CN114416204B - Method and equipment for terminal equipment to read PLMN configuration file - Google Patents
Method and equipment for terminal equipment to read PLMN configuration file Download PDFInfo
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- CN114416204B CN114416204B CN202210059590.XA CN202210059590A CN114416204B CN 114416204 B CN114416204 B CN 114416204B CN 202210059590 A CN202210059590 A CN 202210059590A CN 114416204 B CN114416204 B CN 114416204B
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
- G06F9/44505—Configuring for program initiating, e.g. using registry, configuration files
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
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Abstract
The application aims to provide a method and equipment for terminal equipment to read PLMN configuration files. According to the method, a modem retrieves whether a first configuration file module has a corresponding PLMN configuration file according to the obtained current PLMN, and sends the current PLMN and a configuration request to an AP, wherein the first configuration file module is positioned in the modem and stores the PLMN configuration file transmitted by the AP; the AP searches whether a second configuration file module has a corresponding PLMN configuration file according to the current PLMN and the configuration request, wherein the second configuration file module is positioned in the AP and stores all PLMN configuration files applicable to the terminal equipment; the modem sends an operation request to the AP according to the search result of the first configuration file module; and the AP sends result information or the searched PLMN configuration file to the modem according to the operation request and the search result of the second configuration file module.
Description
Technical Field
The present application relates to the field of computer technologies, and in particular, to a technology for a terminal device to read PLMN configuration files.
Background
With the development of the mobile phone market, in order to meet the needs of each operator, corresponding mobile phone parameters are configured for a specific operator, that is, a large number of configuration files are stored in the mobile phone. At present, most mobile phones applying QCOM chips store configuration files of various operators in RAM of a Modem, and after a card is inserted, the mobile phones autonomously load the configuration files stored in the Modem. However, as the requirements of operators increase, so does the configuration files stored in the Modem, this phenomenon may cause the Modem Crash.
Another way is to store all the configuration files in the AP, and when the configuration files need to be read, the modem sends a request to the AP and waits for the request to be returned to the required configuration files; when the configuration file needs to be replaced, the modem also sends a request to the AP, the AP judges whether the configuration file to be replaced is the same as the configuration file applied before, and then searches the configuration file to be replaced. Although the pressure of the Modem is relieved in the mode, all tasks are submitted to the AP, so that the pressure of the AP is increased suddenly, the process of reading the configuration file is only performed in series in one process, and the required time cost is high.
Therefore, a technology is urgently needed, so that the pressure of the modem can be relieved, the generation of modem crash is avoided, the modem and the AP can be balanced, the reading process of the configuration file is performed in parallel in the modem and the AP, and the time cost and the resource waste are reduced.
Disclosure of Invention
The application aims to provide a method and equipment for terminal equipment to read PLMN configuration files.
According to an aspect of the present application, there is provided a method for a terminal device to read a PLMN configuration file, wherein the terminal device includes a modem and an AP, the method including:
the modem retrieves whether a first configuration file module has a corresponding PLMN configuration file according to the obtained current PLMN, and sends the current PLMN and a configuration request to the AP, wherein the first configuration file module is positioned in the modem and stores the PLMN configuration file transmitted by the AP;
the AP searches whether a second configuration file module has a corresponding PLMN configuration file according to the current PLMN and the configuration request, wherein the second configuration file module is positioned in the AP and stores all PLMN configuration files applicable to the terminal equipment;
the modem sends an operation request to the AP according to the search result of the first configuration file module;
and the AP sends result information or the searched PLMN configuration file to the modem according to the operation request and the search result of the second configuration file module.
Further, the operation request includes a file transmission request and an operation termination request, and the modem sends the operation request to the AP according to the search result of the first profile module, where the sending includes:
if the modem does not detect the PLMN configuration file corresponding to the current PLMN in the first configuration file module, a file transmission request is sent to the AP so that the AP transmits the retrieved PLMN configuration file; or alternatively, the process may be performed,
if the modem detects a PLMN configuration file corresponding to the current PLMN in the first configuration file module, an operation termination request is sent to the AP so that the AP terminates searching or transmitting the PLMN configuration file.
Further, after detecting the PLMN configuration file corresponding to the current PLMN in the first configuration file module, the modem further includes:
and if the configuration file corresponding to the PLMN is not activated, activating the configuration file.
