Cell reselection method and system for solving same frequency point reselection priority under different RATs, terminal and medium

Abstract

The invention provides a cell reselection method, a system, a terminal and a medium for solving the same frequency point reselection priority under different RATs, and cell reselection evaluation is carried out on frequency points with the same or different reselection priorities under different RATs through a set RAT priority order so as to complete cell reselection. According to the invention, when the frequency points of different RATs have the same reselection priority, the reselection priority of the network does not need to be modified, the cell is selected according to the priority of the RAT, the idea of setting the reselection priority by the network is as close as possible, the purpose of the optimal solution is achieved, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a method, system, terminal and medium for reselecting cells with the same frequency reselection priority under different RATs. Background Art

[0002] The reselection priority is a measure of the network's priority to reside in different cells when the UE (user equipment) reselects a cell. Different RATs have different frequencies, and these frequencies have their own priorities. The same reselection priority is generally not allowed at frequencies under different RATs. If such a situation occurs, the UE needs to take appropriate measures to deal with it. In the existing technology, a method for modifying the reselection priority is proposed, which is to modify the reselection priority. However, modifying the reselection priority may violate the original intention of the network, and some unexpected situations may occur, and the resident cell may not be the optimal solution. Summary of the invention

[0003] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a method, system, terminal and medium for reselecting cells with the same frequency reselection priority under different RATs, which is used to solve the technical problem that in the prior art, the same reselection priority is handled in frequencies under different RATs by modifying the reselection priority, which may violate the original intention of the network and may lead to some unexpected situations, and the resident cell may not be the optimal solution.

[0004] To achieve the above-mentioned purpose and other related purposes, the present invention provides a method for solving cell reselection with the same frequency reselection priority under different RATs, the method comprising: setting a RAT priority order; wherein the RAT priority order is to sort multiple different RATs according to their priorities; based on the RAT priority order, performing cell reselection evaluation for frequency points with the same or different reselection priorities under different RATs to complete cell reselection.

[0005] In one embodiment of the present invention, the cell reselection evaluation is performed for frequencies with the same or different reselection priorities under different RATs based on the RAT priority order to complete the cell reselection, including: determining whether the current situation meets the evaluation conditions for a new round of frequency cell reselection; if so, performing the frequency cell reselection evaluation operation for this round based on the RAT priority order, and if the current round of frequency cell reselection evaluation fails, re-determining whether the current situation meets the evaluation conditions for a new round of frequency cell reselection; if not, the cell reselection fails and the process ends.

[0006] In one embodiment of the present invention, the evaluation conditions for a new round of frequency cell reselection include: determining whether there are any frequencies that have not been evaluated for cell reselection; if so, the evaluation conditions for a new round of frequency cell reselection are met; if not, the evaluation conditions for a new round of frequency cell reselection are not met.

[0007] In one embodiment of the present invention, the frequency cell reselection evaluation operation includes: selecting a frequency with the highest reselection priority among the frequencies that have never been reselected as an alternative frequency; determining whether each alternative frequency belongs to a different RAT; if they belong to the same RAT, executing a normal frequency cell reselection evaluation process; if they belong to different RATs, executing a RAT priority frequency cell reselection evaluation process based on the RAT priority order.

[0008] In one embodiment of the present invention, the RAT priority frequency cell reselection evaluation process includes: executing the target frequency cell reselection evaluation process according to the RAT priority order; wherein the target frequency selection process includes: selecting the alternative frequency of the current highest priority RAT as the target frequency, and performing a reselection evaluation on the cell of the target frequency; determining whether the corresponding cell can be found; if so, executing the first reselection success judgment process; if not, returning to determine whether the current evaluation conditions for a new round of frequency cell reselection are met.

[0009] In one embodiment of the present invention, the reselection success judgment process includes: detecting whether a broadcast signal that meets the requirements can be received from the corresponding cell; if so, the reselection is successful and the process ends; if not, the frequency point is removed from the alternative frequency points, and the target frequency point cell reselection evaluation process is returned to execute.

