Cell selection method, terminal, communication system, and storage medium

Abstract

The present disclosure relates to a cell selection method, a terminal, a communication system, and a storage medium. The method comprises: on the basis of a cell measurement result and an artificial intelligence (AI) prediction result, a terminal determining a target cell satisfying a condition; and initiating a connection establishment procedure to the target cell satisfying the condition. In the present disclosure, in the process of determining a target cell, by comprehensively considering the cell measurement result and the AI prediction result, the terminal determines the target cell satisfying the condition and initiates connection establishment to the target cell, thereby increasing the success probability of a terminal establishing a connection to a cell.

Description

Cell selection method, terminal, communication system and storage medium Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a cell selection method, a terminal, a communication system, and a storage medium. Background Art

[0002] Machine learning algorithms are one of the most important implementation methods of artificial intelligence (AI) technology. Machine learning uses large amounts of training data to generate AI models, which can then be used to predict events. In many fields, AI models trained by machine learning can achieve relatively accurate predictions.

[0003] Summary of the Invention

[0004] How to improve the success probability of establishing a cell connection at a terminal.

[0005] The embodiments of the present disclosure provide a cell selection method, a terminal, a communication system, and a storage medium.

[0006] According to a first aspect of an embodiment of the present disclosure, a cell selection method is proposed, comprising: a terminal determining a target cell that meets conditions based on cell measurement results and prediction results of artificial intelligence (AI); and initiating a connection establishment process to the target cell that meets the conditions.

[0007] According to a second aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: a processing module for determining a target cell that meets the conditions based on cell measurement results and prediction results of artificial intelligence (AI); and a transceiver module for initiating a connection establishment process to the target cell that meets the conditions.

[0008] According to a third aspect of an embodiment of the present disclosure, a terminal is proposed, comprising: one or more processors; wherein the terminal is configured to execute the first aspect and any one of the cell selection methods in the first aspect.

[0009] According to a fourth aspect of an embodiment of the present disclosure, a communication system is proposed, including a terminal, wherein the terminal is configured to implement the first aspect and any one of the cell selection methods in the first aspect.

[0010] According to a fifth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the cell selection method as in the first aspect and any one of the first aspects.

[0011] According to a sixth aspect of an embodiment of the present disclosure, a computer program product is proposed, including a computer program. When the computer program runs on a communication device, the communication device executes the cell selection method as described in the first aspect and any one of the first aspects.

[0012] In the process of determining the target cell, the terminal comprehensively considers the cell measurement results and the AI ​​prediction results, thereby determining the target cell that meets the conditions and initiating connection establishment to the target cell, thereby improving the success probability of the terminal initiating the connection establishment process to the cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following drawings required for describing the embodiments are introduced. The following drawings are merely some embodiments of the present disclosure and do not impose specific limitations on the protection scope of the present disclosure.

[0014] FIG1A is a schematic diagram showing a communication system architecture according to an embodiment of the present disclosure.

[0015] FIG1B is a schematic diagram showing RRC reestablishment interaction according to an embodiment of the present disclosure.

[0016] FIG2 is a schematic diagram of a cell selection method according to an embodiment of the present disclosure.

[0017] FIG3A is a schematic flow chart of a cell selection method according to an embodiment of the present disclosure.

[0018] FIG3B is a schematic flow chart of a cell selection method according to an embodiment of the present disclosure.

[0019] FIG4 is a schematic flow chart of a cell selection method according to an embodiment of the present disclosure.

[0020] FIG5A is a schematic structural diagram of a terminal proposed in an embodiment of the present disclosure.

[0021] FIG5B is a schematic diagram of the structure of the network device proposed in an embodiment of the present disclosure.

[0022] FIG6A is a schematic structural diagram of a communication device proposed in an embodiment of the present disclosure.

[0023] FIG6B is a schematic diagram of the structure of a chip proposed in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0024] The embodiments of the present disclosure provide a cell selection method, a terminal, a communication system, and a storage medium.

[0025] In a first aspect, an embodiment of the present disclosure proposes a cell selection method, which includes: a terminal determines a target cell that meets the conditions based on cell measurement results and prediction results of artificial intelligence AI; and initiates a connection establishment process to the target cell that meets the conditions.

[0026] In the above embodiment, when determining the target cell, the terminal comprehensively considers the cell measurement results and the AI ​​prediction results, thereby determining a target cell that meets the conditions and initiating the RRC reestablishment process with the target cell. Compared to determining the target cell based solely on the cell measurement results, the method that combines the AI ​​prediction results with the target cell can predict the future link communication results between the cell and the terminal. Therefore, the method that combines the AI ​​prediction results with the target cell can find a cell with a more stable communication link with the terminal as the target cell. This thereby improves the success rate of the terminal initiating cell reestablishment.

[0027] In combination with some embodiments of the first aspect, in some embodiments, the prediction result of AI includes at least one of the following: whether the terminal will experience wireless link failure in the target cell; the terminal's residence time in the target cell; and the channel state of the target cell in the future.

[0028] In the above embodiment, the AI-based prediction results can be used to determine the communication connection status between the terminal and the target cell over a period of time in the future, and thus determine whether the cell predicted by the AI ​​is a target cell that meets the conditions. This allows the terminal to select a target cell that meets the conditions based on the AI ​​prediction results, thereby increasing the terminal's probability of successfully establishing a cell connection.

[0029] In combination with some embodiments of the first aspect, in some embodiments, the conditions satisfied by the target cell include at least one of the following: the terminal will not experience a wireless link failure in the target cell; the target cell will not experience a wireless link failure within a first time period in the future, and the first time period is greater than or equal to a first time period threshold; the terminal's stay time in the target cell is greater than or equal to a second time period threshold; the target cell's channel state in the future is higher than the first state threshold.

