CN107911812B - Method for adjusting preferred public land mobile network PPLMN list and mobile terminal - Google Patents

Abstract

Embodiments of the present invention provide a preferred public land mobile network PPLMN list adjustment method and mobile terminal, wherein the method includes: determining a roaming destination planned by a user; adjusting the PPLMN list of the mobile terminal according to the roaming destination, and the adjusted PPLMN list Contains the identities of all public land mobile network PLMNs that the mobile terminal subscribes to with the roaming destination. Through the embodiments of the present invention, the mobile terminal can search the network through the identities of all PLMNs contracted with the roaming destination, thereby reducing the time-consuming of the mobile terminal's network search at the roaming destination, and improving the network search efficiency and network access efficiency.

Description

Preferred public land mobile network PPLMN list adjustment method and mobile terminal

technical field

The present invention relates to the field of communication technologies, and in particular, to a method for adjusting a PPLMN list of a preferred public land mobile network and a mobile terminal.

Background technique

Public Land Mobile Network (PLMN, Public Land Mobile Network) is a network established and operated by the government or its approved operators to provide the public with land mobile communication services. This network is usually interconnected with the public switched telephone network to form a communications network on a regional or national scale.

The identification of the public land mobile network is usually a string of digital codes. For example, the network identification of China Mobile's PLMN is 46000, and the network identification of China Unicom's PLMN is 46001. When the mobile terminal is powered on, it needs to search for available PLMNs and register to connect to Enter the PLMN, and conduct convenient and fast communication through the PLMN.

Considering that the mobile terminal is roaming, in the prior art, a PPLMN (Prefer PLMN, preferred PLMN) list is usually stored in the mobile terminal, which is used to provide the mobile terminal with a preferred PLMN when the mobile terminal is roaming, which is convenient for moving. The terminal quickly searches and accesses the local network. Among them, since all PLMNs in all countries and regions in the world are recorded in the PPLMN list, the PPLMN list will be too long, the data storage amount will be large, and the data amount limit of the mobile terminal on the PPLMN list will be exceeded. Therefore, in the prior art, usually The preferred PLMNs of various countries and regions are selected and recorded in the PPLMN list, so that the data volume of the PPLMN list can meet the requirements of the mobile terminal.

The inventor found in the research that since the existing PPLMN list records the preferred PLMNs of each country and region, rather than all the PLMNs of each country and region, when the mobile terminal is in a roaming place, if the mobile terminal can search for If the arrived PLMN is not recorded in the PPLMN list, it will prolong the network search time of the mobile terminal and reduce the network search efficiency of the mobile terminal.

It can be seen that, when the mobile terminal performs network search through the existing PPLMN list, the network search takes a long time and the network search efficiency is low.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present invention is to provide a preferred public land mobile network PPLMN list adjustment method and mobile terminal, so as to solve the technical problems of long network search time and low network search efficiency when the mobile terminal performs network search through the existing PPLMN list .

In order to solve the above-mentioned technical problems, the embodiments of the present invention are implemented as follows:

In a first aspect, an embodiment of the present invention provides a method for adjusting a preferred public land mobile network PPLMN list, which is applied to a mobile terminal, including:

Determine the roaming destination planned by the user;

The PPLMN list of the mobile terminal is adjusted according to the roaming destination, and the adjusted PPLMN list includes the identifiers of all public land mobile network PLMNs that the mobile terminal subscribes to with the roaming destination.

In a second aspect, an embodiment of the present invention provides a mobile terminal, including:

a roaming location determination module, used to determine the roaming destination planned by the user;

The list adjustment module is used to adjust the preferred public land mobile network PPLMN list of the mobile terminal according to the roaming destination, and the adjusted PPLMN list contains the identifiers of all the public land mobile network PLMNs signed by the mobile terminal and the roaming destination .

In a third aspect, an embodiment of the present invention provides a mobile terminal, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, the computer program being executed by the processor When executed, the steps of the method for adjusting the PPLMN list of the preferred public land mobile network as described in the first aspect above are realized.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the above-mentioned first aspect is implemented. Steps of a method for adjusting a PPLMN list in a public land mobile network.

With the method for adjusting the PPLMN list of the preferred public land mobile network and the mobile terminal in the embodiment of the present invention, the mobile terminal can dynamically adjust the PPLMN list of the mobile terminal according to the roaming destination planned by the user, so that the mobile terminal can pass all the contracts signed with the roaming destination. The PLMN logo is used to search the network, so as to reduce the time-consuming network search of the mobile terminal at the roaming destination, improve the network search efficiency and network access efficiency, and solve the problem that when the mobile terminal searches the network through the existing PPLMN list, the network search takes a long time. , the technical problem of low efficiency of web search.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments described in the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present invention;

2 is a schematic flowchart of a method for adjusting a PPLMN list provided by an embodiment of the present invention;

3 is a schematic flowchart of a method for adjusting a PPLMN list provided by another embodiment of the present invention;

4 is a schematic flowchart of a method for adjusting a PPLMN list provided by another embodiment of the present invention;

5 is a schematic diagram of a module composition of a mobile terminal according to an embodiment of the present invention;

6 is a schematic diagram of a module composition of a mobile terminal provided by another embodiment of the present invention;

FIG. 7 is a schematic diagram of a hardware structure of a mobile terminal implementing various embodiments of the present invention.

