Overseas country network searching method, device, equipment and medium

Abstract

The invention provides an overseas country network searching method and device, equipment and a medium. The overseas country network searching method comprises the following steps: acquiring current geographical location information of a terminal; if the terminal is located in an overseas country, reading a nonvolatile flash memory of the terminal and public land mobile network list information in a global user identification card; the peer-to-peer home public land mobile network list configured by the user in the nonvolatile flash memory and the peer-to-peer home public land mobile network list in the global subscriber identity module card are combined to serve as the peer-to-peer home public land mobile network list in the priority of the public land mobile network; the public land mobile networks are searched and selected according to the priority sequence of the public land mobile networks, and the priority of the peer-to-peer home public land mobile network list configured by the user is higher than that of the peer-to-peer home public land mobile network list of the global subscriber identity module card. The network searching time can be greatly shortened, the network searching power consumption of the terminal is reduced, the service life of the terminal is prolonged, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the field of wireless communications, and in particular to an overseas country network search method, device, equipment and medium. Background Art

[0002] PLMN (Public Land Mobile Network) is a form of organization for mobile communication networks. The PLMN search mechanism refers to the process of how a terminal device (such as a mobile phone) searches and selects a suitable PLMN for registration and connection when it is turned on or needs to switch networks. In the PLMN automatic search and selection process, when the terminal (User Equipment, UE) is powered on, multiple PLMN information will be obtained from the non-volatile flash memory (NV Flash) and the universal subscriber identity module (USIM), such as registered PLMN (RPLMN), equivalent PLMNs (EPLMNs), home PLMN (HPLMN), equivalent home PLMNs (EHPLMNs), user controlled PLMNs (UPLMNs), operator controlled PLMNs (OPLMNs), etc. During the PLMN selection process, the UE will search and register in the order of priority described above. If a PLMN is unavailable or cannot be registered, the UE will try the next PLMN with a higher priority until an available network is found or all options are exhausted. Domestic operators' USIM cards are strongly bound to operators, and the resident PLMNs are basically HPLMN or EHPLMNs. The high-priority network search process described in the above protocol helps the UE quickly find and access the optimal network.

[0003] However, foreign card vendors and operators are basically independent. The HPLMN and EHPLMN in the UISM card are preset during production, but it is not completely predictable in which country or operator the USIM card will be activated and used. The HPLMN and EHPLMNs in the UISM card may not exist in the current area. If a high-priority network search is performed according to the process described in the above protocol, the life of the Narrow Band Internet of Things (NB-IoT) will be fatal.

[0004] Therefore, it is necessary to propose a network search method, device, equipment and medium for overseas countries to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a network search method, device, equipment and medium for overseas countries, so as to improve the problems of slow network search speed and high network search power consumption of existing terminals in overseas countries.

[0006] In a first aspect, the present invention provides a network search method for overseas countries, which is applied to a terminal. The network search method for overseas countries includes: Obtain the current geographical location information of the terminal; If the terminal is located in an overseas country, read the public land mobile network list information in the non-volatile flash memory and the global user identification card of the terminal, and merge the peer home public land mobile network list configured by the user in the non-volatile flash memory and the peer home public land mobile network list in the global user identification card as the peer home public land mobile network list in the priority of the public land mobile network, and search and select the public land mobile network according to the priority order of the public land mobile network, where the priority of the peer home public land mobile network list configured by the user is higher than the priority of the peer home public land mobile network list of the global user identification card.

[0007] The beneficial effect of the network search method for overseas countries of the present invention is that: in view of the situation that the home public land mobile network list and the peer home public land mobile network list in the global user identification card may not exist in the overseas country where the terminal is currently located, the present invention adds the peer home public land mobile network list configured by the user to the peer home public land mobile network list in the priority of the public land mobile network, so that when searching and selecting the public land mobile network, the goal of greatly reducing the network search time, reducing the network search power consumption of the terminal, extending the service life of the terminal, and improving the user experience can be achieved.