[0030] In the above embodiment, by clarifying the definition of cells that meet the conditions, the terminal can determine the target cell that meets the conditions based on the AI ​​prediction result.

[0031] In combination with some embodiments of the first aspect, in some embodiments, the wireless channel measurement result of the target cell is higher than a first result threshold, and the wireless channel measurement result includes a measurement result of at least one of the following: RSRP; RSRQ; SINR.

[0032] In combination with some embodiments of the first aspect, in some embodiments, if it is determined that there is no target cell that meets the conditions, the terminal enters an idle state.

[0033] In the above embodiment, the terminal is prevented from continuously initiating a connection establishment process for a cell that does not meet the conditions, thereby causing resource overhead due to connection establishment failure.

[0034] In combination with some embodiments of the first aspect, in some embodiments, when the first condition is met, the terminal determines a target cell that meets the conditions based on the cell measurement results and the prediction results of the AI, and the first condition is met. At least one of the following items is included: the terminal fails to connect; the terminal establishes a connection; the terminal reestablishes a connection.

[0035] In combination with some embodiments of the first aspect, in some embodiments, the dwell time is the duration between the terminal establishing a connection with the target cell and the terminal leaving the target cell.

[0036] In combination with some embodiments of the first aspect, in some embodiments, the terminal leaves the target cell, including at least one of the following: the target cell of the terminal is switched; the serving cell of the terminal is changed; the terminal selects a cell; the terminal reselects a cell.

[0037] In combination with some embodiments of the first aspect, in some embodiments, the channel state may be any one of the following: an average value of the channel state of the target cell within the third time period; or a minimum value of the channel state of the target cell within the fourth time period.

[0038] In a second aspect, a terminal is provided, including: a processing module for determining a target cell that meets the conditions based on the cell measurement results and the prediction results of artificial intelligence AI; and a transceiver module for initiating a connection establishment process to the target cell that meets the conditions.

[0039] In combination with some embodiments of the second aspect, in some embodiments, the prediction result of AI includes at least one of the following: whether the terminal will experience wireless link failure in the target cell; the terminal's residence time in the target cell; and the target cell's channel state in the future.

[0040] In combination with some embodiments of the second aspect, in some embodiments, the conditions satisfied by the target cell include at least one of the following: the terminal will not experience a wireless link failure in the target cell; the target cell will not experience a wireless link failure within a first time period in the future, and the first time period is greater than or equal to a first time period threshold; the terminal's stay time in the target cell is greater than or equal to a second time period threshold; the target cell's channel state in the future is higher than the first state threshold.

[0041] In combination with some embodiments of the second aspect, in some embodiments, the wireless channel measurement result of the target cell is higher than the first result threshold, and the wireless channel measurement result includes a measurement result of at least one of the following: RSRP; RSRQ; SINR.

[0042] In combination with some embodiments of the second aspect, in some embodiments, when the determination module determines that there is no target cell that meets the conditions, the terminal enters an idle state.

[0043] In combination with some embodiments of the second aspect, in some embodiments, when the first condition is met, the terminal determines a target cell that meets the conditions based on the cell measurement results and the prediction results of the AI, and meeting the first condition includes at least one of the following: the terminal fails to connect; the terminal establishes a connection; the terminal reestablishes a connection.

[0044] In combination with some embodiments of the second aspect, in some embodiments, the dwell time is the duration between the terminal establishing a connection with the target cell and the terminal leaving the target cell.

[0045] In combination with some embodiments of the second aspect, in some embodiments, the terminal leaves the target cell, including at least one of the following: the target cell of the terminal is switched; the serving cell of the terminal is changed; the terminal selects a cell; the terminal reselects a cell.

[0046] In combination with some embodiments of the second aspect, in some embodiments, the channel state may be any one of the following: an average value of the channel state of the target cell within the third time period; or a minimum value of the channel state of the target cell within the fourth time period.

[0047] In a third aspect, a terminal is provided, comprising: one or more processors; wherein the terminal is configured to execute the first aspect and any one of the cell selection methods in the first aspect.

[0048] In a fourth aspect, a communication system is provided, comprising a terminal, wherein the terminal is configured to implement the first aspect and any one of the cell selection methods in the first aspect.

[0049] In a fifth aspect, a storage medium is provided, wherein the storage medium stores instructions. When the instructions are executed on a communication device, the communication device executes the cell selection method as in the first aspect and any one of the first aspects.

[0050] In a sixth aspect, an embodiment of the present disclosure proposes a computer program product, including a computer program. When the above-mentioned computer program product is executed by a communication device, the above-mentioned communication device executes the method described in any optional implementation method in the first aspect.

[0051] In a seventh aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the optional implementation manner of the first aspect.

[0052] In an eighth aspect, an embodiment of the present disclosure provides a chip or a chip system, which includes a processing circuit configured to execute the method described in the optional implementation of the first aspect.

[0053] It is understandable that the terminal, access network device, first network element, other network elements, core network device, communication system, storage medium, program product, computer program, chip, or chip system involved in each embodiment of the present disclosure are all used to perform the method proposed in the embodiment of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding method and will not be repeated here.

[0054] The present disclosure provides communication methods, devices, equipment, and storage media. In some embodiments, the terms "communication method," "information processing method," and "communication method" are interchangeable; the terms "communication device," "information processing device," and "communication device" are interchangeable; and the terms "information processing system," "communication system," and "communication system" are interchangeable.

[0055] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0056] In each embodiment of the present disclosure, unless otherwise specified or provided for, the terms and / or descriptions between the embodiments are consistent and may be referenced by each other. The technical environments in different embodiments may be combined to form new embodiments based on their inherent logical relationships.