Detailed ways

In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The idea of the embodiments of the present invention is to adjust the PPLMN list used by the mobile terminal according to the roaming location of the mobile terminal, thereby reducing the time consuming of the mobile terminal's network search in the roaming location, and improving the network search efficiency and network access efficiency. Based on this idea, embodiments of the present invention provide a method for adjusting a preferred public land mobile network PPLMN list, a mobile terminal, and a computer-readable storage medium, which will be described in detail below.

First, the English abbreviations and special terms involved in the list adjustment method, the mobile terminal, and the computer-readable storage medium in the embodiments of the present invention are introduced.

PLMN (PublicLandMobileNetwork, public land mobile network), the network is interconnected with the public switched telephone network (PSTN) to form a communication network on a regional or national scale.

The identification of a public land mobile network is usually a string of digital codes. For example, China Mobile's PLMN includes 46000, 46002, and 46007; China Unicom's PLMN includes 46001, 46006; China Telecom's PLMN includes 46003, 46005.

PPLMN (Prefer PLMN, preferred PLMN): the preferred PLMN that the mobile terminal prefers in the case of roaming.

RPLMN (Registered PLMN, registered PLMN): The PLMN registered by the mobile terminal before the last shutdown or disconnection of the network is stored in the running memory of the mobile terminal.

A SIM card (Subscriber Identification Module, user identification card), also known as a mobile phone number or a smart card, is used in a mobile terminal to implement calls and Internet access through the installed SIM card.

A mobile terminal refers to any of various types of computer system devices that are mobile or portable and perform wireless communication. Examples of mobile terminals include mobile phones or smart phones (eg, iPhone, Android-based phones), portable gaming devices (eg, Nintendo DS, PlayStation Portable, Gameboy Advance, iPhone), laptop computers, PDAs (Personal Digital Assistant, Personal Digital Assistant, Also known as PDA), portable Internet devices, music players, data storage devices, or other handheld devices. In general, a mobile terminal may be broadly defined to encompass any electronic, computing and/or telecommunication device (or combination of devices) that is convenient for transport by a user and capable of wireless communication.

A base station, in its full scope in its ordinary meaning, and including at least a wireless communication station installed at a fixed location and used to communicate as part of a wireless telephone system or radio system.

FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present invention. As shown in FIG. 1 , the scenario includes a mobile terminal 100 and a base station 200. The mobile terminal 100 is illustrated by taking a mobile phone as an example. The mobile terminal 100 is in a roaming state and is searching for After the RPLMN fails, the PLMN is searched according to the order of the currently used PPLMN list. After the search is successful, the mobile terminal 100 communicates with the base station 200 to perform network registration. After the registration is successful, the mobile terminal 100 can access the roaming network to realize roaming.

FIG. 2 is a schematic flowchart of a method for adjusting a PPLMN list provided by an embodiment of the present invention. The method is applied to the above-mentioned mobile terminal and executed by the mobile terminal. As shown in FIG. 2 , the method includes the following steps:

Step 202: Determine the roaming destination planned by the user.

Since the action of the user planning the roaming destination usually occurs before the user reaches the roaming destination, in this embodiment, when the mobile terminal determines to obtain the roaming destination planned by the user, the mobile terminal has not yet reached the roaming destination.

When the mobile terminal determines to obtain the roaming destination planned by the user, it can be in the home place or in the first roaming place. The user's plan is changed from the home place to the roaming destination. If the mobile terminal is in the first roaming place, after determining the roaming destination planned by the user, the location of the mobile terminal will be changed from the first roaming place to the roaming place according to the user's plan. destination, wherein the first roaming place and the roaming destination are different roaming places of the mobile terminal.

Step 204: Adjust the PPLMN list of the mobile terminal according to the roaming destination, and the adjusted PPLMN list includes the identifiers of all PLMNs signed by the mobile terminal and the roaming destination.

After determining the roaming destination planned by the user, before the mobile terminal reaches the roaming destination, the mobile terminal adjusts the PPLMN list according to the roaming destination. Specifically, the currently used PPLMN list can be adjusted. The adjusted PPLMN list includes the mobile terminal and the roaming destination. The identities of all PLMNs that have signed up locally.