[0008] In a possible embodiment, when the terminal conducts the first public land mobile network search and selection in the current overseas country or the current overseas region, the registered public land mobile network list and the peer home public land mobile network list in the priority of the public land mobile network have the same highest priority.

[0009] The beneficial effect is that: when conducting the first network search in the current overseas country or the current overseas region, by preferentially searching the peer home public land mobile network list, the terminal can find a suitable public land mobile network and complete registration faster, reducing the network search time, and thus reducing the network search power consumption of the terminal.

[0010] In a possible embodiment, before searching and selecting a public land mobile network according to the priority of the public land mobile network, By adjusting the search cycle configuration of the timer for the higher priority public land mobile network search cycle when in an overseas country, making the search cycle of the timer when in an overseas country greater than the search cycle of the timer when in the domestic country, so as to lengthen the duration of the timer; and / or, In response to a user's close instruction for periodic high-priority network search, turn off the network search function of the timer for the higher priority public land mobile network search cycle.

[0011] Its beneficial effect is that: by adjusting the search cycle of the timer, making the periodic high-priority network search cycle of the terminal when in an overseas country greater than the periodic high-priority network search cycle when in the domestic country, it is possible to avoid frequent periodic high-priority network search operations, thereby reducing the network search power consumption of the terminal. In addition, the user can, according to their own needs, choose to turn off the high-priority network search function, and the terminal will no longer perform periodic high-priority network search operations, thereby significantly reducing the network search power consumption of the terminal.

[0012] In a possible embodiment, the configuration method of the peer home public land mobile network configured by the user includes: In response to receiving a list of peer home public land mobile networks configured by the user, store the list of peer home public land mobile networks configured by the user in the non-volatile flash memory of the terminal.

[0013] Its beneficial effect is that: the user can configure the peer home public land mobile networks of this overseas country that are known in advance into the non-volatile flash memory, and can preferentially search and select the peer home public land mobile networks configured by the user when searching for a network, thereby reducing the network search time and the network search power consumption of the terminal.

[0014] In a possible embodiment, after camping on and registering to a target public land mobile network, store the target public land mobile network in the list of registered public land mobile networks in the non-volatile flash memory of the terminal.

[0015] Its beneficial effect is that: when selecting a network search next time, it is possible to preferentially search for the public land mobile network that has been registered and camped on, thereby reducing the network search time and the network search power consumption of the terminal.

[0016] In a possible embodiment, in the list of registered public land mobile networks, each registered public land mobile network is sorted according to the residence time interval of the residence timestamp from the current moment, and the shorter the residence time interval, the higher the priority of the corresponding registered public land mobile network.

[0017] The beneficial effects are as follows: When searching for and selecting a network, the recently used registered public land mobile network will be preferentially searched, thereby reducing the network search time and the network search power consumption of the terminal.

[0018] In a possible embodiment, when the storage space of the registered public land mobile network list is greater than or equal to a preset storage threshold, the residence time intervals of the registered public land mobile networks are compared to obtain the registered public land mobile network with the longest residence time interval, and the registered public land mobile network with the longest residence time interval is deleted.

[0019] The beneficial effects are as follows: When the storage space of the registered public land mobile network list reaches or exceeds the preset storage threshold, by deleting the public land mobile networks that have not been searched and resided for a long time, there will be enough storage space to store new registered public land mobile networks.

[0020] In a second aspect, an overseas country network search device is further provided in an embodiment of the present invention. The device includes modules / units that execute the method according to any possible design in the first aspect above. These modules / units can be implemented by hardware or by hardware executing corresponding software.

[0021] In a third aspect, an electronic device is further provided in an embodiment of the present invention, including a processor and a memory. Among them, the memory is used to store one or more computer programs; when the one or more computer programs stored in the memory are executed by the processor, the electronic device can implement the method according to any possible design in the first aspect above.

[0022] In a fourth aspect, a computer-readable storage medium is further provided in an embodiment of the present invention. The computer-readable storage medium includes a computer program. When the computer program runs on an electronic device, the electronic device executes the method according to any possible design in the first aspect above.