[0057] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0058] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0059] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0060] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0061] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0062] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0063] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for example, if the description object is "information", then the "first information" and "the performance of each AI model" can be the same information or different information, and their contents can be the same or different.

[0064] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0065] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0066] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0067] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0068] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0069] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0070] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0071] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0072] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0073] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0074] FIG1A is a schematic diagram showing a communication system architecture according to an embodiment of the present disclosure.

[0075] As shown in FIG. 1A , a communication system 100 includes a terminal 101 and a network device 102 .

[0076] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0077] In some embodiments, the network device 102 may include at least one of an access network device and a core network device.

[0078] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0079] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0080] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0081] In some embodiments, a core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0082] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0083] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1A , or a portion thereof, but are not limited thereto. The entities shown in FIG1A are illustrative only. The communication system may include all or part of the entities shown in FIG1A , or may include other entities other than those shown in FIG1A . The number and form of the entities may be arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0084] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0085] Machine learning algorithms are one of the most important implementation methods of artificial intelligence (AI) technology. Machine learning uses large amounts of training data to generate AI models, which can then be used to predict events. In many fields, AI models trained by machine learning can achieve relatively accurate predictions.

[0086] In some embodiments, such as in the field of communications technology, the AI ​​model is trained using data related to cell switching so that the AI ​​model can predict the possible results of switching to a certain cell based on the network environment of the terminal (for example, the probability of successful switching, the probability of failed switching, or the probability of wireless link failure, etc.).

[0087] In some embodiments, such as the field of communications technology, an AI model may also be used to predict cell dwell time.

[0088] It is understandable that when a handover failure or a radio link failure occurs in the terminal (ie, the terminal does not have a communication connection relationship with the network device), the terminal will trigger a radio resource control (RRC) re-establishment process.

[0089] FIG1B is a schematic diagram of an RRC reestablishment interaction according to an embodiment of the present disclosure. As shown in FIG1B , the RRC reestablishment process may generally include the following steps:

[0090] In some embodiments, the terminal will first perform cell selection and select a cell that meets the requirements as the target cell for initiating the RRC re-establishment process.

[0091] For example, the terminal selects a cell that meets preset requirements as a second cell based on the radio channel measurement result of the cell.

[0092] In some embodiments, the terminal sends an RRC Reestablishment Request message to the target cell and starts a T301 timer. If the terminal receives an RRC Reestablishment message from the target cell within a specified time, the terminal performs RRC reestablishment. If the terminal does not receive an RRC Reestablishment message from the target cell within the specified time, the terminal determines that the RRC reestablishment has failed.

[0093] Optionally, after completing the RRC reestablishment, the terminal sends an RRC reestablishment completion message (RRC Reestablishment Complete) to the network device.

[0094] However, if only the radio channel condition is considered when the terminal selects the target cell during the reestablishment process, the terminal may experience radio link failure after reestablishing to the target cell, resulting in reestablishment failure. Alternatively, the terminal may switch to another cell within a short period of time after reestablishing to the target cell, resulting in reestablishment failure.

[0095] FIG2 is a schematic diagram of a cell selection method according to an embodiment of the present disclosure. As shown in FIG2 , the present disclosure embodiment relates to a cell selection method, which is applied to a terminal. The method includes:

[0096] Step S2101 , the network device 102 sends first information to the terminal 101 .

[0097] In some embodiments, terminal 101 obtains first information.

[0098] In some embodiments, the first information is configuration information, which is used to configure the first parameter to the terminal 101.

[0099] It is understandable that, in the process of determining a target cell that meets the conditions, the terminal 101 needs to perform corresponding screening from the acquired target cells and determine a target cell that meets the conditions from multiple target cells.

[0100] In some embodiments, the network device 102 configures a first parameter to the terminal 101 based on the first information, so that the terminal 101 can determine a target cell that meets the conditions based on the first parameter. For example, the network device 102 configures a threshold parameter (such as a reference signal quality threshold, a duration threshold, etc.) to the terminal 101, and the terminal 101 compares the obtained results (such as measurement results and / or AI prediction results, etc.) with the corresponding threshold to determine the target cell that meets the conditions.

[0101] Exemplarily, the first parameter is, for example, a reference signal quality threshold (e.g., a reference signal receiving power threshold). If the reference signal receiving power obtained by measurement by the terminal 101 meets the requirements of the reference signal quality threshold, the target cell corresponding to the reference signal receiving power that meets the threshold requirements is determined as the target cell that meets the conditions.

[0102] Exemplarily, the first parameter is, for example, a duration threshold (such as a residence time threshold predicted by AI). If the duration of the terminal's stay in the target cell obtained by AI prediction meets the requirements of the duration threshold, the target cell corresponding to the residence time that meets the threshold requirements is determined as the target cell that meets the conditions.

[0103] Step S2102: determine a target cell that meets the conditions and initiate a connection establishment process.

[0104] In some embodiments, the terminal 101 determines a target cell that meets the conditions based on the cell measurement results and the prediction results of the AI; the terminal 101 initiates a connection establishment process to the target cell that meets the conditions.

[0105] In some embodiments, the terms "establishing a connection" and "connection establishment" can be used interchangeably.

[0106] In some embodiments, the terminal 101 establishes a connection to a target cell that meets the conditions, for example, the terminal 101 initiates a connection establishment process to the target cell that meets the conditions through RRC.

[0107] In some embodiments, the terms "initiate a connection establishment process through RRC", "reestablish based on RRC", "RRC reestablishment", "establish a connection through RRC", etc. can be used interchangeably.

[0108] It is understandable that, for ease of understanding and description, the following embodiments will be described by taking the example of the terminal 101 establishing a connection to a target cell that meets the conditions through RRC.

