Cell reselection method and device, electronic equipment and vehicle

Abstract

The invention discloses a cell reselection method and device, electronic equipment and a vehicle, and relates to the field of vehicle communication. The method comprises the steps that after it is detected that a vehicle stops running, whether the number of selectable communities in a first preset range is larger than 1 or not is judged; under the condition that the number of the selectable cells is greater than 1, acquiring a frequency parameter of each selectable cell; and analyzing the frequency parameter of each selectable cell, determining a target cell of which the frequency parameter meets the requirement, and initiating a registration request to the target cell. Compared with the scheme which only needs to meet the S criterion in the related technology, the method introduces the frequency parameter of each cell as the index of cell selection, and determines the final target cell by analyzing the frequency parameter of each selectable cell, thereby enabling the finally determined target cell to meet the service requirements from the frequency perspective, and improving the user experience. And services with relatively high resource scheduling and time delay sensitivity can be met, and the problem of relatively high communication time delay is solved.

Description

Technical Field

[0001] The present application relates to the field of vehicle communication technology, and in particular to a cell reselection method, device, electronic equipment and vehicle. Background Art

[0002] The cell reselection strategy refers to a method of selecting a better cell to provide service signals by detecting the signal quality of neighboring cells and the current cell in idle mode of the user equipment. In the field of vehicles, this strategy will be activated after the vehicle stops running in order to ensure that the remote vehicle control service has better communication quality. However, in the cell reselection strategy currently specified by 3GPP (3rd Generation Partnership Project), only the RSRQ value (Reference Signal Receiving Quality) of the cell is usually considered to select a suitable cell for registration, but the signal reception quality cannot fully cope with those services with high resource scheduling and delay sensitivity, so there will be a problem of high communication delay. Summary of the invention

[0003] In view of this, the present application provides a cell reselection method, device, electronic device and vehicle, which can improve the problem of high communication delay in the current cell reselection strategy.

[0004] In a first aspect, the present application provides a cell reselection method, comprising:

[0005] After detecting that the vehicle stops running, determining whether the number of selectable cells within the first preset range is greater than 1;

[0006] When the number of the optional cells is greater than 1, obtaining a frequency parameter of each optional cell;

[0007] The frequency parameters of each optional cell are analyzed, a target cell whose frequency parameters meet the requirements is determined, and a registration request is initiated to the target cell.

[0008] Optionally, the frequency parameter includes a subcarrier spacing parameter.

[0009] Optionally, the frequency parameters of each optional cell are analyzed, a target cell whose frequency parameters meet the requirements is determined, and a registration request is initiated to the target cell, including: obtaining the subcarrier spacing parameters of each optional cell; taking the cell with the highest subcarrier spacing parameter as the target cell; and initiating a registration request to the target cell.

[0010] Optionally, when the number of optional cells is less than or equal to 1, the method further includes: when the number of optional cells is equal to 1, taking the optional cell as the target cell and initiating a registration request to the target cell; when the number of optional cells is less than 1, determining whether the number of optional cells within a second preset range is greater than 1; and the second preset range is greater than the first preset range.

[0011] Optionally, after detecting that the vehicle stops running, the method further includes: predicting the parking time in combination with user data; and when the parking time exceeds a preset duration, determining whether the number of optional cells within a first preset range is greater than 1.

[0012] Optionally, the predicting of parking time in combination with user data includes: predicting the current parking time in combination with the user's historical parking data, wherein the historical parking data includes the parking location and historical parking duration; or predicting the current parking time in combination with the user's pre-marked location and pre-input time.

[0013] In a second aspect, the present application provides a cell reselection device, comprising:

[0014] A determination unit configured to determine whether the number of selectable cells within the first preset range is greater than 1 after detecting that the vehicle stops running;

[0015] An acquiring unit, configured to acquire a frequency parameter of each optional cell when the number of the optional cells is greater than 1;

[0016] The analyzing unit is configured to analyze the frequency parameters of each optional cell, determine a target cell whose frequency parameters meet the requirements, and initiate a registration request to the target cell.

[0017] In a third aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the cell reselection method described in the first aspect.