[0023] In a fifth aspect, a computer program product is further provided in an embodiment of the present invention. When the computer program product runs on an electronic device, the electronic device executes the method according to any possible design in any of the above aspects. Description of the Drawings

[0024] Figure 1 It is a schematic flowchart of the overseas country network search method of the present invention.

[0025] Figure 2 It is a schematic diagram of the overseas country network search device of the present invention.

[0026] Figure 3 It is a schematic structural diagram of the electronic device of the present invention. Detailed Embodiments

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0028] Narrow Band Internet of Things (NB-IoT) has become an important branch of the Internet of Everything. Built on the cellular network, NB-IoT only consumes about 180 KHz of bandwidth and can be directly deployed on the Global System for Mobile Communications (GSM) network, Universal Mobile Telecommunications System (UMTS) network or Long Term Evolution (LTE) network to reduce deployment costs and achieve smooth upgrades.

[0029] NB-IoT is an emerging technology in the IoT field, supporting cellular data connections for low-power devices in wide area networks, and is also called Low Power Wide Area Network (LPWAN). NB-IoT supports efficient connections for devices with long standby times and high requirements for network connections. It is said that the battery life of NB-IoT devices can be increased by at least 10 years, and at the same time, it can also provide very comprehensive indoor cellular data connection coverage. Low power consumption and long life are significant features that distinguish NB-IoT from other standards. Among them, the network search duration when starting up is an important indicator to measure power consumption. The shorter the network search delay at startup, the lower the power consumption.

[0030] Abroad, card merchants and operators are usually independently operated. Card merchants are responsible for producing USIM cards, while operators are responsible for providing network services. When foreign card merchants produce Universal Subscriber Identity Module (USIM) cards, the USIM cards will preset HPLMN (Home PLMN) and EHPLMN (Equivalent Home PLMN) during production, but these information are not bound to specific operators. The USIM card does not have a specific home network during production and will only be bound to a specific operator network when activated. If a USIM card is produced in a certain country but finally used in another country, the home PLMN and equivalent home PLMN may not exist in the current region. If the terminal searches for networks with high priority according to the PLMN priority order of the protocol, the terminal will first search for HPLMN and EHPLMN. If these PLMNs do not exist in the current region, the terminal will continuously try to connect to these non-existent networks, resulting in an extended network search time and increased network search power consumption, thus having a fatal impact on the lifespan of NB-IoT devices.

[0031] In view of the problems existing in the above technologies, embodiments of the present invention provide a network search method for overseas countries, which is applied to a terminal. Refer to Figure 1 , the network search method for overseas countries includes: S101: Obtain the current geographical location information of the terminal; S102: If the terminal is located in an overseas country, read the public land mobile network list information in the non-volatile flash memory and the global subscriber identity module of the terminal, and merge the peer home public land mobile network list configured by the user in the non-volatile flash memory and the peer home public land mobile network list in the global subscriber identity module as the peer home public land mobile network list in the priority of the public land mobile network, and search and select the public land mobile network according to the priority order of the public land mobile network, where the priority of the peer home public land mobile network list configured by the user is higher than the priority of the peer home public land mobile network list in the global subscriber identity module.

[0032] When the terminal is in a foreign country, the traditional way of searching for a public land mobile network will attempt to register with each level of public land mobile network one by one according to the priority order of the public land mobile network. Since not all public land mobile networks are available in foreign countries, this is not only time-consuming but also very inefficient, increasing the power consumption of network search. In the solution of this embodiment, the user is allowed to flexibly add the required home public land mobile network according to the known network situation in the current area. By merging the list of home public land mobile networks configured by the user in the non-volatile flash memory and the list of home public land mobile networks in the global user identification card as the list of home public land mobile networks in the priority of the public land mobile network. In other words, the user can flexibly adjust the list of home public land mobile networks according to the current area situation. The adjusted list of home public land mobile networks enables the terminal to have more reliable options when selecting a network and can connect to a suitable network more efficiently, thus improving the efficiency of network connection.