[0109] It is understandable that in the relevant technology, in the scenario where the terminal performs RRC reconstruction of the cell, the terminal can determine the cell that currently meets the conditions based on the current measurement results. However, in the subsequent RRC reconstruction process of the terminal, there may be two situations: the first: the cell still meets the conditions, and the terminal uses the cell as the target cell for RRC reconstruction. The second: the communication link corresponding to the cell becomes unsuitable for the terminal to perform RRC reconstruction over time. During the process of the terminal initiating RRC reconstruction, or for a period of time after the terminal and the cell complete the RRC reconstruction process, the terminal is disconnected from the cell. Obviously, for the second case, the RRC reconstruction process of the terminal fails. If the terminal wants to make the RRC reconstruction process successful, it still needs to determine the cell that meets the conditions again in the same mode (that is, based on the terminal measurement results), and then initiate the RRC reconstruction process to the cell. This undoubtedly causes a lot of resource overhead.

[0110] In the embodiment of the present disclosure, in the process of determining the target cell, the terminal 101 comprehensively considers the cell measurement results and the AI ​​prediction results, thereby determining the target cell that meets the conditions and initiating the RRC reestablishment process to the target cell. Compared with determining the target cell based solely on the cell measurement results, the method of determining the target cell based on the AI ​​prediction results can predict the future link communication results between the cell and the terminal 101. Therefore, the method of determining the target cell based on the AI ​​prediction results can find a cell with a more stable communication link with the terminal 101 as the target cell. This improves the success rate of the terminal 101 initiating RRC reestablishment.

[0111] In some embodiments, the AI ​​is deployed on the terminal 101 side, that is, the terminal 101 can independently make predictions based on the AI.

[0112] In some embodiments, when the first condition is met, the terminal 101 determines a target cell that meets the conditions based on the cell measurement results and the prediction results of the AI, wherein the first condition is met, which may be the condition that the terminal 101 is not currently connected to the network device, for example, including at least one of the following: a connection failure occurs on the terminal 101 (for example, the process of the terminal 101 accessing the cell fails, etc.); a connection is established on the terminal 101 (for example, the process of the terminal 101 initiating access to the cell, etc.); a connection is reestablished on the terminal 101 (for example, the process of the terminal 101 reestablishing the connection with the cell, etc.).

[0113] It is understandable that if the terminal 101 is communicating normally with the network device (for example, the communication link between the terminal 101 and the network device is stable and no cell switching or other processing is required), the terminal 101 does not need to select a cell. When the terminal 101 is not currently connected to the network device (for example, one or more of the above conditions), the terminal 101 determines a target cell that meets the conditions and establishes a connection to the target cell (that is, when the first condition is met, the above step S2101 and / or step S2102 are executed).

[0114] In some embodiments, the prediction result of the AI ​​includes at least one of the following: whether a radio link failure will occur in the target cell for the terminal 101; the residence time of the terminal 101 in the target cell; and the channel status of the target cell in the future.

[0115] It can be understood that through the prediction results of AI, it can be known whether the cell can become a target cell that meets the conditions in a period of time in the future (for example, a period of time when terminal 101 establishes a communication connection with the cell, or a period of time after terminal 101 obtains the cell measurement results, etc.).

[0116] In some embodiments, the prediction result output by the AI ​​may be configured by the network device 102. For example, the network device 102 may indirectly indicate, by configuring a first parameter for the terminal 101, that the prediction result output by the AI ​​is one or more of whether a radio link failure will occur in the target cell, the dwell time in the target cell, or the future channel state.

[0117] Illustratively, if a cell satisfies any one of the following conditions -a) to -d), it can be regarded as a target cell that meets the conditions.

[0118] -a) If the AI ​​prediction result is that the terminal 101 will not experience a radio link failure in the target cell, then the cell will be considered as a target cell that meets the conditions.

[0119] -b) If the AI ​​prediction result is that the target cell will not experience a radio link failure within a first time period in the future, then the cell will be considered a target cell that meets the conditions, where the first time period is greater than or equal to the first time period threshold.

[0120] -c) If the AI ​​prediction result is that the terminal 101 stays in the target cell for a duration greater than or equal to the second duration threshold, the cell will be considered as a target cell that meets the conditions.

[0121] -d) If the AI ​​prediction result is that the channel state of the target cell in the future is higher than the first state threshold, then the cell will be considered as a target cell that meets the conditions.

[0122] It can be understood that, according to -a) to -d) above, it can be obtained that the conditions satisfied by the target cell include at least one of the following:

[0123] -1) The terminal will not experience radio link failure in the target cell.

[0124] -2) The target cell will not experience a radio link failure within a first time period in the future, and the first time period is greater than or equal to a first time period threshold.

[0125] -3) The duration of the terminal's stay in the target cell is greater than or equal to the second duration threshold.

[0126] -4) The channel status of the target cell in the future is higher than the first status threshold.

[0127] In some embodiments, parameters such as the first state threshold, the first duration threshold, and the second duration threshold may be configured through a network device or obtained based on default rules.

[0128] It should be noted that the channel state in -d) can be represented by at least one of the following: reference signal received power (RSRP); reference signal received quality (RSRQ); signal to interference plus noise ratio (SINR), or other parameters and representations that can be used to represent channel state information.

[0129] Exemplarily, it may be an average value of the channel status of the target cell (eg, RSRQ corresponding to the target cell) within a period of time (eg, the third period of time).

[0130] It may also be the minimum value of the target cell channel state (for example, the RSRP corresponding to the target cell) within a period of time (for example, the fourth period of time, where the fourth period of time may be the third period of time or may not be the third period of time).

[0131] It is understandable that the third duration and / or the fourth duration may also be configured through the network device or obtained based on default rules.