In the method for adjusting the PPLMN list in the embodiment of the present invention, the mobile terminal determines the roaming destination planned by the user, and adjusts the PPLMN list of the mobile terminal according to the roaming destination, and the adjusted PPLMN list includes all the PLMNs signed by the mobile terminal and the roaming destination. logo. With the method for adjusting the PPLMN list in the embodiment of the present invention, the mobile terminal can dynamically adjust the PPLMN list of the mobile terminal according to the roaming destination planned by the user, so that the mobile terminal can search the network through the identities of all PLMNs signed with the roaming destination, and Reduce the time-consuming network search of the mobile terminal at the roaming destination, improve the network search efficiency and network access efficiency, and solve the technical problems of long network search time and low network search efficiency when the mobile terminal performs network search through the existing PPLMN list .

In the above step 202, any one of the following methods (1) and (2) can be used to determine the roaming destination planned by the user:

Method (1): Obtain a schedule plan that has not yet reached the start time from the mobile terminal, and if the destination of the schedule plan is a roaming place, determine the destination of the schedule plan as the roaming destination planned by the user;

Mode (2): Determine from the mobile terminal a roaming package that has not yet reached the usage time, and determine the roaming destination corresponding to the roaming package as the roaming destination planned by the user.

In the method (1), the mobile terminal reads the content stored in the local machine, and obtains the schedule plan that has not yet reached the start time. For multiple items, the mobile terminal reads the destination of the schedule, and if the destination is an area other than the home location of the mobile terminal, that is, the roaming place of the mobile terminal, the destination is determined as the roaming destination planned by the user. Since the mobile terminal acquires the schedule plan that has not yet reached the start time, the user should have not yet reached the destination in the schedule plan, so as to ensure that the mobile terminal determines the roaming destination planned by the user before the user reaches the planned roaming destination.

In the method (2), the mobile terminal reads the content stored in the local machine, and determines the roaming package that has not reached the usage time, the roaming package includes roaming traffic package and/or roaming call package, and the mobile terminal determines the roaming place corresponding to the roaming package, The roaming destination corresponding to the roaming package is determined as the roaming destination planned by the user. Since the mobile terminal determines the roaming package that has not yet reached the usage time, the user should have not arrived at the roaming place corresponding to the roaming package, so as to ensure that the mobile terminal determines the roaming destination planned by the user before the user arrives at the planned roaming destination. .

In this embodiment, through the above methods (1) and (2), the roaming destination planned by the user can be determined before the user reaches the planned roaming destination, so that after the user reaches the roaming destination, the mobile terminal can immediately use the The PPLMN list matching the roaming destination is used for network registration.

In this embodiment, through the above methods (1) and (2), the roaming destination planned by the user can be determined without the user's knowledge, so that the user's experience in using the mobile terminal is not affected.

In other embodiments of the present invention, the mobile terminal may provide the user with a roaming information input interface, where the user inputs a planned roaming destination, and the mobile terminal receives the roaming destination input by the user. In this embodiment, the roaming destination is determined by the user's active input, which can ensure the accuracy of determining the roaming destination.

In the above-mentioned step 204, the mobile terminal adjusts the PPLMN list of the mobile terminal according to the roaming destination, specifically: obtaining the PLMN list that the mobile terminal signs with the roaming destination, and the PLMN list includes the signs of all PLMNs that the mobile terminal signs with the roaming destination, Replace this PLMN list with the currently used PPLMN list. The identity of the PLMN may be an ID (identity, identity number) of the PLMN.

Wherein, the mobile terminal can obtain the list of PLMNs subscribed with the roaming destination from the local or the server. The mobile terminal acquires the PLMN list signed with the roaming destination from the server specifically: the mobile terminal sends a PLMN acquisition request to the server, the PLMN acquisition request is used to request to acquire the PLMN list signed by the mobile terminal and the roaming destination, and the mobile terminal receives the server response PLMN Obtain the PLMN list returned by the request, and use the PLMN list returned by the server as the PLMN list signed by the local machine and the roaming destination. The server may be a server of a manufacturer of the mobile terminal, a server of an operator of the mobile terminal, or a third-party server that has signed a cooperation agreement with the mobile terminal and its operator.

The mobile terminal obtains the PLMN list corresponding to the roaming destination locally as follows: the mobile terminal searches for the identities of all PLMNs signed by the mobile terminal and the roaming destination in the locally stored PLMN list, and according to the PLMN signed by the mobile terminal and the roaming destination The identifiers of all PLMNs are used to generate a list of PLMNs that the mobile terminal subscribes to with the roaming destination. In this way, the mobile terminal locally stores a PLMN list, the list can be sent to the mobile terminal by the above-mentioned server in advance, and stored in the memory by the mobile terminal. After determining the above-mentioned roaming destination, the mobile terminal searches the pre-stored PLMN list to obtain the identities of all PLMNs signed by the local machine and the roaming destination, and generates the local machine according to the signs of all the PLMNs signed by the local machine and the roaming destination. List of PLMNs subscribed to the roaming destination.