[0018] In a fourth aspect, the present application provides an electronic device, comprising a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor, wherein the processor implements the cell reselection method described in the first aspect when executing the computer program.

[0019] In a fifth aspect, the present application provides a vehicle, comprising the cell reselection device as mentioned in the second aspect or the electronic device as mentioned in the fourth aspect.

[0020] By means of the above technical solution, the present application provides a cell reselection method, device, electronic device and vehicle. First, after detecting that the vehicle stops running, it is determined whether the number of optional cells that meet the S criterion within the first preset range is greater than 1. When the number of optional cells is greater than 1, the frequency parameters of each optional cell are obtained and analyzed to determine the target cell and initiate a registration request to the target cell. Compared with the solution in the related art that only needs to meet the S criterion, the present application also introduces the frequency parameters of each cell as an indicator for cell selection. The final target cell is determined by analyzing the frequency parameters of each optional cell, so that the final target cell can also meet the business needs from the frequency perspective, and can better meet those services with high resource scheduling and delay sensitivity, solving the problem of high communication delay.

[0021] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] Figure 1 A schematic diagram of a process flow of a cell reselection method provided in an embodiment of the present application is shown;

[0025] Figure 2 A schematic diagram of a process flow of another cell reselection method provided in an embodiment of the present application is shown;

[0026] Figure 3 A schematic structural diagram of a cell reselection device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0027] In order to be able to more clearly understand the above-mentioned purposes, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. In addition, in order to be able to understand the characteristics and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings, and the attached drawings are only for reference purposes and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided by multiple details. However, in the absence of these details, one or more embodiments can still be implemented. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0028] The cell reselection method provided in this embodiment is applied to a cell reselection device, which can be installed in an ECU (Electronic Control Unit) in a vehicle, or in a UE (User Equipment) that communicates with the vehicle and is used to execute a cell reselection strategy.

[0029] In order to improve the problem of high communication delay in the current cell reselection strategy, this embodiment proposes a cell reselection method. Figure 1 As shown, the method includes:

[0030] S101, after detecting that the vehicle stops running, determining whether the number of selectable cells within a first preset range is greater than 1.

[0031] First, the implementation process of the method of the present application needs to be explained. In this embodiment, the cell reselection strategy is proposed to maintain the normal use of vehicle communication services (such as common remote vehicle control, etc.) when the vehicle stops running. In other words, the implementation process of the solution is performed during the process from the current vehicle stopping to the next vehicle starting.

[0032] Optionally, after detecting that the vehicle has stopped running, the parking time can also be predicted in combination with user data, which can specifically include predicting the current parking time in combination with the user's historical parking data. That is, the user's car usage habits are recorded and retrieved based on big data. The current parking time can also be predicted in combination with the user's pre-marked location and pre-input time, that is, the prediction is made based on the pre-marked location and pre-input time manually input by the user. In the case where the predicted parking time is greater than the preset time, it is determined whether the number of optional cells within the first preset range is greater than 1. The preset time can be set to 5 minutes, for example. The purpose of setting the preset time is mainly to define the situation where the vehicle stops running and stops for a short time. If the vehicle stops running for more than five minutes, it means that the vehicle may be stopped for a long time, so it is necessary to enable the cell reselection method to ensure vehicle communication. If it is less than five minutes, there is no need to adopt this strategy.

[0033] S102: When the number of selectable cells is greater than 1, obtain frequency parameters of each selectable cell.

[0034] In this embodiment, the optional cell is defined as a registrable cell that meets the S criterion. Generally speaking, when the UE performs cell selection, in addition to meeting conventional requirements (such as the cell is not prohibited, the cell belongs to at least one tracking area that is not prohibited from roaming, etc.), it is also necessary to meet the S criterion, that is, the received power Srxlev in the cell search is greater than 0dB and the received signal quality Squal in the cell search is greater than 0dB. This is generally determined by judging the RSRP value (Reference Signal Receiving Power) of each cell.

