance information; prediction offset duration; a first time length; first window information; threshold information.

3. The method of claim 2, wherein, The observation window information comprises at least one of: a start time of an observation window; an end time of the observation window; a time length of the observation window; or, the prediction window information comprises at least one of: a start time of a prediction window; an end time of the prediction window; a time length of the prediction window; or, the prediction instance information comprises at least one of: a time interval of a prediction instance; a number of prediction instances; or, the first window information comprises at least one of: a start time of a first window; an end time of the first window; a time length of the first window; or, the threshold information comprises at least one of: a first threshold value, the first threshold value being used to indicate an upper limit of a first counter; a second threshold value, the second threshold value being used to indicate an upper limit of a second counter; a third threshold value, the third threshold value being used to indicate a timeout of a first timer; a fourth threshold value, the fourth threshold value being used to obtain a second out-of-sync indication based on a cell signal quality prediction result; a fifth threshold value, the fifth threshold value being used to obtain a second synchronization indication based on the cell signal quality prediction result; a sixth threshold value, the sixth threshold value being used to obtain a first out-of-sync indication based on a cell signal quality measurement result; a seventh threshold value, the seventh threshold value being used to obtain a first synchronization indication based on the cell signal quality measurement result.

4. The method according to any one of claims 1 to 3, wherein, The prediction information is obtained according to a plurality of prediction instances within a first window, and the terminal predicting whether a radio link failure will occur in the target cell according to the prediction information, or measurement information and the prediction information comprises: the terminal determining whether there is at least one first instance group within the first window according to the prediction information, or measurement information and the prediction information, wherein the first instance group contains N1 consecutive first instances, the first instance comprising a first prediction instance, or the first instance comprising a first measurement instance and a first prediction instance, or the first instance comprising a first measurement instance; The terminal predicts that a radio link failure will occur in the target cell at a first time if there is no second instance group in a first time length from a first processing time corresponding to a last first instance in an i1th first instance group, wherein the second instance group contains M consecutive second instances, the second instances include second prediction instances, or the second instances include second measurement instances and second prediction instances, or the second instances include second measurement instances, when it is determined that there is at least one first instance group. The terminal predicts that a radio link failure will not occur in the target cell in a second time or a first time period if there is at least one second instance group in the first time length from the first processing time. N1 and M are positive integers. The i1th first instance group is one of the at least one first instance group, i1=1, 2, …, K, and K represents a total number of the at least one first instance group. The first time corresponds to an end time of a first time length corresponding to the i1th first instance group. The second time corresponds to a processing time corresponding to a last second instance in a second instance group in the first time length from the first processing time. The first time period corresponds to from the second time to the first time.

5. The method of claim 4, wherein, The method further comprises: The terminal predicts that a radio link failure will occur in the target cell in a second time period if there is no second instance group in a first time length from a second processing time corresponding to a last first instance in an i2th first instance group and until there is no second instance group in a first time length from a third processing time corresponding to a last first instance in an i3th first instance group when it is determined that there are L consecutive first instance groups. The terminal predicts that a radio link failure will not occur in the target cell in a third time period or a fourth time period if there is at least one second instance group in the first time length from the second processing time and until there is at least one second instance group in the first time length from the third processing time. The i2th first instance group and the i3th first instance group are ones of the L consecutive first instance groups, i3>i2. The second time period corresponds to from an end time of a first time length corresponding to the i2th first instance group to an end time of a first time length corresponding to the i3th first instance group. The third time period corresponds to from a processing time corresponding to a last second instance in a first second instance group in the first time length from the second processing time to a processing time corresponding to a last second instance in the first time length from the third processing time. The fourth time period corresponds to from a processing time corresponding to a last second instance in the first second instance group in the first time length from the second processing time to an end time of the first time length from the third processing time.

6. The method of claim 4 or 5, wherein, The first window has a time length greater than or equal to a first window length, and the first window length is a sum of a time length corresponding to N1 first instances and the first time length.