In this embodiment, when the storage space of the mobile terminal is small, the mobile terminal can communicate with the server to obtain a list of PLMNs signed by the mobile terminal and the roaming destination. The PLMN list of all PLMN identities signed by the mobile terminal with all countries and regions in the world is convenient for the mobile terminal to quickly obtain the PLMN list signed by the mobile terminal with the roaming destination without communicating with the server.

In this embodiment of the present invention, the mobile terminal can obtain the PLMN list signed by the local machine and the roaming destination from the server or locally, so as to provide the mobile terminal with multiple ways to obtain the PLMN list, so that the mobile terminal can use appropriate methods in different scenarios. way to obtain the list of PLMNs signed by the local machine and the roaming destination.

In the embodiment of the present invention, for the case where the PLMN list signed by the local machine and the roaming destination is obtained according to the locally stored PLMN list, the locally stored PLMN list may also be updated regularly. For example, the server periodically sends the latest mobile terminal to the mobile terminal. A list of PLMNs signed with all countries and regions in the world, the list includes all signed identities, so that the mobile terminal can store all the PLMN signs signed with all countries and regions in the world, so that the mobile terminal can obtain the signed contract with the roaming destination. list of PLMNs.

In the embodiment of the present invention, the PLMN list signed by the mobile terminal and the roaming destination is replaced by the currently used PPLMN list, which may be: deleting the PPLMN list stored in the running memory of the mobile terminal, and signing the contract between the mobile terminal and the roaming destination. The PLMN list is written into the running memory of the mobile terminal. Wherein, the running memory may be the running memory of the communication processor of the mobile terminal.

It can be understood that the PPLMN list currently used by the mobile terminal should be stored in the running memory, so that the mobile terminal uses the currently used PPLMN list to search for PLMN. Based on this, in this embodiment, delete the PPLMN list stored in the running memory of the mobile terminal, And write the PLMN list signed by the mobile terminal and the roaming destination into the running memory of the mobile terminal, so that the PLMN list signed by the mobile terminal and the roaming destination is replaced by the currently used PPLMN list, so that the mobile terminal can use the contract with the roaming destination. The PLMN list at the roaming destination is searched.

For example, the information of the PPLMN list currently used in the running memory of the mobile terminal includes the PPLMNs of China, the United States, Japan, France and other countries. Through the method in this embodiment, the mobile terminal determines that the roaming destination planned by the user is Hong Kong, China , then delete the PPLMN list stored in the running memory of the mobile terminal, and write the PLMN list signed with Hong Kong, China into the running memory of the mobile terminal, thereby replacing the PLMN list signed with Hong Kong, China with the currently used PPLMN list , which is convenient for mobile terminals to search the Internet when roaming in Hong Kong, China.

In the embodiment of the present invention, the PLMN list signed with the roaming destination is replaced with the currently used PPLMN list, so that the mobile terminal can adjust the currently used PPLMN list by using fewer read and write actions, and it is convenient for the mobile terminal to quickly adjust the currently used PPLMN list list.

The data volume of the PLMN list subscribed by the mobile terminal and the roaming destination only includes the PLMN identifier subscribed to a region, so it usually does not exceed the data volume limit of the mobile terminal on the PPLMN list, so the method in this embodiment adjusts the adjusted PPLMN list It still satisfies the restriction on the data amount of the PPLMN list by the mobile terminal.

In order to make the PLMN list signed with the roaming destination not lost when powered off, in the present embodiment, while writing the PLMN list signed with the roaming destination into the running memory of the mobile terminal, the PLMN list signed with the roaming destination will also be written. In the file system of the mobile terminal, it may be the file system of the communication processor of the mobile terminal, so that the list of PLMNs subscribed with the roaming destination is not lost when powered off.

In another embodiment, in the above-mentioned step 204, the mobile terminal adjusts the PPLMN list of the mobile terminal according to the roaming destination, and can also be: acquiring the PLMN list signed by the mobile terminal and the roaming destination, and the PLMN list contains the mobile terminal and the roaming destination. Identities of all subscribed PLMNs; according to this PLMN list, determine the PLMN identities that the mobile terminal currently lacks subscribed to with the roaming destination, and write the currently missing PLMN identities signed with the roaming destination in the currently used PPLMN list, thereby making The mobile terminal stores all PLMN identities contracted with the roaming destination.

The method of acquiring the list of PLMNs signed by the mobile terminal and the roaming destination can be the same as the previous description. After the mobile terminal acquires the list of PLMNs signed with the roaming destination, it is equivalent to acquiring all the PLMNs signed with the roaming destination. Identity, the mobile terminal compares the PLMN identity in the acquired PLMN list with the currently stored PLMN identity signed with the roaming destination one by one, thereby determining the currently missing PLMN identity signed with the roaming destination, and the mobile terminal is currently using The currently missing PLMN identities subscribed to the roaming destination are written into the PPLMN list of the roaming destination, so as to store all the PLMN identities subscribed to the roaming destination.