[0132] It should be noted that the dwell time may be understood as the duration between when the terminal 101 establishes a connection with the target cell and when the terminal 101 leaves the target cell (ie, disconnects from the cell).

[0133] Optionally, the terminal 101 leaving the target cell may include at least one of the following situations: the target cell of the terminal 101 is switched; the serving cell of the terminal 101 is changed; the terminal 101 selects a cell; the terminal 101 reselects a cell.

[0134] In some embodiments, the target cell that meets the conditions can be regarded as a cell whose wireless channel measurement result is higher than the first result threshold, wherein the wireless channel measurement result includes at least one of the following measurement results: reference signal received power (RSRP); reference signal received quality (RSRQ); signal-to-noise and interference ratio (SINR).

[0135] It is understandable that for different measurement items, the corresponding result thresholds may be the same or different. For example, the first RSRP result threshold corresponding to RSRP and the first RSRQ result threshold corresponding to RSRQ are independently set and may be the same or different in value.

[0136] In some embodiments, if the terminal 101 determines that there is no cell that meets the conditions, the terminal 101 enters an idle (Idel) state.

[0137] In some embodiments, the names of information, etc. are not limited to the names described in the embodiments, and terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codeword", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0138] In some embodiments, terms such as "moment", "time point", "time", and "time position" can be replaced with each other, and terms such as "duration", "period", "time window", "window", and "time" can be replaced with each other.

[0139] In some embodiments, the terms "component carrier (CC)", "cell", "frequency carrier", "carrier frequency" and the like can be used interchangeably.

[0140] In some embodiments, "obtain", "get", "get", "receive", "transmit", "bidirectional transmission", "send and / or receive" can be interchangeable, and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining by self-processing, autonomous implementation, etc.

[0141] In some embodiments, terms such as "send", "transmit", "report", "download", "transmit", "bidirectional transmission", "send and / or receive" can be used interchangeably.

[0142] In some embodiments, terms such as "certain", "preset", "preset", "setting", "indicated", "a certain", "any", and "first" can be interchangeable. "Specific A", "preset A", "preset A", "setting A", "indicated A", "a certain A", "any A", and "first A" can be interpreted as A pre-specified in a protocol, etc., or as A obtained through setting, configuration, or indication, etc., or as specific A, a certain A, any A, or first A, etc., but not limited to this.

[0143] The cell selection method involved in the embodiments of the present disclosure may include at least one of steps S2101 and S2102. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, and step S2101 + step S2102 may be implemented as independent embodiments, but the present disclosure is not limited thereto.

[0144] In some embodiments, step S2101 and step S2102 may be executed in an interchanged order or simultaneously.

[0145] In some embodiments, step S2101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0146] FIG3A is a flow chart of a cell selection method according to an embodiment of the present disclosure. As shown in FIG3A , the embodiment of the present disclosure relates to a cell selection method, which includes:

[0147] Step S3101, obtain first information.

[0148] The optional implementation of step S3101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0149] In some embodiments, terminal 101 receives first information sent by network device 102. The first information is used to configure first parameters so that terminal 101 can determine a target cell that meets the conditions based on the cell measurement results and the AI ​​prediction results. However, the present invention is not limited thereto, and first information sent by other entities may also be received.

[0150] It should be noted that the relevant content of the first parameter has been described in step S2101. For the relevant description of the first parameter, please refer to the relevant embodiment and will not be repeated here.

[0151] In some embodiments, terminal 101 obtains first information specified by a protocol.

[0152] In some embodiments, terminal 101 obtains the first information from upper layer(s).

[0153] In some embodiments, the terminal 101 performs processing to obtain the first information.

[0154] In some embodiments, step S3101 is omitted, and the terminal 101 autonomously implements the function indicated by the first parameter, or the above function is default or by default.

[0155] Step S3102: determine a target cell that meets the conditions and initiate a connection establishment process.

[0156] The optional implementation of step S3102 can refer to the optional implementation of step S2102 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0157] In some embodiments, when a connection failure occurs in the terminal, a target cell that meets the conditions is determined and a connection establishment process is initiated.

[0158] In some embodiments, after the connection reestablishment process is initiated, the terminal determines a target cell that meets the conditions and initiates a connection establishment process.

[0159] The cell selection method involved in the embodiments of the present disclosure may include at least one of steps S3101 and S3102. For example, step S3101 may be implemented as an independent embodiment, step S3102 may be implemented as an independent embodiment, and step S3101 + step S3102 may be implemented as independent embodiments, but the present invention is not limited thereto.

[0160] In some embodiments, step S3101 and step S3102 may be executed in an interchanged order or simultaneously.

[0161] In some embodiments, step S3101 is optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0162] FIG3B is a flow chart of a cell selection method according to an embodiment of the present disclosure. As shown in FIG3B , the embodiment of the present disclosure relates to a cell selection method, which includes:

[0163] In step S3201, the terminal determines a cell that meets the conditions based on the cell measurement results and the AI ​​prediction results.

[0164] In some embodiments, the optional implementation of step S3201 can refer to step S2102 in Figure 2, step S3101 in Figure 3A, the optional implementation of step S3201, and other related parts in the embodiments involved in Figures 2, 3A and 3B, which will not be repeated here.

[0165] Step S3202: The terminal initiates a connection establishment process to a target cell that meets the conditions.

[0166] In some embodiments, the optional implementation of step S3202 can be found in step S2102 of Figure 2, step S3102 of Figure 3A, the optional implementation of step S3202, and other related parts in the embodiments involved in Figures 2, 3A and 3B, which will not be repeated here.

[0167] In some embodiments, the prediction result of the AI ​​includes at least one of the following: whether the terminal will experience a wireless link failure in the target cell; the terminal's residence time in the target cell; and the target cell's channel status in the future.