[0033] Furthermore, since the priority of the list of home public land mobile networks is relatively high, and the priority of the list of home public land mobile networks configured by the user is higher than the priority of the list of home public land mobile networks in the global user identification card, the list of home public land mobile networks configured by the user can be searched more quickly during network search. The terminal can establish a network connection faster, reducing the user waiting time, avoiding blindly searching all possible public land mobile networks, improving the network search efficiency, and enhancing the user experience. Therefore, the solution of this embodiment can effectively solve the problem that the time required for network search is relatively long due to the non-existence of the list of home public land mobile networks and the list of home public land mobile networks in the global user identification card in the foreign country where the terminal is currently located during the traditional network search process. In an NB-IoT terminal device, the network search process will consume a certain amount of power. In this embodiment, by optimizing the network search strategy and reducing unnecessary network search operations, the power consumption of the terminal during the entire network search process is effectively reduced, and the service life of the terminal is extended.

[0034] In one embodiment, when the terminal makes the first public land mobile network search selection in the current foreign country or the current foreign region, the list of registered public land mobile networks and the list of home public land mobile networks in the priority of the public land mobile network have the same highest priority.

[0035] A public land mobile network is usually country- or region-specific and has geographical limitations. For example, when a terminal moves from one country to another, the previously registered public land mobile network may not provide services in that country. Therefore, even if the terminal stores the information of the previously registered public land mobile network, it cannot effectively connect to the network in that overseas country. In this embodiment, by setting the list of registered public land mobile networks and the list of peer home public land mobile networks side by side with the highest priority, the terminal will first attempt to search these two lists of public land mobile networks when searching for a network, reducing the number of times and the time for the terminal to search for other non-priority networks, which can greatly speed up the network search process and thus improve the efficiency of network search.

[0036] In another embodiment, when the terminal makes the first public land mobile network search selection in the current overseas country or current overseas region, the priority of the list of registered public land mobile networks in the priority of the public land mobile network is higher than the high priority of the list of peer home public land mobile networks.

[0037] Since the information of the previously registered public land mobile network may not be able to effectively connect to the network in that overseas country. In this embodiment, by increasing the priority of the list of peer home public land mobile networks and making the list of peer home public land mobile networks configured by the user the highest priority, when making a public land mobile network search selection, the terminal can first search the list of peer home public land mobile networks configured by the user, so as to quickly and successfully achieve network registration, reducing the number of times and the time for the terminal to search for other non-priority networks, thereby improving the efficiency of network search and enhancing the user's satisfaction and experience.

[0038] Abroad, the Higher Priority PLMN SearchPeriod Timer (T_HPPLMN) periodically starts a better priority network search. If the home PLMN and the equivalent home PLMN do not exist in the current area, when the terminal periodically starts a higher priority network search according to the timing of T_HPPLMN, it may frequently attempt to connect to these non-existent networks, resulting in an extended network search time, increased power consumption of the terminal during network search, and affecting the user experience. To solve this technical problem, the present invention improves the periodic high-priority network search.

[0039] In one embodiment, before searching and selecting a public land mobile network according to the priority of the public land mobile network, by adjusting the search period configuration of the timer for the higher priority public land mobile network search period in an overseas country, making the search period of the timer in an overseas country greater than the search period of the timer in the country, so as to lengthen the duration of the timer; and / or, In response to a user's instruction to turn off the periodic high-priority network search, the network search function of the timer for the higher-priority public land mobile network search period is turned off.

[0040] The search period of the timer for the higher-priority public land mobile network search period determines the time interval at which the terminal periodically searches for the higher-priority public land mobile network. In this embodiment, by increasing the search period of the timer in overseas countries, the terminal is prevented from performing periodic high-priority network search operations frequently, the network search power consumption of the terminal is reduced, and the service life of the terminal is extended. The user can, according to the known network situation in the current area. For example, when the user knows that the home public land mobile network list and the peer home public land mobile network list in the global subscriber identity module do not exist in the overseas country where the terminal is currently located, the user can choose to turn off the network search function of the timer for the higher-priority public land mobile network search period. The terminal will no longer perform periodic high-priority network search operations, avoiding the additional power consumption caused by redundant network search processes and effectively extending the battery life of the terminal. In addition, due to the complexity and uncertainty of the network environment in overseas countries, whether the period of the periodic high-priority network search is lengthened or the periodic high-priority network search operation is turned off, it is possible to avoid selecting a network with weak or unstable signals due to frequent network searches, thereby improving the quality and stability of the network connection, and also avoiding network resource waste and network fees caused by frequent network searches.