In this way, the PPLMN list of the mobile terminal can be adjusted accurately to ensure that the mobile terminal stores all PLMN identities signed with the roaming destination.

FIG. 3 is a schematic flowchart of a method for adjusting a PPLMN list provided by another embodiment of the present invention. As shown in FIG. 3 , the method is based on FIG. 2 , and after step 204 , further includes step 206 , after reaching the above-mentioned roaming destination Then, search for the PLMN of the roaming destination according to the adjusted PPLMN list.

Specifically, after the mobile terminal detects that it has reached the roaming destination, it can search for the PLMN of the roaming destination according to the adjusted PPLMN list. The network of the roaming destination can be quickly searched and registered, which improves the efficiency of mobile terminal search and registration.

Considering that the user can purchase a roaming package through the virtual SIM card application program in the mobile terminal, so as to use the mobile terminal to talk or surf the Internet in the roaming place, so in this implementation, a PPLMN list adjustment method is also provided, and FIG. 4 is another example of the present invention. A schematic flowchart of the PPLMN list adjustment method provided by the embodiment, as shown in FIG. 4 , the method includes the following steps:

Step 402 , it is detected whether the user purchases a roaming package by using the virtual SIM card application program, if so, step 404 is performed; otherwise, the process ends.

The roaming package may be a roaming data package and/or a roaming call package.

Step 404: Read the roaming places in the roaming package purchased by the user.

Step 406, from the locally stored list of PLMNs signed with all countries and regions in the world, search for the PLMN identifier signed with the roaming place.

In the list of PLMNs contracted with PLMNs in all countries and regions in the world, the identifiers of all PLMNs contracted with PLMNs in all countries and regions in the world are recorded.

Step 408: Generate a list of PLMNs subscribed with the roaming place according to the PLMN identifier subscribed with the roaming place.

Step 410, replace the currently used PPLMN list with the PLMN list contracted with the roaming place.

Step 412, after detecting that the local machine arrives at the above-mentioned roaming place, use the currently used PPLMN list to search for the PLMN.

With the method in FIG. 4 , after detecting that the user has purchased a roaming package, the mobile terminal can adjust the currently used PPLMN list according to the roaming location in the roaming package, so that the mobile terminal can quickly search the network and register after arriving at the roaming location. .

In summary, through the method for adjusting the PPLMN list in this embodiment, when the storage space occupied by the PPLMN list is limited by the mobile terminal, the currently used PPLMN list can be adjusted to the PLMN list corresponding to the roaming destination planned by the user, Thereby, the time-consuming of the mobile terminal's network search at the roaming destination is reduced, and the network search efficiency and network access efficiency are improved.

Corresponding to the above-mentioned PPLMN list adjustment method, an embodiment of the present invention further provides a mobile terminal to implement the above-mentioned PPLMN list adjustment method, the mobile terminal may be the above-mentioned mobile terminal 100, and FIG. 5 is a mobile terminal provided by an embodiment of the present invention. Schematic diagram of the module composition, as shown in Figure 5, the mobile terminal includes:

a roaming location determining module 51, used to determine a roaming destination planned by the user;

The list adjustment module 52 is configured to adjust the PPLMN list of the mobile terminal according to the roaming destination, and the adjusted PPLMN list includes the identifiers of all PLMNs signed by the mobile terminal and the roaming destination.

Optionally, the roaming location determining module 51 is specifically configured to:

Obtain the schedule plan that has not yet reached the start time from the mobile terminal, and if the destination of the schedule plan is a roaming place, determine the destination of the schedule plan as the roaming destination planned by the user;

or,

The roaming package that has not reached the usage time is determined from the mobile terminal, and the roaming destination corresponding to the roaming package is determined as the roaming destination planned by the user.

Optionally, the list adjustment module 52 is specifically configured to:

Acquiring a list of PLMNs signed by the mobile terminal with the roaming destination, where the PLMN list includes the identities of all PLMNs signed by the mobile terminal with the roaming destination;

Replace the PLMN list with the currently used PPLMN list.

Optionally, the list adjustment module 52 is also specifically used for:

Send a PLMN acquisition request to the server, the PLMN acquisition request is used to request to acquire the PLMN list that the mobile terminal signs with the roaming destination;

Receive the PLMN list returned by the server in response to the PLMN acquisition request, and use the PLMN list returned by the server as the PLMN list signed by the mobile terminal with the roaming destination.