[0168] In some embodiments, the conditions satisfied by the target cell include at least one of the following: the terminal will not experience a wireless link failure in the target cell; the target cell will not experience a wireless link failure within a first time period in the future, and the first time period is greater than or equal to a first time period threshold; the terminal's stay time in the target cell is greater than or equal to a second time period threshold; the target cell's channel state in the future is higher than the first state threshold.

[0169] In some embodiments, the wireless channel measurement result of the target cell is higher than a first result threshold, and the wireless channel measurement result includes a measurement result of at least one of the following: RSRP; RSRQ; SINR.

[0170] In some embodiments, the method further includes: determining that there is no target cell that meets the conditions, and then the terminal enters an idle state.

[0171] In some embodiments, when the first condition is met, the terminal determines a target cell that meets the conditions based on the cell measurement results and the prediction results of AI, and meeting the first condition includes at least one of the following: the terminal fails to connect; the terminal establishes a connection; the terminal reestablishes a connection.

[0172] In some embodiments, the dwell time is the duration between when the terminal establishes a connection with the target cell and when the terminal leaves the target cell.

[0173] In some embodiments, the terminal leaves the target cell, which includes at least one of the following: the target cell of the terminal is switched; the serving cell of the terminal is changed; the terminal selects a cell; or the terminal reselects a cell.

[0174] In some embodiments, the channel state may be any one of the following: an average value of the channel state of the target cell within the third time period; or a minimum value of the channel state of the target cell within the fourth time period.

[0175] FIG4 is a flow chart of a cell selection method according to an embodiment of the present disclosure. As shown in FIG4 , the embodiment of the present disclosure relates to a cell selection method, which includes:

[0176] Step S4101, sending the first information.

[0177] The optional implementation of step S4101 can refer to the optional implementation of step S2101 in Figure 2 and other related parts in the embodiment involved in Figure 2, which will not be repeated here.

[0178] In some embodiments, terminal 101 receives first information sent by access network device 102. The first information is used to configure first parameters so that terminal 101 can determine a target cell that meets the conditions based on cell measurement results and AI prediction results. However, this is not limited to this, and first information sent by other entities may also be received.

[0179] It should be noted that the relevant content of the first parameter has been described in step S2101. For the relevant description of the first parameter, please refer to the relevant embodiment and will not be repeated here.

[0180] In some embodiments, the network device configures a first parameter to the terminal so that the terminal determines a target cell that meets the conditions based on the cell measurement result and the prediction result of the AI.

[0181] In some embodiments, the prediction result of the AI ​​includes at least one of the following: whether the terminal will experience a wireless link failure in the target cell; the terminal's residence time in the target cell; and the channel status of the target cell in the future.

[0182] In some embodiments, the conditions satisfied by the target cell include at least one of the following: the terminal will not experience a wireless link failure in the target cell; the target cell will not experience a wireless link failure within a first time period in the future, and the first time period is greater than or equal to a first time period threshold; the terminal's stay time in the target cell is greater than or equal to a second time period threshold; the target cell's channel state in the future is higher than the first state threshold.

[0183] In some embodiments, the wireless channel measurement result of the target cell is higher than a first result threshold, and the wireless channel measurement result includes a measurement result of at least one of the following: RSRP; RSRQ; SINR.

[0184] In some embodiments, when the first condition is met, the terminal determines a target cell that meets the conditions based on the cell measurement results and the prediction results of AI, and meeting the first condition includes at least one of the following: the terminal fails to connect; the terminal establishes a connection; the terminal reestablishes a connection.

[0185] In some embodiments, the dwell time is the duration between when the terminal establishes a connection with the target cell and when the terminal leaves the target cell.

[0186] In some embodiments, the terminal leaves the target cell, which includes at least one of the following: the target cell of the terminal is switched; the serving cell of the terminal is changed; the terminal selects a cell; or the terminal reselects a cell.

[0187] In some embodiments, the channel state may be any one of the following: an average value of the channel state of the target cell within the third time period; or a minimum value of the channel state of the target cell within the fourth time period.

[0188] In some embodiments, the present disclosure also provides a cell selection method for a terminal to reduce the probability of service interruption due to link failure.

[0189] In some embodiments, after the connection reestablishment is initiated, the terminal selects a target cell based on the cell measurement results and the AI ​​prediction results, and initiates an RRC reestablishment process to the target cell.

[0190] Optionally, the AI ​​prediction result may include any of the following: whether the target cell will experience a radio link failure in the future, or the duration of stay in the target cell.

[0191] The dwell time can be understood as the length of time the terminal stays in the target cell after entering the target cell, or the length of time between the terminal accessing the cell and the terminal switching out of the cell.

[0192] In some embodiments, the target cell may be a cell whose radio channel measurement result is higher than a certain threshold, wherein the radio channel measurement result may be any one or more of RSRP, RSRQ, or SINR.

[0193] In some embodiments, if the target cell will not experience radio link failure in the future, the target cell is selected to initiate connection reestablishment.

[0194] In some embodiments, if the dwell time in the target cell is longer than a first duration, the target cell is selected to initiate connection reestablishment, wherein the first duration may be specified by a standard or configured by the network.

[0195] In some embodiments, if no target cell meets the requirements, the terminal enters an idle state.

[0196] In some embodiments, if the target cell will not experience a radio link failure within a second time period in the future, the target cell is selected to initiate connection reestablishment. The second time period may be specified by a standard or configured by the network.