[0041] In one embodiment, the configuration method of the peer home public land mobile network table configured by the user includes: In response to receiving the peer home public land mobile network list configured by the user, the peer home public land mobile network list configured by the user is stored in the non-volatile flash memory of the terminal.

[0042] In this embodiment, the user configures the peer home public land mobile network of the overseas country in advance into the non-volatile flash memory so that when searching and selecting a public land mobile network, the peer home public land mobile network list configured by the user can be preferentially searched, enabling the terminal to find a suitable public land mobile network faster and complete registration, reducing the network search time, and thus reducing the network search power consumption of the terminal.

[0043] In some embodiments, when configuring the peer home public land mobile network list, in response to the configuration information of the peer home public land mobile network input by the user through methods such as AT commands and operating the user interface, the configuration information is added to the peer home public land mobile network list configured by the user.

[0044] In a specific embodiment, when a user configures a peer-to-peer public land mobile network by operating a user interface, the peer-to-peer public land mobile network corresponding to the overseas country or overseas region where the terminal is currently located is searched and obtained, and options for the peer-to-peer public land mobile network corresponding to the overseas country or overseas region where the terminal is currently located are displayed. In response to the user's selection operation of the peer-to-peer public land mobile network of the overseas country or overseas region where the terminal is currently located, the peer-to-peer public land mobile network selected by the user is added to the peer-to-peer public land mobile network list configured by the user.

[0045] In a specific embodiment, when a user configures a peer-to-peer public land mobile network through an AT command, the peer-to-peer public land mobile network corresponding to the overseas country or overseas region where the terminal is currently located is searched and obtained, and the peer-to-peer public land mobile network corresponding to the overseas country or overseas region where the terminal is currently located is added to the peer-to-peer public land mobile network list configured by the user.

[0046] The terminal pre-stores the information of the corresponding public land mobile networks of some overseas countries or regions. When the user configures the public land mobile network, more search information of public land mobile networks is provided through user selection or active addition. The terminal can select networks more flexibly in overseas countries or regions, reduce the search time, reduce the power consumption of the terminal, and improve the user experience.

[0047] It should be noted that the merging operation and adding operation of the peer-to-peer home public land mobile network in the present invention include merging and deduplication operations, so as to avoid repeated searches for the same peer-to-peer home public land mobile network.

[0048] In addition, NB-IoT is aimed at the Internet of Things, and its business model is generally relatively specific and single. In order to simplify business and power consumption, the terminal is generally powered on and connected to the Internet only when there is business interaction with the server, and immediately shuts down after sending data, waiting for the next business trigger point, so as to minimize power consumption. However, this means that the previous public land mobile network and the current public land mobile network are not in the same region or country. In order to solve this technical problem, the present invention improves the storage of registered public land mobile networks.

[0049] In one embodiment, after camping on and registering on the target public land mobile network, the target public land mobile network is stored in a registered public land mobile network list in a non-volatile flash memory of the terminal.

[0050] In this embodiment, the public land mobile network to which the device camps and registers is stored in the registered public land mobile network list in the non-volatile flash memory, so as to update the registered public land mobile network list in a timely manner, ensuring that when searching for a network for selection next time, the public land mobile network that has recently camped and registered can be preferentially searched. Combined with the search for the peer home public land mobile network configured by the user, the terminal can find a suitable public land mobile network faster and complete the registration, reducing the network search time and accelerating the network search and camping process, thereby reducing the network search power consumption of the terminal, which is applicable to scenarios where the device moves frequently between different locations.