[0010] In one embodiment of the present invention, the normal frequency cell reselection evaluation process includes: reselection evaluation of all cells of each alternative frequency; detecting whether a broadcast signal that meets the requirements can be received from the corresponding cell; if so, the reselection is successful and the process ends; if not, returning to determine whether the current evaluation conditions for a new round of frequency cell reselection are met.

[0011] To achieve the above-mentioned object and other related objects, the present invention provides a cell reselection system for solving the problem of frequency reselection priorities being the same under different RATs, the system comprising: a priority RAT setting module, for setting a RAT priority order; wherein the RAT priority order is a plurality of different RATs sorted according to their priorities; and a cell reselection evaluation module, connected to the priority RAT setting module, for performing a cell reselection evaluation for frequency points having the same or different reselection priorities under different RATs based on the RAT priority order, so as to complete the cell reselection.

[0012] To achieve the above-mentioned purpose and other related purposes, the present invention provides a terminal device, comprising: one or more memories and one or more processors; the one or more memories are used to store computer programs; the one or more processors are connected to the memories and are used to run the computer program to execute the method for reselecting cells with the same frequency reselection priority under different RATs.

[0013] To achieve the above-mentioned object and other related objects, the present invention provides a computer-readable storage medium storing a computer program, wherein the computer program is executed by one or more processors to perform the method described.

[0014] As described above, the present invention is a method, system, terminal and medium for solving the problem of cell reselection with the same frequency reselection priority under different RATs, and has the following beneficial effects: The present invention performs cell reselection evaluation for frequency points with the same or different reselection priorities under different RATs based on the set RAT priority order to complete cell reselection. The present invention does not modify the reselection priority of the network, selects a cell according to the priority RAT, and is as close as possible to the original intention of the network to set the reselection priority, so as to achieve the purpose of the optimal solution and improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the flow of a method for reselecting cells with the same frequency reselection priority under different RATs according to an embodiment of the present invention.

[0016] Figure 2 It is a schematic diagram of a cell reselection process for solving the problem of the same frequency reselection priority in different RATs according to an embodiment of the present invention.

[0017] Figure 3 It is a schematic diagram of the structure of a cell reselection system for solving the problem of cell reselection with the same frequency reselection priority under different RATs in one embodiment of the present invention.

[0018] Figure 4 Shown is a schematic diagram of the structure of a terminal device in an embodiment of the present invention. DETAILED DESCRIPTION

[0019] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0020] It should be noted that in the following description, reference is made to the accompanying drawings, which describe several embodiments of the present invention. It should be understood that other embodiments may also be used, and that mechanical composition, structural, electrical and operational changes may be made without departing from the spirit and scope of the present invention. The following detailed description should not be considered restrictive, and the scope of the embodiments of the present invention is limited only by the claims of the published patents. The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. Spatially related terms, such as "upper", "lower", "left", "right", "below", "below", "lower", "above", "upper", etc., may be used in the text to facilitate the description of the relationship between an element or feature shown in the figure and another element or feature.

[0021] Throughout the specification, when a part is said to be "connected" to another part, this includes not only the case of "direct connection" but also the case of "indirect connection" by placing other elements therebetween. In addition, when a part is said to "include" a certain constituent element, unless otherwise stated, it does not exclude other constituent elements, but means that other constituent elements may be included.

[0022] The terms first, second and third mentioned herein are used to describe various parts, components, regions, layers and / or segments, but are not limited thereto. These terms are only used to distinguish a certain part, component, region, layer or segment from other parts, components, regions, layers or segments. Therefore, the first part, component, region, layer or segment described below may refer to the second part, component, region, layer or segment within the scope of the present invention.

[0023] Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless there is an indication to the contrary in the context. It should be further understood that the terms "comprise", "include" indicate the presence of the described features, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Exceptions to this definition will only occur when the combination of elements, functions or operations is inherently mutually exclusive in some way.

[0024] The present invention provides a method for reselecting cells with the same frequency reselection priority under different RATs, and performs cell reselection evaluation for frequencies with the same or different reselection priorities under different RATs based on the set RAT priority order to complete cell reselection. The present invention does not modify the reselection priority of the network, selects a cell according to the priority RAT, and is as close as possible to the original intention of setting the reselection priority of the network, so as to achieve the purpose of the optimal solution and improve the user experience.