[0197] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0198] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0199] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0200] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0201] Figure 5A is a structural diagram of the terminal proposed in an embodiment of the present disclosure. As shown in Figure 5A, the terminal 5100 may include: at least one of a processing module 5101, a transceiver module 5102, etc. In some embodiments, the processing module is used to determine a target cell that meets the conditions based on the cell measurement results and the prediction results of the AI. Optionally, the processing module is used to execute at least one of the communication processing steps (such as step S2102, but not limited to this) performed by the terminal in any of the above methods, which will not be repeated here. Optionally, the transceiver module is used to execute at least one of the sending and / or receiving steps (such as step S2101, but not limited to this) performed by the terminal in any of the above methods, which will not be repeated here.

[0202] In some embodiments, the prediction result of the AI ​​includes at least one of the following: whether a wireless link failure will occur in the target cell for the terminal; the residence time of the terminal in the target cell; and the channel status of the target cell in the future.

[0203] In some embodiments, the target cell that meets the conditions includes at least one of the following: the terminal will not experience a wireless link failure in the target cell; the target cell will not experience a wireless link failure within a first time period in the future, and the first time period is greater than or equal to a first time period threshold; the terminal's stay time in the target cell is greater than or equal to a second time period threshold; the target cell's channel state in the future is higher than the first state threshold.

[0204] In some embodiments, the target cell that meets the conditions is a cell whose radio channel measurement result is higher than a first result threshold, and the radio channel measurement result includes a measurement result of at least one of the following: RSRP; RSRQ; SINR.

[0205] In some embodiments, when the determination module determines that there is no target cell that meets the conditions, the terminal enters an idle state.

[0206] In some embodiments, when the first condition is met, the terminal determines a target cell that meets the conditions based on the cell measurement results and the prediction results of AI, and meeting the first condition includes at least one of the following: the terminal fails to connect; the terminal establishes a connection; the terminal reestablishes a connection.

[0207] In some embodiments, the dwell time is the duration between when the terminal establishes a connection with the target cell and when the terminal leaves the target cell.

[0208] In some embodiments, the terminal leaves the target cell, which includes at least one of the following: handover of the terminal; change of the serving cell; cell selection of the terminal; and cell reselection of the terminal.

[0209] In some embodiments, the channel state may be any one of the following: an average value of the channel state of the target cell within the third time period; or a minimum value of the channel state of the target cell within the fourth time period.

[0210] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0211] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0212] Figure 5B is a schematic diagram of the structure of the network device proposed in an embodiment of the present disclosure. As shown in Figure 5B, the network device 5200 may include: a transceiver module 5201. In some embodiments, the above-mentioned transceiver module is used to send a first information to the terminal, and the first information is used to configure a first parameter so that the terminal can determine a target cell that meets the conditions based on the cell measurement result and the prediction result of the AI. Optionally, the above-mentioned transceiver module is used to perform at least one of the sending and / or receiving steps (such as step S2101, but not limited to this) performed by the network device in any of the above methods, which will not be repeated here.

[0213] In some embodiments, the network device configures a first parameter to the terminal so that the terminal determines a target cell that meets the conditions based on the cell measurement result and the prediction result of the AI.

[0214] In some embodiments, the prediction result of the AI ​​includes at least one of the following: whether the terminal will experience a wireless link failure in the target cell; the terminal's residence time in the target cell; and the target cell's channel status in the future.

[0215] In some embodiments, the conditions satisfied by the target cell include at least one of the following: the terminal will not experience a wireless link failure in the target cell; the target cell will not experience a wireless link failure within a first time period in the future, and the first time period is greater than or equal to a first time period threshold; the terminal's stay time in the target cell is greater than or equal to a second time period threshold; the target cell's channel state in the future is higher than the first state threshold.

[0216] In some embodiments, the wireless channel measurement result of the target cell is higher than a first result threshold, and the wireless channel measurement result includes a measurement result of at least one of the following: RSRP; RSRQ; SINR.

[0217] In some embodiments, when the first condition is met, the terminal determines a target cell that meets the conditions based on the cell measurement results and the prediction results of AI, and meeting the first condition includes at least one of the following: the terminal fails to connect; the terminal establishes a connection; the terminal reestablishes a connection.

[0218] In some embodiments, the dwell time is the duration between when the terminal establishes a connection with the target cell and when the terminal leaves the target cell.

[0219] In some embodiments, the terminal leaves the target cell, which includes at least one of the following: the target cell of the terminal is switched; the serving cell of the terminal is changed; the terminal selects a cell; or the terminal reselects a cell.

[0220] In some embodiments, the channel state may be any one of the following: an average value of the channel state of the target cell within the third time period; or a minimum value of the channel state of the target cell within the fourth time period.

[0221] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0222] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules each execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0223] Figure 6A is a schematic diagram of the structure of a communication device 6100 proposed in an embodiment of the present disclosure. Communication device 6100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 6100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0224] As shown in Figure 6A, the communication device 6100 includes one or more processors 6101. The processor 6101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 6100 is used to perform any of the above methods. Optionally, one or more processors 6101 are used to call instructions to enable the communication device 6100 to perform any of the above methods.

[0225] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., step S2102, but not limited thereto), and the processor 6101 performs at least one of the other steps (e.g., step S2101, but not limited thereto). In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be interchangeable, the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be interchangeable, and the terms receiver, receiving unit, receiver, and receiving circuit may be interchangeable.

[0226] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data. Alternatively, all or part of the memories 6103 may be located outside the communication device 6100. In alternative embodiments, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuits 6104 are connected to the memories 6103 and may be configured to receive data from the memories 6103 or other devices, or to send data to the memories 6103 or other devices. For example, the interface circuits 6104 may read data stored in the memories 6103 and send the data to the processor 6101.

[0227] The communication device 6100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 6100 described in the present disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited to FIG6A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0228] 6B is a schematic diagram of the structure of a chip 6200 according to an embodiment of the present disclosure. If the communication device 6100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 6200 shown in FIG6B , but the present disclosure is not limited thereto.