[0051] In one embodiment, in the registered public land mobile network list, each registered public land mobile network is sorted according to the residence time interval from the residence timestamp to the current moment, and the shorter the residence time interval, the higher the priority of the corresponding registered public land mobile network.

[0052] In this embodiment, each registered public land mobile network is sorted according to the residence time interval, ensuring that the registered public land mobile network used recently has a higher priority. Therefore, when searching for and selecting a network, the registered public land mobile network used recently will be preferentially searched, enabling the terminal to connect to a suitable public land mobile network faster, reducing the network search time, and thus reducing the network search power consumption of the terminal.

[0053] In one embodiment, when the storage space of the registered public land mobile network list is greater than or equal to the preset storage threshold, the residence time intervals of each registered public land mobile network are compared to obtain the registered public land mobile network with the longest residence time interval, and the registered public land mobile network with the longest residence time interval is deleted.

[0054] In this embodiment, by comparing the residence time intervals of each registered public land mobile network, the storage space can be effectively managed. When the storage space reaches the preset threshold, deleting the network with the longest residence time interval can make room for new registered public land mobile networks, ensuring the effective utilization of the storage space.

[0055] In another embodiment, the registered public land mobile network list is cleared according to the set clearing time interval, and the registered public land mobile network with a residence time interval greater than or equal to the preset residence interval is deleted.

[0056] In this embodiment, by setting a cleaning time interval, the registered public land mobile network list is regularly cleaned and maintained, and the registered public land mobile networks that have not been resident for a long time are deleted, so as to ensure that the storage space is always occupied by the network information used recently, improving the storage efficiency. At the same time, it can also reduce the number of registered public land mobile networks that the terminal needs to search when searching for a network, ensure that the terminal can find a suitable network faster, reduce unnecessary network search operations, reduce the network search time, improve the network connection efficiency, optimize the network search selection process, and reduce the network search power consumption of the terminal.

[0057] The overseas country network search method of the present invention is an improved method for implementing the protocol standard. Through this improved technical solution, the terminal can accelerate the network search speed in a specific network deployment scenario, so as to achieve the purpose of reducing the power consumption of the terminal. At the same time, this solution is an incremental improvement to the protocol network search process. Under reasonable operation configurations of users, it will not affect the existing process, and this solution can be used as a general solution.

[0058] In addition, the present invention also proposes an overseas country network search device, see Figure 2 , the device includes: a location acquisition module 201, configured to acquire the current geographical location information of the terminal; an overseas network search module 202, configured to, if the terminal is located in an overseas country, read the public land mobile network list information in the non-volatile flash memory and the global user identity card of the terminal, and merge the peer home public land mobile network list configured by the user in the non-volatile flash memory and the peer home public land mobile network list in the global user identity card as the peer home public land mobile network list in the priority of the public land mobile network, and search and select the public land mobile network according to the priority order of the public land mobile network, wherein the priority of the peer home public land mobile network list configured by the user is higher than the priority of the peer home public land mobile network list in the global user identity card. All relevant contents of each step involved in the above method embodiment can be cited in the function description of the corresponding functional module, and will not be repeated here.

[0059] In some other embodiments of the present invention, embodiments of the present invention disclose an electronic device, see Figure 3 , the electronic device may include: one or more processors 301; a memory 302; a display 303; one or more applications (not shown); and one or more computer programs 304, and the above components may be connected through one or more communication buses 305. Wherein the one or more computer programs 304 are stored in the above memory 302 and are configured to be executed by the one or more processors 301, and the one or more computer programs 304 include instructions, and the above instructions can be used to execute as Figure 1 and Figure 2 and the respective steps in the corresponding embodiments.

[0060] From the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of description, only the division of the above functional modules is used as an example. In actual applications, the above functions can be allocated to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. For the specific working processes of the systems, devices, and units described above, reference can be made to the corresponding processes in the foregoing method embodiments, which will not be elaborated here.

[0061] In each embodiment of the present invention, the functional units can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0062] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiments of the present invention, in essence, or the part that contributes to the prior art, or all or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods of the various embodiments of the present invention. The foregoing storage medium includes: various media such as flash memory, mobile hard disk, read-only memory, random access memory, magnetic disk, or optical disc that can store program codes.