[0025] At the same time, in order to make the purpose, technical solution and advantages of the present invention more clear, the technical solution in the embodiment of the present invention is further described in detail through the following embodiments and in combination with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the invention.

[0026] Before further describing the present invention in detail, the nouns and terms involved in the embodiments of the present invention are explained. The nouns and terms involved in the embodiments of the present invention are applicable to the following interpretations:

[0027] <1> RAT (Radio Access Technology) refers to the technology used to connect user devices (such as mobile phones, tablets, etc.) to the core network in wireless communication networks. Different RATs support different data transmission rates, coverage, spectrum efficiency, power consumption and other characteristics. Common RATs include 2G, 3G, 4G (LTE), 5G, etc. Different RATs may use different frequency bands and frequency resources.

[0028] <2> Frequency refers to a specific absolute frequency value, which is generally the center frequency of the modulated signal. Frequency is a number given to a fixed frequency and is the basic resource unit in a wireless communication network. It is used to distinguish different frequency resources in a wireless communication network. Different frequency points can carry different services and data transmission.

[0029] <3> A cell is a basic coverage unit in a wireless communication network, an area covered by wireless signals provided by base stations (such as macro base stations, micro base stations, etc.). A base station can cover multiple cells, each of which has its own unique identification and configuration.

[0030] <4> Cell reselection: During the mobile process, the user equipment will continuously select and reselect cells to ensure that it can connect to the cell with the best signal quality and the most suitable for the current service needs. During the cell reselection process, cells with high priority frequencies will be given priority as switching targets.

[0031] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention. The present invention can be embodied in many different forms and is not limited to the embodiments described herein.

[0032] like Figure 1 A flow chart of a method for reselecting cells with the same frequency reselection priority under different RATs in an embodiment of the present invention is shown.

[0033] Applied to a terminal device, the method comprises:

[0034] Step S1: Setting RAT priority.

[0035] In detail, the RAT priority order is to sort multiple different RATs according to their priorities.

[0036] The main needs of network users can be analyzed, such as whether high-speed downloads, real-time video calls, low-latency games, etc. are needed, and the differences in coverage, capacity, cost, etc. of different RATs can be considered, as well as how they affect the user experience to set the RAT priority. For example, in areas that support 5G, 5G networks will be given priority, followed by 4G as an alternative with wide coverage and relatively high speed. Finally, when neither 5G nor 4G are available, 3G or other lower-speed RATs can be considered, and the priority order is 5G, 4G, 3G, and 2G.

[0037] Step S2: Based on the RAT priority order, cell reselection evaluation is performed for frequency points with the same or different reselection priorities under different RATs to complete cell reselection.

[0038] In one embodiment, step S2 includes:

[0039] Determine whether the current evaluation conditions for a new round of frequency cell reselection are met;

[0040] If yes, then the frequency cell reselection evaluation operation of this round is performed based on the RAT priority order, and if the frequency cell reselection evaluation of this round fails, it is re-determined whether the current round meets the evaluation conditions for a new round of frequency cell reselection;

[0041] If not, the cell reselection fails and the process ends.

[0042] In a specific embodiment, the evaluation conditions for a new round of frequency cell reselection include:

[0043] Determine whether there are any frequencies that have not been evaluated for cell reselection;

[0044] If yes, it meets the new round of frequency cell reselection evaluation conditions;

[0045] If not, it does not meet the evaluation conditions for a new round of frequency cell reselection.

[0046] In one embodiment, the frequency cell reselection evaluation operation includes:

[0047] The frequency with the highest reselection priority is selected from the frequency points that have not been reselected as the candidate frequency point; specifically, the terminal device selects the frequency points with the highest reselection priority from the list of known frequency points that have not been reselected. These frequency points will be used as potential candidate frequency points for subsequent reselection evaluation.

[0048] Determine whether each candidate frequency point belongs to a different RAT;

[0049] If they belong to the same RAT, the normal frequency cell reselection evaluation process will be executed; specifically, if all candidate frequencies belong to the same RAT, the terminal device will operate according to the normal frequency cell reselection evaluation process.