[0229] The chip 6200 includes one or more processors 6201. The chip 6200 is configured to execute any of the above methods.

[0230] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data. Alternatively, all or part of memory 6203 may be located external to chip 6200. Optionally, interface circuit 6202 is connected to memory 6203 and may be used to receive data from memory 6203 or other devices, or may be used to send data to memory 6203 or other devices. For example, interface circuit 6202 may read data stored in memory 6203 and send the data to processor 6201.

[0231] In some embodiments, the interface circuit 6202 performs at least one of the communication steps (e.g., step S2102, but not limited thereto) in the above method, such as sending and / or receiving. The interface circuit 6202 performing the communication steps (e.g., sending and / or receiving) in the above method, for example, means that the interface circuit 6202 performs data exchange between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of the other steps (e.g., step S2101, but not limited thereto).

[0232] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0233] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 6100, the communication device 6100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a transient storage medium.

[0234] The present disclosure also provides a program product, which, when executed by the communication device 6100, enables the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0235] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A cell selection method, characterized in that: The method comprises: The terminal determines the target cell that meets the conditions based on the cell measurement results and the prediction results of the artificial intelligence (AI); Initiate a connection establishment process to the target cell that meets the conditions.

2. The method according to claim 1, characterized in that The AI's prediction results include at least one of the following: Whether a radio link failure occurs to the terminal in the target cell; The residence time of the terminal in the target cell; The channel status of the target cell in the future.

3. The method according to claim 2, characterized in that The target cell satisfies at least one of the following conditions: The terminal will not experience radio link failure in the target cell; No radio link failure will occur in the target cell within a first time period in the future, where the first time period is greater than or equal to a first time period threshold; The duration of the terminal's stay in the target cell is greater than or equal to a second duration threshold; The channel state of the target cell in the future is higher than a first state threshold.

4. The method according to any one of claims 1 to 3, characterized in that The radio channel measurement result of the target cell is higher than a first result threshold, and the radio channel measurement result includes at least one of the following measurement results: Reference signal received power RSRP; Reference signal received quality RSRQ; Signal to Interference and Noise Ratio SINR.

5. The method according to claim 1, wherein The method further comprises: If it is determined that there is no target cell that meets the conditions, the terminal enters the idle state.

6. The method according to claim 1, characterized in that When the first condition is met, the terminal determines a target cell that meets the condition based on the cell measurement result and the AI prediction result, where the first condition includes at least one of the following: The terminal fails to connect; The terminal establishes a connection; The terminal reestablishes the connection.

7. The method according to claim 2, characterized in that The dwell time is the duration between the terminal establishing a connection with the target cell and the terminal leaving the target cell.

8. The method according to claim 7, characterized in that The terminal leaving the target cell includes at least one of the following: The target cell of the terminal is switched; The serving cell of the terminal changes; The terminal performs cell selection; The terminal reselects a cell.

9. The method according to claim 2, characterized in that The channel status can be any of the following: an average value of the channel state of the target cell within the third time period; and a minimum value of the channel state of the target cell within the fourth time period.

10. A terminal, characterized in that: include: A processing module is used to determine a target cell that meets the conditions based on the cell measurement results and the prediction results of the artificial intelligence (AI); The transceiver module is used to initiate a connection establishment process to the target cell that meets the conditions. The terminal according to claim 10 , wherein: The AI's prediction results include at least one of the following: Whether a radio link failure occurs to the terminal in the target cell; The residence time of the terminal in the target cell; The channel status of the target cell in the future.

12. The terminal according to claim 11, characterized in that The target cell satisfies at least one of the following conditions: The terminal will not experience radio link failure in the target cell; No radio link failure will occur in the target cell within a first time period in the future, where the first time period is greater than or equal to a first time period threshold; The duration of the terminal's stay in the target cell is greater than or equal to a second duration threshold; The channel state of the target cell in the future is higher than a first state threshold.

13. The terminal according to any one of claims 10 to 12, characterized in that: The radio channel measurement result of the target cell is higher than a first result threshold, and the radio channel measurement result includes at least one of the following measurement results: Reference signal received power RSRP; Reference signal received quality RSRQ; Signal to Interference and Noise Ratio SINR. The terminal according to claim 10 , wherein: When the determining module determines that there is no target cell that meets the conditions, the terminal enters an idle state. The terminal according to claim 10 , wherein: When the first condition is met, the terminal determines a target cell that meets the condition based on the cell measurement result and the AI prediction result, where the first condition includes at least one of the following: The terminal fails to connect; The terminal establishes a connection; The terminal reestablishes the connection. The terminal according to claim 11 , wherein: The dwell time is the duration between the terminal establishing a connection with the target cell and the terminal leaving the target cell. The terminal according to claim 16 , wherein: The terminal leaving the target cell includes at least one of the following: The target cell of the terminal is switched; The serving cell of the terminal changes; The terminal performs cell selection; The terminal reselects a cell.

18. The terminal according to claim 11, characterized in that The channel status can be any of the following: an average value of the channel status of the target cell within a third time period; The minimum value of the channel state of the target cell within a fourth time period.

19. A terminal, characterized in that: include: one or more processors; The processor is configured to execute the cell selection method according to any one of claims 1 to 9.

20. A communication system, characterized in that: The method comprises a terminal, wherein the terminal is configured to implement the cell selection method according to any one of claims 1 to 10.

21. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is caused to execute the cell selection method according to any one of claims 1 to 9.

22. A computer program product comprising a computer program, characterized in that When the computer program is executed on a communication device, the communication device is caused to execute the cell selection method according to any one of claims 1 to 9.

Images