[0063] Although the embodiments of the present invention have been described in detail above, it is obvious to those skilled in the art that various modifications and changes can be made to these embodiments. However, it should be understood that such modifications and changes fall within the scope and spirit of the present invention as defined in the claims. Moreover, the present invention described herein can have other embodiments and can be implemented or realized in various ways. Unless otherwise defined, the technical terms or scientific terms used herein should have the ordinary meaning understood by those of ordinary skill in the art to which the present invention pertains. The words such as "including" used herein mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

Claims

1. A method for searching networks in overseas countries, characterized in that: Applied to a terminal, the overseas country network search method includes: Acquire the current geographical location information of the terminal; If the terminal is located in an overseas country, read the public land mobile network list information in the non-volatile flash memory and the global subscriber identity card of the terminal, merge the peer-to-peer public land mobile network list configured by the user in the non-volatile flash memory and the peer-to-peer public land mobile network list in the global subscriber identity card as the peer-to-peer public land mobile network list in the priority of the public land mobile network, and search and select the public land mobile network according to the priority order of the public land mobile network, wherein the priority of the peer-to-peer public land mobile network list configured by the user is higher than the priority of the peer-to-peer public land mobile network list of the global subscriber identity card.

2. The overseas country network search method according to claim 1, characterized in that: When the terminal performs the first public land mobile network search and selection in the current overseas country or the current overseas region, the registered public land mobile network list and the peer home public land mobile network list in the priorities of the public land mobile networks have the same highest priority.

3. The overseas country network search method according to claim 1, characterized in that: Before searching and selecting a public land mobile network according to the priority of the public land mobile network, By adjusting the search period configuration of the timer of the higher priority public land mobile network search period in the overseas country, the search period of the timer in the overseas country is greater than the search period of the timer in the country; and / or, In response to a user instruction to turn off the periodic high-priority network search, the network search function of the timer of the higher-priority public land mobile network search period is turned off.

4. The overseas country network search method according to claim 1, characterized in that: The configuration method of the user-configured peer-to-peer home public land mobile network table includes: In response to receiving the peer home public land mobile network list configured by the user, the peer home public land mobile network list configured by the user is stored in the non-volatile flash memory of the terminal.

5. The overseas country network search method according to any one of claims 1-4, characterized in that: After residing and registering on the target public land mobile network, the target public land mobile network is stored in a registered public land mobile network list in the non-volatile flash memory of the terminal.

6. The overseas country network search method according to claim 5, characterized in that: In the registered public land mobile network list, each registered public land mobile network is sorted according to the residence time interval between the residence time stamp and the current time. The shorter the residence time interval, the higher the priority of the corresponding registered public land mobile network.

7. The overseas country network search method according to claim 6, characterized in that: When the storage space of the registered public land mobile network list is greater than or equal to a preset storage threshold, the dwell time intervals of the registered public land mobile networks are compared to obtain the registered public land mobile network with the longest dwell time interval, and the registered public land mobile network with the longest dwell time interval is deleted.

8. An overseas country network search device, characterized in that: Applied to a terminal, the device comprises: A location acquisition module, used to acquire the current geographical location information of the terminal; The overseas network search module is used for reading the public land mobile network list information in the non-volatile flash memory and the global user identity card of the terminal if the terminal is located in an overseas country, merging the peer-to-peer public land mobile network list configured by the user in the non-volatile flash memory and the peer-to-peer public land mobile network list in the global user identity card as the peer-to-peer public land mobile network list in the priority of the public land mobile network, and searching and selecting the public land mobile network according to the priority order of the public land mobile network, wherein the priority of the peer-to-peer public land mobile network list configured by the user is higher than the priority of the peer-to-peer public land mobile network list of the global user identity card.

9. An electronic device, characterized in that: include: A processor and a memory, wherein the memory is used to store a computer program; The processor is configured to execute the computer program stored in the memory so as to enable the electronic device to perform the method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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