[0050] If they belong to different RATs, the RAT priority frequency cell reselection evaluation process is performed based on the RAT priority order. Specifically, if the candidate frequencies belong to different RATs, the UE will perform the reselection evaluation process according to the predefined RAT priority order. This process will give priority to the frequencies and cells under the RAT with higher priority to ensure that the UE can connect to the optimal network type.

[0051] From the above, it can be seen that even if the frequency reselection priorities under different RATs are the same, this solution does not need to modify the reselection priorities. When the reselection priorities are the same, the cell of the priority RAT is selected to improve the user experience.

[0052] In one embodiment, the RAT priority frequency cell reselection evaluation process includes:

[0053] According to the RAT priority order, the target frequency cell reselection evaluation process is executed; wherein, the target frequency selection process includes: selecting the alternative frequency of the RAT with the highest current priority as the target frequency, and performing a reselection evaluation on the cell of the target frequency; this includes measuring the cell's signal strength, signal quality, network parameters, etc., and selecting the most suitable cell according to certain criteria (such as best signal, load balancing, etc.).

[0054] Determine whether a corresponding cell can be found; specifically, after performing a cell reselection evaluation, it is necessary to determine whether a suitable cell is found at the target frequency.

[0055] If yes, execute the first re-election success judgment process;

[0056] If not, the process returns to determine whether the current evaluation conditions for a new round of frequency cell reselection are met.

[0057] In one embodiment, the re-election success judgment process includes:

[0058] Detect whether it can receive a broadcast signal that meets the requirements from the corresponding cell; specifically, the UE will monitor and try to decode the broadcast message (such as system information block SIBs) from the target cell to obtain the necessary network parameters and access conditions. At the same time, the UE will check whether the received signal quality (such as RSRP, RSRQ, etc.) meets the preset requirements.

[0059] If yes, the reselection is successful and the process ends; specifically, if the UE can successfully receive a broadcast signal that meets the requirements from the target cell, the reselection operation can be considered successful. At this point, the UE will stop further searching and evaluation and prepare to switch to the new cell.

[0060] If not, remove the frequency from the alternative frequencies and return to execute the target frequency cell reselection evaluation process. Specifically, if the UE cannot receive a broadcast signal that meets the requirements from the target cell, or the received signal quality does not meet the requirements, then the reselection operation can be considered to have failed. At this time, the UE needs to take appropriate measures to continue to find a suitable cell for connection. The UE will remove the currently attempted frequency from the list of alternative frequencies to avoid repeated attempts in subsequent searches. Then, the UE will re-execute the target frequency cell reselection evaluation process and select the next target frequency for evaluation based on the RAT priority order. If all alternative frequencies have been tried and all failed, the UE will end the process.

[0061] In one embodiment, the normal frequency cell reselection evaluation process includes:

[0062] Reselect all cells at all candidate frequencies; specifically, the UE measures and compares parameters such as signal strength and signal quality of each cell, and selects the most suitable cell based on certain evaluation criteria (such as best signal, load balancing, etc.).

[0063] Detect whether it can receive the broadcast signal that meets the requirements from the corresponding cell; specifically, the UE will monitor and try to decode the broadcast message from the cell (such as system information blocks SIBs) to obtain the necessary network parameters and access conditions. At the same time, the UE will check whether the received signal quality (such as RSRP, RSRQ, etc.) meets the preset requirements.

[0064] If yes, the reselection is successful and the process ends; specifically, if the UE can successfully receive a broadcast signal that meets the requirements from the target cell, the reselection operation can be considered successful. At this point, the UE will stop further searching and evaluation and prepare to switch to the new cell.

[0065] If not, then return to determine whether the current evaluation conditions for a new round of frequency cell reselection are met. Specifically, return to determine whether the current evaluation conditions for a new round of frequency cell reselection are met. If the conditions are still met, then the UE will re-evaluate the frequency cell reselection.

[0066] In order to better describe a method for reselecting cells with the same frequency reselection priority under different RATs, the method is described in conjunction with the following specific embodiments.