Optionally, the list adjustment module 52 is also specifically used for:

In the locally stored PLMN list, look up the identities of all PLMNs signed by the mobile terminal and the roaming destination;

According to the identifiers of all PLMNs that the mobile terminal subscribes to the roaming destination, a list of PLMNs that the mobile terminal subscribes to the roaming destination is generated.

FIG. 6 is a schematic diagram of a module composition of a mobile terminal provided by another embodiment of the present invention. As shown in FIG. 6 , the mobile terminal further includes:

The search module 61 is configured to search for the PLMN of the roaming destination according to the adjusted PPLMN list after reaching the roaming destination.

In the embodiment of the present invention, the PPLMN list of the mobile terminal can be dynamically adjusted according to the roaming destination planned by the user, so that the mobile terminal searches the network through the identifiers of all PLMNs signed with the roaming destination, so as to reduce the number of mobile terminals in the roaming destination. Network search takes time, improves network search efficiency and network access efficiency, and solves the technical problems of long network search time and low network search efficiency when the mobile terminal performs network search through the existing PPLMN list.

FIG. 7 is a schematic diagram of the hardware structure of a mobile terminal for implementing various embodiments of the present invention. As shown in FIG. 7 , the mobile terminal 700 includes but is not limited to: a radio frequency unit 701 , a network module 702 , an audio output unit 703 , and an input unit 704 , sensor 705, display unit 706, user input unit 707, interface unit 708, memory 709, processor 710, and power supply 711 and other components. Those skilled in the art can understand that the mobile terminal 700 in FIG. 7 is the aforementioned mobile terminal 100 . The structure of the mobile terminal shown in FIG. 7 does not constitute a limitation on the mobile terminal, and the mobile terminal may include more or less components than shown, or combine some components, or arrange different components. In this embodiment of the present invention, the mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

Wherein, a computer program is stored in the memory 709, and when the computer program is executed by the processor 710, the following processes can be implemented:

Determine the roaming destination planned by the user;

The PPLMN list of the mobile terminal is adjusted according to the roaming destination, and the adjusted PPLMN list includes the identifiers of all public land mobile network PLMNs that the mobile terminal subscribes to with the roaming destination.

Optionally, when the computer program is executed by the processor 710, the roaming destination planned by the user is determined, including:

Obtain the schedule plan that has not yet reached the start time from the mobile terminal, and if the destination of the schedule plan is a roaming place, determine the destination of the schedule plan as the roaming destination planned by the user;

or,

The roaming package that has not reached the usage time is determined from the mobile terminal, and the roaming destination corresponding to the roaming package is determined as the roaming destination planned by the user.

Optionally, when the computer program is executed by the processor 710, the currently used PPLMN list is adjusted according to the roaming destination, including:

Acquiring a list of PLMNs signed by the mobile terminal with the roaming destination, where the PLMN list includes the identities of all PLMNs signed by the mobile terminal with the roaming destination;

Replace the PLMN list with the currently used PPLMN list.

Optionally, when the computer program is executed by the processor 710, it acquires a list of PLMNs signed by the mobile terminal and the roaming destination, including:

Send a PLMN acquisition request to the server, the PLMN acquisition request is used to request to acquire the PLMN list that the mobile terminal signs with the roaming destination;

Receive the PLMN list returned by the server in response to the PLMN acquisition request, and use the PLMN list returned by the server as the PLMN list signed by the mobile terminal with the roaming destination.

Optionally, when the computer program is executed by the processor 710, it acquires a list of PLMNs signed by the mobile terminal and the roaming destination, including:

In the locally stored PLMN list, look up the identities of all PLMNs signed by the mobile terminal and the roaming destination;

According to the identifiers of all PLMNs that the mobile terminal subscribes to the roaming destination, a list of PLMNs that the mobile terminal subscribes to the roaming destination is generated.

Optionally, when the computer program is executed by the processor 710, after adjusting the PPLMN list of the mobile terminal according to the roaming destination, the computer program further includes:

After arriving at the roaming destination, search for the PLMN of the roaming destination according to the adjusted PPLMN list.

In the embodiment of the present invention, the PPLMN list of the mobile terminal can be dynamically adjusted according to the roaming destination planned by the user, so that the mobile terminal searches the network through the identifiers of all PLMNs signed with the roaming destination, so as to reduce the number of mobile terminals in the roaming destination. Network search takes time, improves network search efficiency and network access efficiency, and solves the technical problems of long network search time and low network search efficiency when the mobile terminal performs network search through the existing PPLMN list.

It should be understood that, in this embodiment of the present invention, the radio frequency unit 701 can be used for receiving and sending signals during sending and receiving of information or during a call. Specifically, after receiving the downlink data from the base station, it is processed by the processor 710; The uplink data is sent to the base station. Generally, the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 701 can also communicate with the network and other devices through a wireless communication system.

The mobile terminal provides the user with wireless broadband Internet access through the network module 702, such as helping the user to send and receive emails, browse web pages, access streaming media, and the like.