Further, the result information includes search failure information and terminated information, and the sending, by the AP, the result information or the searched PLMN configuration file to the modem according to the operation request and the search result of the second configuration file module includes:
if the AP does not retrieve the PLMN configuration file corresponding to the current PLMN in the second configuration file module, the AP sends retrieval failure information to the modem according to the file transmission request sent by the modem; or alternatively, the process may be performed,
if the AP searches the PLMN configuration file corresponding to the current PLMN in the second configuration file module, the PLMN configuration file is sent to the modem according to the file transmission request sent by the modem; or alternatively, the process may be performed,
and the terminated information is sent to the modem according to the termination operation request sent by the modem.
Further, after the PLMN configuration file is sent to the modem according to the file transfer request sent by the modem, the method further includes: the modem receives and activates the PLMN configuration file.
Preferably, after the AP sends the result information or the retrieved PLMN configuration file to the modem according to the operation request and the retrieval result of the second configuration file module, the method further includes:
recording the number of configuration files in the first configuration file module;
and deleting the configuration file with the minimum activation times when the number of the configuration files exceeds a preset capacity threshold.
Preferably, the information interaction between the modem terminal and the AP terminal is implemented through qmi_rmtfs service.
According to another aspect of the present application there is also provided a computer readable medium having stored thereon computer readable instructions executable by a processor to perform operations as the aforementioned method.
According to still another aspect of the present application, there is also provided an apparatus for a terminal device to read a PLMN configuration file, wherein the apparatus includes:
one or more processors; and
a memory storing computer readable instructions that, when executed, cause the processor to perform the operations of the method as described above.
Compared with the prior art, the method and the device have the advantages that whether the corresponding PLMN configuration file exists in the first configuration file module or not is searched through the modem according to the obtained current PLMN, and the current PLMN and the configuration request are sent to the AP, wherein the first configuration file module is located in the modem, and the PLMN configuration file transmitted by the AP is stored; the AP searches whether a second configuration file module has a corresponding PLMN configuration file according to the current PLMN and the configuration request, wherein the second configuration file module is positioned in the AP and stores all PLMN configuration files applicable to the terminal equipment; the modem sends an operation request to the AP according to the search result of the first configuration file module; and the AP sends result information or the searched PLMN configuration file to the modem according to the operation request and the search result of the second configuration file module. The method can avoid the generation of modem crash, and can enable the reading of the configuration file to be performed in parallel in the modem and the AP, thereby reducing the time cost and the resource waste.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
fig. 1 shows a flow chart of a method for a terminal device to read PLMN configuration files according to an aspect of the application;
fig. 2 shows a flow chart of a method for a terminal device to read PLMN configuration files according to a preferred embodiment of the application.
The same or similar reference numbers in the drawings refer to the same or similar parts.
Detailed Description
The application is described in further detail below with reference to the accompanying drawings.
In one exemplary configuration of the application, the terminal, the device of the service network, and the trusted party each include one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of computer-readable media.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer readable media, as defined herein, does not include non-transitory computer readable media (transmission media), such as modulated data signals and carrier waves.
The terminal equipment in the application comprises, but is not limited to, mobile phones, tablet computers, smart watches and other electronic equipment capable of being inserted with a SIM card. The terminal equipment comprises a modem and an Application Processor (AP), and after the terminal equipment is inserted into the SIM card, the modem acquires PLMN (Public Land Mobile Network ) corresponding to the SIM card. Structurally, the PLMN identity is divided into two parts, one part called MCC (country code) and the other part called MNC (mobile network code). Each mobile operator's network belongs to one PLMN, so, taking the chinese communications operator as an example, chinese mobile, chinese communication and chinese telecommunication have different PLMNs respectively.
The obtaining mode of the modem for the PLMN comprises the following steps: reading PLMNs from ef_opl and ef_pnn partitions of the SIM; if the terminal equipment registers an HPLMN network, the Modem firstly reads a long format file of the CPHS ONS in the SIM, if the long format file exists, the long format file is used as a PLMN, otherwise, the short format file is read, and if the long format file exists, the short format file is used as the PLMN; if the currently registered network issues NITZ Operator Name for the terminal device, the value is used as a PLMN; if the ROM does not find the current PLMN, the MCC and MNC numbers corresponding to the currently registered PLMN are used as the current PLMN.