[0067] Example:

[0068] like Figure 2 A flowchart of a method for reselecting cells with the same frequency reselection priority under different RATs. The specific process includes:

[0069] Step 1: During the cell reselection evaluation, first determine whether there are any frequencies that have not been reselected. If yes, jump to step 2, otherwise the reselection ends.

[0070] Step 2: Select the frequency with the highest reselection priority from the frequencies that have not been reselected. After completing step 2, jump to step 3.

[0071] Step 3: Determine whether these frequency points belong to different RATs; if so, jump to step 4; if not, jump to step 7;

[0072] Step 4: Select the candidate frequency of the RAT with the highest current priority as the target frequency, and re-evaluate the cell of the target frequency. After executing step 4, jump to step 5.

[0073] Step 5: Determine whether the corresponding cell can be found. If yes, jump to step 6; if not, return to step 1.

[0074] Step 6: Determine whether the reselection is successful. If so, the reselection ends; otherwise, return to step 4.

[0075] Step 7: Perform reselection evaluation on all cells of the current frequency points that have not been reselected. After completing step 7, jump to step 8.

[0076] Step 8: Determine whether the re-election is successful; if so, the re-election ends, otherwise jump to step 1.

[0077] Similar to the principle of the above embodiment, the present invention provides a cell reselection system for reselecting cells with the same frequency reselection priority under different RATs.

[0078] The following provides specific embodiments in conjunction with the accompanying drawings:

[0079] like Figure 3A schematic diagram of the structure of a cell reselection system for solving the problem of frequency reselection priorities being the same under different RATs according to an embodiment of the present invention is shown.

[0080] The system comprises:

[0081] The priority RAT setting module 1 is used to set the RAT priority order; wherein the RAT priority order is to sort multiple different RATs according to their priorities;

[0082] The cell reselection evaluation module 2 is connected to the priority RAT setting module 1 and is used to perform cell reselection evaluation for frequency points with the same or different reselection priorities under different RATs based on the RAT priority order to complete cell reselection.

[0083] It should be understood that Figure 3 The division of each module in the system embodiment is only a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or physically separated. And these units can all be implemented in the form of software calling through processing elements; they can also be all implemented in the form of hardware; some units can also be implemented in the form of processing elements calling software, and some units can be implemented in the form of hardware.

[0084] Since the implementation principle of the cell reselection system for solving the problem of frequency reselection priorities being the same under different RATs has been described in the aforementioned embodiments, it will not be repeated here.

[0085] In one embodiment, the cell reselection evaluation is performed for frequencies with the same or different reselection priorities under different RATs based on the RAT priority order to complete the cell reselection, including: determining whether the current evaluation conditions for a new round of frequency cell reselection are met; if so, performing the frequency cell reselection evaluation operation for this round based on the RAT priority order, and if the frequency cell reselection evaluation for this round fails, re-determining whether the current evaluation conditions for a new round of frequency cell reselection are met; if not, the cell reselection fails and the process ends.

[0086] In one embodiment, the evaluation conditions for a new round of frequency cell reselection include: determining whether there are any frequencies that have not been evaluated for cell reselection; if so, the evaluation conditions for a new round of frequency cell reselection are met; if not, the evaluation conditions for a new round of frequency cell reselection are not met.

[0087] In one embodiment, the frequency cell reselection evaluation operation includes: selecting a frequency with the highest reselection priority among the frequencies that have never been reselected as an alternative frequency; determining whether each alternative frequency belongs to a different RAT; if they belong to the same RAT, executing a normal frequency cell reselection evaluation process; if they belong to different RATs, executing a RAT priority frequency cell reselection evaluation process based on the RAT priority order.

[0088] In one embodiment, the RAT priority frequency cell reselection evaluation process includes: executing the target frequency cell reselection evaluation process according to the RAT priority order; wherein the target frequency selection process includes: selecting the alternative frequency of the current highest priority RAT as the target frequency, and performing a reselection evaluation on the cell of the target frequency; determining whether the corresponding cell can be found; if so, executing the first reselection success judgment process; if not, returning to determine whether the current evaluation conditions for a new round of frequency cell reselection are met.