7. The method according to any one of claims 1 to 3, wherein, The prediction information is obtained according to a plurality of prediction instances in a prediction window, and the terminal predicts whether a radio link failure will occur in the target cell according to the prediction information, including: The terminal, in a case where N2 consecutive first measurement instances are obtained, predicts, according to the prediction information, that a radio link failure will occur in the target cell at a third time if it is determined that there is no second prediction instance group in a first time length starting from a first measurement time corresponding to a last one of the N2 consecutive first measurement instances, wherein the second prediction instance group contains M consecutive second prediction instances; The terminal, according to the prediction information, predicts that a radio link failure will not occur in the target cell at a fourth time or in a fifth time period if it is determined that there is at least one second prediction instance group in the first time length starting from the first measurement time; N2 and M are positive integers; The third time corresponds to an end time of the first time length corresponding to the N2 consecutive first measurement instances; The fourth time corresponds to a prediction time corresponding to a last one of the second prediction instances in a second prediction instance group in the first time length starting from the first measurement time; The fifth time period corresponds to a time period from the fourth time to the third time.

8. The method of claim 7, wherein, The start time of the prediction window is the same as the first measurement time.

9. The method according to any one of claims 4 to 8, wherein, The at least one first instance group includes two or more first instance groups, and at least one same first instance is included between different first instance groups; Or, the at least one second instance group includes two or more second instance groups, and at least one same second instance is included between different second instance groups; Or, the at least one second prediction instance group includes two or more second prediction instance groups, and at least one same second prediction instance is included between different second prediction instance groups.

10. The method according to any one of claims 1 to 3, wherein, The terminal determines prediction information of a target cell, including: The terminal determines prediction information of a target cell according to a prediction period.

11. The method of claim 1 or 10, wherein, The terminal predicts whether a radio link failure will occur in the target cell according to the prediction information, including: The terminal maintains a first counter and a second counter according to the prediction information; The terminal starts a first timer and releases the first counter in a case where the first counter reaches a first threshold value; The terminal stops the first timer and predicts that a radio link failure will not occur in the target cell at a fifth time in a case where the first timer does not time out and the second counter reaches a second threshold value; The terminal predicts that a radio link failure will occur in the target cell at a sixth time in a case where the first timer times out and the second counter does not reach the second threshold value; The first counter is used to record a number of consecutive first prediction instances; The second counter is used to record a number of consecutive second prediction instances; The fifth time corresponds to a time when the second counter reaches the second threshold value; The sixth time corresponds to a time when the first timer expires.

12. The method of claim 11, wherein, The terminal maintains a first counter and a second counter according to the prediction information, including: The terminal increments the value of the first counter by one for each determined first prediction instance, and resets the value of the first counter to zero for each determined second prediction instance, according to the order of the prediction times corresponding to the prediction information. In the case where the first timer is started, the terminal increments the value of the second counter by one for each determined second prediction instance, and resets the value of the second counter to zero for each determined first prediction instance, according to the order of the prediction times corresponding to the prediction information.

13. The method of any of claims 1 to 12, wherein: The first prediction instance corresponds to the second out-of-sync indication, or a cell signal quality prediction result of the first prediction instance is less than or equal to a fourth threshold value; Or, the second prediction instance corresponds to the second in-sync indication, or a cell signal quality prediction result of the second prediction instance is greater than or equal to a fifth threshold value; Or, the first measurement instance corresponds to the first out-of-sync indication, or a cell signal quality measurement result of the first measurement instance is less than or equal to a sixth threshold value; Or, the second measurement instance corresponds to the first in-sync indication, or a cell signal quality measurement result of the second measurement instance is greater than or equal to a seventh threshold value.

14. The method according to any one of claims 1 to 13, wherein, The terminal determines prediction information of a target cell, including: The terminal determines the prediction information of the target cell according to measurement information of the target cell or a neighbor cell of the target cell obtained within an observation window.

15. The method according to any one of claims 1 to 14, wherein, The terminal determines prediction information of a target cell, including: The terminal determines the prediction information of the target cell based on an artificial intelligence (AI) function or an AI unit.

16. The method according to any one of claims 1 to 15, wherein, The terminal determines prediction information of a target cell, including: A physical layer of the terminal determines the prediction information of the target cell; The terminal predicts whether a radio link failure will occur in the target cell according to the prediction information, or measurement information and the prediction information, including: A radio resource control layer of the terminal obtains the prediction information, or measurement information and the prediction information, from a physical layer of the terminal; The radio resource control layer of the terminal predicts whether a radio link failure will occur in the target cell according to the prediction information, or the measurement information and the prediction information.