The audio output unit 703 may convert audio data received by the radio frequency unit 701 or the network module 702 or stored in the memory 709 into audio signals and output as sound. Also, the audio output unit 703 may also provide audio output related to a specific function performed by the mobile terminal 700 (eg, call signal reception sound, message reception sound, etc.). The audio output unit 703 includes a speaker, a buzzer, a receiver, and the like.

The input unit 704 is used to receive audio or video signals. The input unit 704 may include a graphics processor (Graphics Processing Unit, GPU) 7041 and a microphone 7042. The graphics processor 7041 captures images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode data is processed. The processed image frames may be displayed on the display unit 706 . The image frames processed by the graphics processor 7041 may be stored in the memory 709 (or other storage medium) or transmitted via the radio frequency unit 701 or the network module 702 . The microphone 7042 can receive sound and can process such sound into audio data. The processed audio data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 701 for output in the case of a telephone call mode.

The mobile terminal 700 also includes at least one sensor 705, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 7061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 7061 and the proximity sensor when the mobile terminal 700 is moved to the ear. / or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three-axis), and can detect the magnitude and direction of gravity when stationary, and can be used to identify the posture of mobile terminals (such as horizontal and vertical screen switching, related games , magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; the sensor 705 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, Infrared sensors, etc., are not repeated here.

The display unit 706 is used to display information input by the user or information provided to the user. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 707 may be used to receive input numerical or character information, and generate key signal input related to user settings and function control of the mobile terminal. Specifically, the user input unit 707 includes a touch panel 7071 and other input devices 7072 . The touch panel 7071, also referred to as a touch screen, can collect touch operations by the user on or near it (such as the user's finger, stylus, etc., any suitable object or accessory on or near the touch panel 7071). operate). The touch panel 7071 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it to the touch controller. To the processor 710, the command sent by the processor 710 is received and executed. In addition, the touch panel 7071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 7071 , the user input unit 707 may also include other input devices 7072 . Specifically, other input devices 7072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and operation sticks, which will not be described herein again.

Further, the touch panel 7071 can be covered on the display panel 7061. When the touch panel 7071 detects a touch operation on or near it, it transmits it to the processor 710 to determine the type of the touch event, and then the processor 710 determines the type of the touch event according to the touch The type of event provides a corresponding visual output on display panel 7061. Although in FIG. 7, the touch panel 7071 and the display panel 7061 are used as two independent components to realize the input and output functions of the mobile terminal, in some embodiments, the touch panel 7071 and the display panel 7061 may be integrated The input and output functions of the mobile terminal are implemented, which is not specifically limited here.

The interface unit 708 is an interface for connecting an external device to the mobile terminal 700 . For example, external devices may include wired or wireless headset ports, external power (or battery charger) ports, wired or wireless data ports, memory card ports, ports for connecting devices with identification modules, audio input/output (I/O) ports, video I/O ports, headphone ports, etc. The interface unit 708 may be used to receive input (eg, data information, power, etc.) from an external device and transmit the received input to one or more elements within the mobile terminal 700 or may be used between the mobile terminal 700 and the external Transfer data between devices.

The memory 709 may be used to store software programs as well as various data. The memory 709 may mainly include a stored program area and a stored data area, wherein the stored program area may store an operating system, an application program required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; Data created by the use of the mobile phone (such as audio data, phone book, etc.), etc. Additionally, memory 709 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 710 is the control center of the mobile terminal, uses various interfaces and lines to connect various parts of the entire mobile terminal, runs or executes the software programs and/or modules stored in the memory 709, and calls the data stored in the memory 709. , perform various functions of the mobile terminal and process data, so as to monitor the mobile terminal as a whole. The processor 710 may include one or more processing units; preferably, the processor 710 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc., and the modem The processor mainly handles wireless communication. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 710.

The mobile terminal 700 may also include a power supply 711 (such as a battery) for supplying power to various components. Preferably, the power supply 711 may be logically connected to the processor 710 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system and other functions.

In addition, the mobile terminal 700 includes some unshown functional modules, which are not repeated here.

Preferably, an embodiment of the present invention further provides a mobile terminal, including a processor 710, a memory 709, and a computer program stored in the memory 709 and running on the processor 710, when the computer program is executed by the processor 710 Each process of the above-mentioned PPLMN list adjustment method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, details are not described here.

Further, an embodiment of the present invention also provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, each process of the above-mentioned PPLMN list adjustment method embodiment is implemented, and can To achieve the same technical effect, in order to avoid repetition, details are not repeated here. The computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk or an optical disk, and the like.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present invention essentially or the parts that contribute to the prior art can be embodied in the form of software products, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present invention.

The embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of the present invention, without departing from the spirit of the present invention and the scope protected by the claims, many forms can be made, which all belong to the protection of the present invention.