According to the method and the device, different operators are determined by acquiring PLMNs corresponding to the SIM card, so that corresponding terminal equipment parameter information is configured for the operators, and because of the one-to-one correspondence between the PLMNs and the operators, the terminal equipment parameter information set for the different operators is called a PLMN configuration file in the method and the device.
In order to further describe the technical means and effects adopted by the present application, the technical scheme of the present application will be clearly and completely described below with reference to the accompanying drawings and preferred embodiments.
Fig. 1 illustrates a method for a terminal device to read a PLMN configuration file, where the method includes:
s11, retrieving whether a corresponding PLMN configuration file exists in a first configuration file module according to the obtained current PLMN, and sending the current PLMN and a configuration request to an AP, wherein the first configuration file module is positioned in the modem and stores the PLMN configuration file transmitted by the AP;
s12 AP searches whether a second configuration file module has a corresponding PLMN configuration file according to the current PLMN and the configuration request, wherein the second configuration file module is positioned in the AP and stores all PLMN configuration files applicable to the terminal equipment;
s13, the modem sends an operation request to the AP according to the search result of the first configuration file module;
and S14 AP sends result information or the searched PLMN configuration file to the modem according to the operation request and the search result of the second configuration file module.
In this embodiment, in the step S11, the modem retrieves, according to the obtained current PLMN, whether a first profile module has a corresponding PLMN profile, and sends the current PLMN and the configuration request to the AP, where the first profile module is located in the modem, and stores the PLMN profile transmitted by the AP.
In this step, the modem establishes a first profile module for saving a small number of profiles returned by the AP. After the modem acquires the corresponding PLMN through the SIM card, the first configuration module searches whether the configuration file corresponding to the current PLMN exists or not and simultaneously sends the PLMN and the configuration request to the AP. In this way, only the PLMN configuration file which has been applied is stored in the modem, and this configuration file is the configuration file of the high-frequency application of the terminal device. In an actual application scenario, the variability of the SIM card type of the terminal device is low, for example, if the SIM card operator of a user is mobile in china and the other SIM card operator is telecom in china, after the two SIM cards are applied to the terminal device of the user, the first profile module of the modem stores PLMN profiles of the telecom in china and mobile in china returned by the AP, and the two PLMN profiles in the first profile module can satisfy most application scenarios of the terminal device of the user, which means that the process of reading the PLMN profiles by the terminal device of the user can be implemented only by retrieving the modem in the first profile module in most application scenarios. Therefore, the modem stores the configuration file of the high-frequency application in a targeted manner, so that the retrieval efficiency of the configuration file is greatly improved.
In this embodiment, in the step S12, the AP retrieves, according to the current PLMN and the configuration request, whether a second profile module has a corresponding PLMN profile, where the second profile module is located in the AP, and stores all PLMN profiles applicable to the terminal device.
In this step, a second configuration file module is established in the AP, and is configured to store configuration files corresponding to PLMNs of all communication operators supported by the terminal device. After receiving the current PLMN and the configuration request sent by the modem, the AP searches whether a corresponding PLMN configuration file exists in the second configuration file module according to the current PLMN. In an actual application scenario, if the terminal device of the user inserts the SIM card, the modem first obtains the PLMN of the SIM card, and sends the PLMN and the configuration request to the AP while the first configuration file module searches the PLMN configuration file, so that the AP and the modem synchronously search the PLMN configuration file corresponding to the SIM card. By the method, the searching process of the AP in the first profile module and the searching process of the modem in the second profile module are performed synchronously and in parallel, so that the time cost is reduced.
In this step, the configuration file stored in the AP is only the configuration file of the communication carrier supported by the terminal device, so when the terminal device inserts a SIM card of an unsupported carrier, the second configuration file module of the AP does not have the configuration file of the carrier, and further, the search of the PLMN configuration file by the AP may fail. If the AP successfully retrieves the PLMN configuration file, namely the terminal equipment supports the application of the SIM card of the operator, waiting for the modem to send out a next operation instruction.
In this embodiment, in the step S13, the modem sends an operation request to the AP according to the search result of the first profile module.