[0089] In one embodiment, the reselection success judgment process includes: detecting whether a broadcast signal that meets the requirements can be received from the corresponding cell; if so, the reselection is successful and the process ends; if not, the frequency point is removed from the alternative frequency points, and the target frequency point cell reselection evaluation process is returned to execute.

[0090] In one embodiment, the normal frequency cell reselection evaluation process includes: reselection evaluation of all cells of each alternative frequency; detecting whether a broadcast signal that meets the requirements can be received from the corresponding cell; if so, the reselection is successful and the process ends; if not, returning to determine whether the current evaluation conditions for a new round of frequency cell reselection are met.

[0091] The method for reselecting cells with the same frequency reselection priority under different RATs provided by the embodiment of the present invention can be implemented on the terminal side or the server side. As for the hardware structure of the terminal device, please refer to Figure 4 , is an optional hardware structure diagram of an electronic terminal 1000 provided in an embodiment of the present invention. The terminal 1000 may be a mobile phone, a computer device, a tablet device, a personal digital processing device, a factory background processing device, etc. The terminal 1000 includes: at least one processor 1001, a memory 1002, at least one network interface 10010 and a user interface 10010. The various components in the device are coupled together through a bus system 1005. It can be understood that the bus system 1005 is used to realize the connection and communication between these components. In addition to the data bus, the bus system 1005 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, in Figure 4 In the specification, various buses are labeled as bus systems.

[0092] Among them, the user interface 10010 may include a display, keyboard, mouse, trackball, click gun, keys, buttons, touch pad or touch screen, etc.

[0093] It is understood that the memory 1002 can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), which is used as an external cache. By way of exemplary but not limiting explanation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM). The memory described in the embodiments of the present invention is intended to include but is not limited to these and any other suitable categories of memory.

[0094] The memory 1002 in the embodiment of the present invention is used to store various categories of data to support the operation of the terminal 1000. Examples of these data include: any executable program for operating on the terminal 1000, such as an operating system 10021 and an application 10022; the operating system 10021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application 10022 may include various applications, such as a media player (MediaPlayer), a browser (Browser), etc., for implementing various application services. The method for solving the cell reselection with the same frequency reselection priority under different RATs provided in the embodiment of the present invention may be included in the application 10022.

[0095] The method disclosed in the above embodiment of the present invention can be applied to the processor 1001, or implemented by the processor 1001. The processor 1001 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 1001 or the instruction in the form of software. The above processor 1001 may be a general processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The processor 1001 can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiment of the present invention. The general processor 1001 can be a microprocessor or any conventional processor, etc. In combination with the steps of the accessory optimization method provided in the embodiment of the present invention, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium, which is located in a memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0096] In an exemplary embodiment, the terminal 1000 may be implemented by one or more application specific integrated circuits (ASIC), DSP, programmable logic device (PLD), complex programmable logic device (CPLD) to execute the aforementioned method.

[0097] Those skilled in the art can understand that all or part of the steps of implementing the above-mentioned method embodiments can be completed by hardware related to the computer program. The aforementioned computer program can be stored in a computer-readable storage medium. When the program is executed, the steps of the above-mentioned method embodiments are executed; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

[0098] In the embodiments provided in the present application, the computer readable and writable storage medium may include a read-only memory, a random access memory, an EEPROM, a CD-ROM or other optical disk storage device, a disk storage device or other magnetic storage device, a flash memory, a USB flash drive, a mobile hard disk, or any other medium that can be used to store a desired program code in the form of an instruction or data structure and can be accessed by a computer. In addition, any connection can be appropriately referred to as a computer-readable medium. For example, if the instruction is sent from a website, a server or other remote source using a coaxial cable, an optical fiber cable, a twisted pair, a digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwaves, the coaxial cable, optical fiber cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwaves are included in the definition of the medium. However, it should be understood that computer readable and writable storage media and data storage media do not include connections, carriers, signals, or other temporary media, but are intended to be non-temporary, tangible storage media. Disk and disc, as used in this application, includes compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers.