[0035] Determine whether the number of optional cells within the first preset range is greater than 1. The first preset range refers to the distance range around the vehicle. Determine the number of optional cells. If the number of optional cells is greater than 1, execute the next step; if it is equal to 1, directly initiate registration with the cell.

[0036] S103, analyzing the frequency parameters of each optional cell, determining a target cell whose frequency parameter meets the requirements and initiating a registration request to the target cell.

[0037] Frequency parameters include subcarrier spacing parameters, also known as SCS frequency, which is used to indicate the subcarrier spacing size. The higher the SCS frequency, the more frequent the resource scheduling, which will reduce the round-trip data delay, thereby improving the communication quality, and is suitable for services that are sensitive to delay requirements, such as remote vehicle control and VR.

[0038] In this embodiment, after detecting that the vehicle stops running, firstly, it is determined whether the number of optional cells that meet the S criterion within the first preset range is greater than 1. If the number of optional cells is greater than 1, the frequency parameters of each optional cell are obtained and analyzed to determine the target cell and initiate a registration request to the target cell. Compared with the solution in the related art that only needs to meet the S criterion, this embodiment also introduces the frequency parameters of each cell as an indicator of cell selection on this basis, and determines the final target cell by analyzing the frequency parameters of each optional cell, so that the final target cell can also meet the service requirements from the frequency perspective, and can better meet those services with high resource scheduling and delay sensitivity, and solve the problem of high communication delay.

[0039] Optionally, after detecting that the vehicle stops running, the method further includes: predicting the parking time in combination with user data; and when the parking time exceeds a preset duration, determining whether the number of optional cells within the first preset range is greater than 1.

[0040] Furthermore, the parking time is predicted in combination with the user data, including: predicting the current parking time in combination with the user's historical parking data, the historical parking data including the parking location and the historical parking duration; or predicting the current parking time in combination with the user's pre-marked location and pre-input time.

[0041] In this embodiment, the parking time is predicted in combination with the user data, which may specifically include predicting the current parking time in combination with the user's historical parking data. That is, the user's car usage habits are recorded and retrieved based on big data. For example, a user leaves home at 7 o'clock on a weekday, arrives at the company at 8 o'clock, leaves the company at 17 o'clock in the evening, and drives home at 18 o'clock. Then the historical parking data may include parking locations at home and company, and parking durations from 8 o'clock to 17 o'clock and from 18 o'clock to 7 o'clock the next day. Since 8 o'clock to 17 o'clock is a total of 9 hours, the parking time can be predicted to be 8 to 10 hours.

[0042] The parking time can also be predicted based on the user's pre-marked location and pre-input time, that is, the prediction is made based on the user's manually entered pre-marked location and pre-input time. For example, if the user enters the company's parking location as a mark in advance and enters an approximate parking time of 6 hours, the predicted parking time can be expanded to 5-7 hours. By predicting parking time in multiple ways, the implementation of the plan is more convenient and accurate, and more in line with the user's actual usage.

[0043] Optionally, the frequency parameter includes a subcarrier spacing parameter.

[0044] In this embodiment, the subcarrier spacing parameter, namely the SCS frequency, is used to indicate the subcarrier spacing size. The higher the SCS frequency, the more frequent the resource scheduling, which will reduce the round-trip data delay, thereby improving the communication quality, and is suitable for services that are sensitive to delay requirements, such as remote vehicle control and VR. This improves the delay response rate and solves the problem that the existing related cell reselection method may cause high communication delay.

[0045] Optionally, the frequency parameters of each optional cell are analyzed to determine a target cell whose frequency parameters meet the requirements and initiate a registration request to the target cell, including: obtaining subcarrier spacing parameters of each optional cell; taking the cell with the highest subcarrier spacing parameter as the target cell; and initiating a registration request to the target cell.

[0046] In this embodiment, the cell with the highest SCS frequency is selected as the target cell, and a registration request is initiated. On the basis of satisfying the conventional S criterion, the target cell also uses the SCS frequency as a new cell selection indicator. In the original cell reselection scheme, there may be many cells that meet the S criterion, but the method for finally determining the target cell is not unique. It may be that the cell with the highest RSRP value is registered as the target cell. However, this method ignores the perspective of resource scheduling, resulting in the inability to meet certain services with high latency requirements. In this embodiment, the SCS frequency is used as a new cell selection indicator. The higher the SCS frequency, the more frequent the resource scheduling, which will reduce the round-trip data delay, thereby improving the communication quality. It is suitable for remote vehicle control, VR and other services that are sensitive to latency requirements.