17. The method of claim 16, wherein, In the case where the prediction information includes a cell signal quality prediction result, or the measurement information includes a cell signal quality measurement result, the radio resource control layer of the terminal predicts whether a radio link failure will occur in the target cell according to the prediction information, or the measurement information and the prediction information, including: The radio resource control layer of the terminal determines a second in-sync indication or a second out-of-sync indication according to the cell signal quality prediction result, or determines a first out-of-sync indication or a first in-sync indication according to the cell signal quality measurement result; The radio resource control layer of the terminal predicts whether radio link failure will occur in the target cell according to at least one of the second synchronization indication, the second out-of-sync indication, the first out-of-sync indication, and the first synchronization indication.

18. The method of claim 16 or 17, wherein, In a case where the physical layer of the terminal determines the prediction information of the target cell according to the prediction period, the method further comprises: The physical layer of the terminal indicates the prediction information, or the measurement information and the prediction information, to the radio resource control layer of the terminal according to a first period; The first period is the prediction period, or a radio link monitoring indication period, or a maximum value between the prediction period and the radio link monitoring indication period.

19. A radio link failure prediction apparatus, wherein, Comprise: A processing module configured to determine prediction information of a target cell; The processing module is further configured to predict whether radio link failure will occur in the target cell according to the prediction information, or the measurement information and the prediction information; The measurement information comprises at least one of a cell signal quality measurement result, a first synchronization indication, and a first out-of-sync indication; The prediction information comprises at least one of a cell signal quality prediction result, a second synchronization indication, and a second out-of-sync indication; The first synchronization indication and the first out-of-sync indication are obtained based on the cell signal quality measurement result; The second synchronization indication and the second out-of-sync indication are obtained based on the cell signal quality prediction result.

20. The apparatus of claim 19, wherein, The prediction information is obtained according to a plurality of prediction instances within a first window, and the processing module is specifically configured to: Determine whether there is at least one first instance group within the first window according to the prediction information, or the measurement information and the prediction information, wherein the first instance group contains N1 consecutive first instances, the first instance includes a first prediction instance, or the first instance includes a first measurement instance and a first prediction instance, or the first instance includes a first measurement instance; In a case where it is determined that there is at least one first instance group, if there is no second instance group within a first time length starting from a first processing time corresponding to a last first instance in an i1th first instance group, it is predicted that radio link failure will occur in the target cell at a first time; wherein the second instance group contains M consecutive second instances, the second instance includes a second prediction instance, or the second instance includes a second measurement instance and a second prediction instance, or the second instance includes a second measurement instance; If there is at least one second instance group within the first time length starting from the first processing time, it is predicted that radio link failure will not occur in the target cell at a second time or within a first time period; N1 and M are positive integers; The i1th first instance group is one of the at least one first instance group, i1=1, 2, …, K, and K represents the total number of the at least one first instance group; The first time corresponds to an end time of a first time length corresponding to the i1th first instance group; The second time corresponds to a processing time corresponding to a last second instance in a second instance group within the first time length starting from the first processing time; The first time period corresponds to a time period from the second time point to the first time point.

21. The apparatus of claim 20, wherein, The processing module is further configured to: In a case where the continuous L first instance groups are determined, if there is no second instance group in a first time length starting from a second processing time point corresponding to a last first instance in an i2th first instance group and until a first time length starting from a third processing time point corresponding to a last first instance in an i3th first instance group, it is predicted that a radio link failure will occur in the target cell in a second time period; If there is at least one second instance group in the first time length starting from the second processing time point and until the first time length starting from the third processing time point, it is predicted that a radio link failure will not occur in the target cell in a third time period or a fourth time period; The i2th first instance group and the i3th first instance group are one of the continuous L first instance groups, and i3>i2; The second time period corresponds to a time period from an end time point of a first time length corresponding to the i2th first instance group to an end time point of a first time length corresponding to the i3th first instance group; The third time period corresponds to a processing time point corresponding to a last second instance in a first second instance group in the first time length starting from the second processing time point to a processing time point corresponding to a last second instance in the first time length starting from the third processing time point; The fourth time period corresponds to a processing time point corresponding to a last second instance in the first second instance group in the first time length starting from the second processing time point to an end time point of the first time length starting from the third processing time point.