Claims (12)

1. A preferred public land mobile network PPLMN list adjustment method, applied to a mobile terminal, is characterized in that, comprising: Determine the roaming destination planned by the user; Adjust the PPLMN list of the mobile terminal according to the roaming destination, and the adjusted PPLMN list includes the identities of all public land mobile network PLMNs signed by the mobile terminal and the roaming destination; Wherein, the determining the roaming destination planned by the user includes: receiving the planned roaming destination input by the user in the roaming information input interface provided by the mobile terminal; The adjusting the PPLMN list of the mobile terminal according to the roaming destination includes: acquiring a PLMN list subscribed by the mobile terminal and the roaming destination, and the PLMN list includes the PLMN list signed by the mobile terminal and the roaming destination. Identities of all PLMNs; replace the PLMN list with the currently used PPLMN list. 2. The method according to claim 1, wherein determining the roaming destination planned by the user comprises: Obtain the schedule plan that has not yet reached the start time from the mobile terminal, and if the destination of the schedule plan is a roaming place, determine the destination of the schedule plan as the roaming destination planned by the user; or, The roaming package that has not reached the usage time is determined from the mobile terminal, and the roaming destination corresponding to the roaming package is determined as the roaming destination planned by the user. 3. The method according to claim 1, wherein acquiring the PLMN list signed by the mobile terminal with the roaming destination, comprising: Send a PLMN acquisition request to the server, the PLMN acquisition request is used to request to acquire the PLMN list that the mobile terminal signs with the roaming destination; Receive the PLMN list returned by the server in response to the PLMN acquisition request, and use the PLMN list returned by the server as the PLMN list signed by the mobile terminal with the roaming destination. 4. The method according to claim 1, wherein acquiring the PLMN list that the mobile terminal signs with the roaming destination, comprising: In the locally stored PLMN list, look up the identities of all PLMNs signed by the mobile terminal and the roaming destination; According to the identifiers of all PLMNs that the mobile terminal subscribes to the roaming destination, a list of PLMNs that the mobile terminal subscribes to the roaming destination is generated. 5. The method according to any one of claims 1 to 4, wherein after adjusting the PPLMN list of the mobile terminal according to the roaming destination, the method further comprises: After arriving at the roaming destination, search for the PLMN of the roaming destination according to the adjusted PPLMN list. 6. A mobile terminal, comprising: a roaming location determination module, used to determine the roaming destination planned by the user; The list adjustment module is used to adjust the preferred public land mobile network PPLMN list of the mobile terminal according to the roaming destination, and the adjusted PPLMN list contains the identifiers of all the public land mobile network PLMNs signed by the mobile terminal and the roaming destination ; Wherein, the roaming location determination module is specifically configured to: receive the planned roaming destination input by the user in the roaming information input interface provided by the mobile terminal; The list adjustment module is specifically configured to: obtain a list of PLMNs signed by the mobile terminal and the roaming destination, where the PLMN list includes the identifiers of all PLMNs signed by the mobile terminal and the roaming destination; The PLMN list is replaced with the currently used PPLMN list. 7. The mobile terminal according to claim 6, wherein the roaming location determination module is specifically used for: Obtain the schedule plan that has not yet reached the start time from the mobile terminal, and if the destination of the schedule plan is a roaming place, determine the destination of the schedule plan as the roaming destination planned by the user; or, The roaming package that has not reached the usage time is determined from the mobile terminal, and the roaming destination corresponding to the roaming package is determined as the roaming destination planned by the user. 8. The mobile terminal according to claim 6, wherein the list adjustment module is further specifically used for: Send a PLMN acquisition request to the server, the PLMN acquisition request is used to request to acquire the PLMN list that the mobile terminal signs with the roaming destination; Receive the PLMN list returned by the server in response to the PLMN acquisition request, and use the PLMN list returned by the server as the PLMN list signed by the mobile terminal with the roaming destination. 9. The mobile terminal according to claim 6, wherein the list adjustment module is further specifically used for: In the locally stored PLMN list, look up the identities of all PLMNs signed by the mobile terminal and the roaming destination; According to the identifiers of all PLMNs that the mobile terminal subscribes to the roaming destination, a list of PLMNs that the mobile terminal subscribes to the roaming destination is generated. 10. The mobile terminal according to any one of claims 6 to 9, further comprising: A search module, configured to search for the PLMN of the roaming destination according to the adjusted PPLMN list after reaching the roaming destination. 11. A mobile terminal, characterized in that it comprises: a memory, a processor and a computer program stored on the memory and running on the processor, the computer program being executed by the processor to achieve: The steps of the preferred public land mobile network PPLMN list adjustment method according to any one of claims 1 to 5. 12. A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program according to any one of claims 1 to 5 is implemented. The steps of the method for adjusting the PPLMN list of the public land mobile network are preferred.

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