[0099] In summary, the present invention solves the problem of cell reselection with the same frequency reselection priority under different RATs by performing cell reselection evaluation for frequencies with the same or different reselection priorities under different RATs based on the set RAT priority order, so as to complete cell reselection. The present invention does not modify the reselection priority of the network, but selects a cell according to the priority RAT, as close as possible to the original intention of the network to set the reselection priority, so as to achieve the purpose of the optimal solution and improve the user experience. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has a high industrial utilization value.

[0100] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A method for reselecting cells with the same frequency reselection priority under different RATs, characterized in that: Applied to a terminal device, the method comprises: Set the RAT priority order; wherein the RAT priority order is to sort multiple different RATs in order of priority; Based on the RAT priority order, a cell reselection evaluation is performed for frequency points with the same or different reselection priorities under different RATs to complete the cell reselection.

2. The method for reselecting cells with the same frequency reselection priority under different RATs according to claim 1, characterized in that: The performing cell reselection evaluation for frequency points with the same or different reselection priorities under different RATs based on the RAT priority order to complete the cell reselection includes: Determine whether the current evaluation conditions for a new round of frequency cell reselection are met; If yes, then the frequency cell reselection evaluation operation of this round is performed based on the RAT priority order, and if the frequency cell reselection evaluation of this round fails, it is re-determined whether the current round meets the evaluation conditions for a new round of frequency cell reselection; If not, the cell reselection fails and the process ends.

3. The method for reselecting cells with the same frequency reselection priority under different RATs according to claim 2, characterized in that: The evaluation conditions for the new round of frequency cell reselection include: Determine whether there are any frequencies that have not been evaluated for cell reselection; If yes, it meets the new round of frequency cell reselection evaluation conditions; If not, it does not meet the evaluation conditions for a new round of frequency cell reselection.

4. The method for reselecting cells with the same frequency reselection priority under different RATs according to claim 3, characterized in that: The frequency cell reselection evaluation operation includes: Select a frequency with the highest reselection priority from among the frequencies that have not been reselected as the candidate frequency; Determine whether each candidate frequency point belongs to a different RAT; If they belong to the same RAT, the normal frequency cell reselection evaluation process is performed; If they belong to different RATs, the RAT priority frequency cell reselection evaluation process is executed based on the RAT priority order.

5. The method for reselecting cells with the same frequency reselection priority under different RATs according to claim 4, characterized in that: The RAT priority frequency cell reselection evaluation process includes: According to the RAT priority order, a target frequency cell reselection evaluation process is executed; wherein the target frequency selection process includes: selecting a candidate frequency of the RAT with the highest current priority as the target frequency, and reselecting the cell of the target frequency; Determine whether the corresponding cell can be found; If yes, execute the first re-election success judgment process; If not, the process returns to determine whether the current evaluation conditions for a new round of frequency cell reselection are met.

6. The method for reselecting cells with the same frequency reselection priority under different RATs according to claim 5, characterized in that: The re-election success judgment process includes: Detect whether a broadcast signal meeting the requirements can be received from the corresponding cell; If it can, the re-election is successful and the process ends; If not, remove the frequency from the candidate frequencies and return to the target frequency cell reselection evaluation process.

7. The method for reselecting cells with the same frequency reselection priority under different RATs according to claim 4, characterized in that: The normal frequency cell reselection evaluation process includes: Re-evaluate all cells at each candidate frequency point; Detect whether a broadcast signal meeting the requirements can be received from the corresponding cell; If it can, the re-election is successful and the process ends; If not, the process returns to determine whether the current evaluation conditions for a new round of frequency cell reselection are met.

8. A cell reselection system for reselecting frequencies with the same priority in different RATs, characterized in that: The system comprises: A priority RAT setting module is used to set a RAT priority order; wherein the RAT priority order is to sort multiple different RATs according to their priorities; The cell reselection evaluation module is connected to the priority RAT setting module and is used to perform cell reselection evaluation for frequency points with the same or different reselection priorities under different RATs based on the RAT priority order to complete cell reselection.

9. A terminal device, characterized in that: include: one or more memories and one or more processors; The one or more memories are used to store computer programs; The one or more processors, connected to the memory, are configured to run the computer program to perform the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: A computer program is stored, and when the computer program is executed by one or more processors, the method according to any one of claims 1 to 7 is performed.

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