22. The apparatus of claim 19, wherein, The prediction information is obtained according to a plurality of prediction instances in a prediction window, and the processing module is specifically configured to: In a case where the continuous N2 first measurement instances are obtained, according to the prediction information, if it is determined that there is no second prediction instance group in a first time length starting from a first measurement time point corresponding to a last first measurement instance in the continuous N2 first measurement instances, it is predicted that a radio link failure will occur in the target cell at a third time point, wherein the second prediction instance group includes continuous M second prediction instances; According to the prediction information, if it is determined that there is at least one second prediction instance group in the first time length starting from the first measurement time point, it is predicted that a radio link failure will not occur in the target cell in a fourth time point or a fifth time period; N2 and M are positive integers; The third time point corresponds to an end time point of a first time length corresponding to the continuous N2 first measurement instances; The fourth time point corresponds to a prediction time point corresponding to a last second prediction instance in a second prediction instance group in the first time length starting from the first measurement time point; The fifth time period corresponds to a time period from the fourth time point to the third time point.

23. The apparatus of claim 19, wherein, The processing module is specifically configured to: Determine prediction information of a target cell according to a prediction period.

24. The apparatus of claim 19 or 23, wherein, The processing module is specifically configured to: According to the prediction information, a first counter and a second counter are maintained; In a case where the first counter reaches a first threshold, a first timer is started, and the first counter is released; In a case where the first timer does not time out and the second counter reaches a second threshold, the first timer is stopped, and it is predicted that a radio link failure will not occur in the target cell at a fifth time; In a case where the first timer times out and the second counter does not reach the second threshold, it is predicted that a radio link failure will occur in the target cell at a sixth time; The first counter is configured to record a number of continuous first prediction instances; The second counter is configured to record a number of continuous second prediction instances; The fifth time corresponds to a time when the second counter reaches the second threshold; The sixth time corresponds to a time when the first timer times out.

25. The apparatus of any of claims 19 to 24, wherein, The processing module is specifically configured to: determine prediction information of a target cell based on an artificial intelligence (AI) function or an AI unit.

26. The apparatus of any of claims 19 to 25, wherein, The processing module includes a first processing submodule deployed at a physical layer of a terminal and a second processing submodule deployed at a radio resource control layer of the terminal, and wherein: The first processing submodule is specifically configured to determine the prediction information of the target cell; The second processing submodule is specifically configured to obtain the prediction information from the first processing submodule, or measurement information and the prediction information; determine whether a radio link failure will occur in the target cell according to the prediction information, or the measurement information and the prediction information.

27. The apparatus of claim 26, wherein, In a case where the prediction information includes a cell signal quality prediction result, or the measurement information includes a cell signal quality measurement result, the second processing submodule is specifically configured to: determine a second synchronization indication or a second out-of-sync indication according to the cell signal quality prediction result, or determine a first out-of-sync indication or a first synchronization indication according to the cell signal quality measurement result; determine whether a radio link failure will occur in the target cell according to at least one of the second synchronization indication, the second out-of-sync indication, the first out-of-sync indication, or the first synchronization indication.

28. A terminal, wherein, A processor and a memory are included, the memory stores programs or instructions executable on the processor, and the programs or instructions are executed by the processor to implement steps of the radio link failure prediction method according to any one of claims 1 to 18.

29. A readable storage medium, wherein, Programs or instructions are stored on the readable storage medium, and the programs or instructions are executed by the processor to implement steps of the radio link failure prediction method according to any one of claims 1 to 18.

30. A chip, wherein, The chip includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is configured to run programs or instructions to implement steps of the radio link failure prediction method according to any one of claims 1 to 18.

31. A computer program product, wherein, The program product is stored in a non-volatile storage medium, and the program product is executed by at least one processor to implement steps of the radio link failure prediction method according to any one of claims 1 to 18.

32. An electronic device, comprising: The device is configured to perform the radio link failure prediction method as claimed in any of claims 1 to 18. The device is configured to perform the radio link failure prediction method as claimed in any of claims 1 to 18.

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