[0047] Optionally, when the number of optional cells is less than or equal to 1, the method also includes: when the number of optional cells is equal to 1, taking the optional cell as the target cell and initiating a registration request to the target cell; when the number of optional cells is less than 1, determining whether the number of optional cells within a second preset range is greater than 1; the second preset range is greater than the first preset range.

[0048] In this embodiment, if there is only one optional cell, then registration is performed with the cell that meets the S criterion, and ensuring communication is the primary consideration. If the number of optional cells is small, it means that the first preset range may be set too small, so it is determined whether the number of optional cells in the second preset range is greater than 1. Similarly, the third preset range, the fourth preset range, etc. can be set in an increasing manner, and the range sizes can be screened step by step, so that the final communication quality is better.

[0049] For example, if a solution without setting multiple preset ranges is adopted, two optional cells are obtained, one is closer (approximately within the distance of the first preset range) and the other is farther (approximately within the interval from the first preset range to the second preset range). Finally, the RSRP value may be used to judge that because both are low, the farther cell may be selected, which may make the communication quality worse.

[0050] Optionally, after analyzing the frequency parameters of each optional cell, determining the target cell and initiating a registration request to the target cell, the method further includes: after detecting that the vehicle is started, stopping predicting the parking time.

[0051] In this embodiment, if it is detected that the vehicle is started, the prediction of the parking time is stopped and the cell reselection strategy is exited.

[0052] like Figure 2 FIG. 1 is a flow chart of another cell reselection method provided in an embodiment of the present application, the method comprising:

[0053] S201, determine whether the vehicle has stopped running. If so, proceed to S202; if not, proceed to S207.

[0054] First, it should be explained that the cell reselection method proposed in this embodiment is executed after the vehicle stops and before the next vehicle operation, more specifically, when the vehicle stops and the predicted parking time exceeds a preset duration.

[0055] S202: predict the parking time T based on the user data.

[0056] The parking time is predicted in combination with the user data, which may specifically include predicting the current parking time in combination with the user's historical parking data. That is, the user's car usage habits are recorded and retrieved based on big data. The current parking time may also be predicted in combination with the user's pre-marked location and pre-input time, that is, the prediction is made based on the pre-marked location and pre-input time manually entered by the user.

[0057] S203, determine whether T is greater than a preset time t. If so, proceed to S204; if not, proceed to S207.

[0058] The purpose of setting the preset time is mainly to define the situation where the vehicle stops running and stops for a short time. If it is less than the preset time, there is no need to adopt this strategy.

[0059] S204, determining whether the number of selectable cells within the first preset range is greater than 1. If so, proceed to S2052; if not, proceed to S2051.

[0060] S2051, initiate a registration request to the cell.

[0061] It is determined whether the number of selectable cells within the first preset range is greater than 1. The first preset range refers to the distance range around the vehicle. The number of selectable cells is determined. If the number of selectable cells is equal to 1, registration can be directly initiated to the cell.

[0062] S2052, obtain the SCS frequency value of each optional cell.

[0063] When the number of optional cells is greater than 1, obtain the frequency parameters of each cell, that is, the SCS frequency value. The higher the SCS frequency, the more frequent the resource scheduling, which will reduce the round-trip data delay, thereby improving the communication quality, and is suitable for services that are sensitive to delay requirements, such as remote vehicle control and VR.

[0064] S206: The cell with the highest SCS frequency value is taken as the target cell, and a registration request is initiated to the target cell.

[0065] S207: Do not execute the cell reselection method.

[0066] In the above embodiment, after detecting that the vehicle has stopped running, the parking time is predicted in combination with user data. When the parking time exceeds the preset duration, it is determined whether the number of optional cells that meet the S criterion within the first preset range is greater than 1. When the number of optional cells is greater than 1, the frequency parameters of each optional cell are obtained and analyzed to determine the target cell and initiate a registration request to the target cell. Compared with the solution in the related art that only needs to meet the S criterion, this embodiment also introduces the frequency parameters of each cell as an indicator for cell selection. The final target cell is determined by analyzing the frequency parameters of each optional cell, so that the final target cell can also meet the business needs from the frequency perspective, and can better meet those services with high resource scheduling and delay sensitivity, thereby solving the problem of high communication delay.

[0067] Further, as Figure 1 and Figure 2 The specific implementation of the method shown in the embodiment provides a cell reselection device, such as Figure 3 As shown, the device includes: a judgment unit 301, an acquisition unit 302 and an analysis unit 303.

[0068] The determination unit 301 is configured to determine whether the number of selectable cells within the first preset range is greater than 1 after detecting that the vehicle stops running;

[0069] An acquiring unit 302 is configured to acquire a frequency parameter of each optional cell when the number of the optional cells is greater than 1;

[0070] The analyzing unit 303 is configured to analyze the frequency parameters of each optional cell, determine a target cell whose frequency parameters meet the requirements, and initiate a registration request to the target cell.

[0071] In a specific application scenario, the analysis unit 303 is further configured to obtain the subcarrier spacing parameter of each optional cell; take the cell with the highest subcarrier spacing parameter as the target cell; and initiate a registration request to the target cell.

[0072] In a specific application scenario, the acquisition unit 302 is further configured to, when the number of optional cells is equal to 1, take the optional cell as the target cell and initiate a registration request to the target cell; when the number of optional cells is less than 1, determine whether the number of optional cells within a second preset range is greater than 1; and the second preset range is greater than the first preset range.

[0073] In a specific application scenario, the judgment unit 301 is further configured to predict the parking time in combination with the user data; when the parking time exceeds the preset duration, it is determined whether the number of optional cells within the first preset range is greater than 1.

[0074] In a specific application scenario, the judgment unit 301 is further configured to predict the current parking time based on the user's historical parking data, where the historical parking data includes the parking location and historical parking duration; or, predict the current parking time based on the user's pre-marked location and pre-input time.

[0075] It should be noted that for other corresponding descriptions of the functional units involved in the cell reselection device provided in this embodiment, reference can be made to Figure 1 and Figure 2 The corresponding description in will not be repeated here.

[0076] Based on the above Figure 1 and Figure 2 The method shown in the embodiment also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned Figure 1 and Figure 2 The method shown.

[0077] Based on this understanding, the technical solution of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, USB flash drive, mobile hard disk, etc.), including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods of various implementation scenarios of the present application.

[0078] Based on the above Figure 1 and Figure 2 The method shown, and Figure 3 In order to achieve the above-mentioned purpose, the embodiment of the present application further provides an electronic device, which can be configured on a computer side or a vehicle side, etc. The device includes a storage medium and a processor; the storage medium is used to store a computer program; the processor is used to execute the computer program to achieve the above-mentioned Figure 1 and Figure 2 The method shown.

[0079] Based on the above electronic device, the embodiment of the present application further provides a vehicle, which may specifically include: Figure 3 The device shown in the figure or the electronic device as described above. The vehicle can be a new energy vehicle or a traditional vehicle.

[0080] Optionally, the above-mentioned physical device may also include a user interface, a network interface, a camera, a radio frequency (RF) circuit, a sensor, an audio circuit, a WI-FI module, etc. The user interface may include a display, an input unit such as a keyboard, etc., and the optional user interface may also include a USB interface, a card reader interface, etc. The network interface may optionally include a standard wired interface, a wireless interface (such as a WI-FI interface), etc.

[0081] Those skilled in the art will appreciate that the above-mentioned physical device structure provided in this embodiment does not constitute a limitation on the physical device, and may include more or fewer components, or a combination of certain components, or different arrangements of components.

[0082] The storage medium may also include an operating system and a network communication module. The operating system is a program that manages the hardware and software resources of the above-mentioned physical device, and supports the operation of the information processing program and other software and / or programs. The network communication module is used to realize the communication between the components inside the storage medium, and the communication with other hardware and software in the information processing physical device.

[0083] Through the description of the above implementation methods, those skilled in the art can clearly understand that the present application can be implemented by means of software plus a necessary general hardware platform, or by hardware. Applying the solution of this embodiment, first, after detecting that the vehicle stops running, determine whether the number of optional cells that meet the S criterion within the first preset range is greater than 1. When the number of optional cells is greater than 1, obtain the frequency parameters of each optional cell and analyze the frequency parameters of each optional cell, determine the target cell and initiate a registration request to the target cell. Compared with the solution in the related art that only needs to meet the S criterion, this embodiment also introduces the frequency parameters of each cell as an indicator for cell selection on this basis, and determines the final target cell by analyzing the frequency parameters of each optional cell, so that the final target cell can also meet the business needs from the frequency perspective, and can better meet those services with high resource scheduling and delay sensitivity, and solve the problem of high communication delay.

[0084] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0085] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features of the present application.

[0086] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent possible changes only. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. The term "and / or" as used in this application refers to any and all possible combinations of one or more associated listings. In addition, when used in this application, the term "comprise" and its variants "comprises" and / or including (comprising) refer to the existence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the existence or addition of one or more other features, wholes, steps, operations, elements, components and / or these groups. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method or device including the elements. In this document, each embodiment may focus on the differences from other embodiments, and the same or similar parts between the embodiments may refer to each other. For the methods, devices, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts may refer to the description of the method part.

[0087] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0088] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0089] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A cell reselection method, It is characterized in that include: After detecting that the vehicle stops running, determining whether the number of selectable cells within the first preset range is greater than 1; When the number of the optional cells is greater than 1, obtaining a frequency parameter of each optional cell; The frequency parameters of each optional cell are analyzed, a target cell whose frequency parameters meet the requirements is determined, and a registration request is initiated to the target cell.

2. The method according to claim 1, It is characterized in that The frequency parameters include subcarrier spacing parameters.

3. The method according to claim 2, It is characterized in that The analyzing the frequency parameters of each optional cell, determining the target cell whose frequency parameters meet the requirements and initiating a registration request to the target cell includes: Acquire the subcarrier spacing parameter of each optional cell; Taking the cell with the highest subcarrier spacing parameter as the target cell; A registration request is initiated to the target cell.

4. The method according to claim 1, It is characterized in that In a case where the number of selectable cells is less than or equal to 1, the method further includes: When the number of the optional cells is equal to 1, taking the optional cell as a target cell and initiating a registration request to the target cell; When the number of selectable cells is less than 1, it is determined whether the number of selectable cells within a second preset range is greater than 1, the second preset range being greater than the first preset range.

5. The method according to any one of claims 1 to 4, It is characterized in that After detecting that the vehicle stops running, the method further includes: Combine user data to predict parking time; When the parking time exceeds the preset time length, it is determined whether the number of optional cells within the first preset range is greater than 1.

6. The method according to claim 5, It is characterized in that The predicting of parking time in combination with user data includes: Combine the user's historical parking data to predict the current parking time, where the historical parking data includes the parking location and historical parking duration; or The parking time is predicted based on the user's pre-marked location and pre-input time.

7. A cell reselection device, It is characterized in that include: A determination unit configured to determine whether the number of selectable cells within the first preset range is greater than 1 after detecting that the vehicle stops running; An acquiring unit, configured to acquire a frequency parameter of each optional cell when the number of the optional cells is greater than 1; The analyzing unit is configured to analyze the frequency parameters of each optional cell, determine a target cell whose frequency parameters meet the requirements, and initiate a registration request to the target cell.

8. A computer-readable storage medium having a computer program stored thereon, It is characterized in that When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

9. An electronic device comprising a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor, It is characterized in that When the processor executes the computer program, the method according to any one of claims 1 to 6 is implemented.

10. A vehicle, It is characterized in that include: The device as claimed in claim 7 or the electronic device as claimed in claim 9.

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