Further, the operation request includes a file transmission request and an operation termination request, and the modem sends the operation request to the AP according to the search result of the first profile module, where the operation request includes: if the modem does not detect the PLMN configuration file corresponding to the current PLMN in the first configuration file module, a file transmission request is sent to the AP so that the AP transmits the retrieved PLMN configuration file; or if the modem detects the PLMN configuration file corresponding to the current PLMN in the first configuration file module, sending an operation termination request to the AP so that the AP terminates searching or transmitting the PLMN configuration file.
Further, after detecting the PLMN configuration file corresponding to the current PLMN in the first configuration file module, the modem further includes: and if the configuration file corresponding to the PLMN is not activated, activating the configuration file.
Continuing in this step, when the modem retrieves the PLMN configuration file corresponding to the current PLMN in the first configuration file module, which represents that the SIM card of the current operator has been applied before, the PLMN configuration file in the first configuration file module is directly applied, without continuing the operation of retrieving and transmitting the PLMN configuration file by the AP, so that an operation termination request is sent to the AP, so that the operation termination request terminates the retrieval and transmission of the configuration file. Here, it should be clear that, because the PLMN configuration files of all operators supported by the terminal device are stored in the AP, in most cases, the search speed of the AP in the second configuration file module is slower than the search speed in the modem, and further, when the modem search is successful, an operation termination request is sent to the AP, and in most situations, the AP terminates the search operation that has not been performed yet, thereby effectively reducing unnecessary operation processes of the AP and realizing saving of system resources.
In this scenario, when the modem retrieves the PLMN configuration file corresponding to the current PLMN in the first configuration file module, if the retrieved PLMN configuration file is different from the configuration file applied last time, for example, if the terminal device inserts the SIM card of the china telecommunication last time and the SIM card moved in china is replaced this time, the configuration files applied twice are different, in this scenario, the retrieved configuration file will be in an inactive state, and for this reason, the retrieved configuration file needs to be activated, so that the terminal device can normally apply the retrieved configuration file.
Continuing in this step, when the modem does not retrieve the PLMN configuration file corresponding to the current PLMN in the first configuration file module, that is, the SIM card of the current operator has not been applied before, the AP needs to return the result of the retrieval, so a file transmission request is sent to the AP, so that the AP transmits the retrieved PLMN configuration file.
Continuing in this scenario, the result information includes search failure information and terminated information, and the AP sends, to the modem, the result information or the retrieved PLMN configuration file according to the operation request and the search result of the second configuration file module includes: if the AP does not retrieve the PLMN configuration file corresponding to the current PLMN in the second configuration file module, the AP sends retrieval failure information to the modem according to the file transmission request sent by the modem; or if the AP retrieves the PLMN configuration file corresponding to the current PLMN in the second configuration file module, the PLMN configuration file is sent to the modem according to the file transmission request sent by the modem; or, sending the terminated information to the modem according to the termination operation request sent by the modem.
When the AP receives a file transmission request sent by the modem, but the AP does not retrieve a PLMN configuration file corresponding to the current PLMN, namely the currently inserted SIM card does not belong to an operator supported by the terminal equipment, the AP sends retrieval failure information to the modem under the condition, namely the currently inserted SIM card cannot be applied; when the AP receives a file transmission request sent by the modem and the AP retrieves a PLMN configuration file corresponding to the current PLMN, namely the currently inserted SIM card belongs to an operator supported by the terminal equipment but not applied before, the AP sends the retrieved PLMN configuration file to the modem and carries out configuration application on the inserted SIM card; when the AP receives a termination operation request sent by the modem, namely the currently inserted SIM card belongs to an operator applied before, the modem automatically configures the searched PLMN configuration file, and the AP terminates the search and the return of the configuration file corresponding to the current PLMN according to the received termination operation request.
Further, after the PLMN configuration file is sent to the modem according to the file transfer request sent by the modem, the method further includes: the modem receives and activates the PLMN configuration file.
Here, after the AP returns the PLMN configuration file retrieved in the second configuration file module according to the file transmission request, since the configuration file is not applied, it is necessarily different from the configuration file applied last time, and is further in an inactive state, so after the modem receives the PLMN configuration file transmitted by the AP, it needs to activate and configure the PLMN configuration file.
In this embodiment, the information interaction between the modem and the AP is implemented by qmi_rmtfs service.
Here, the high-pass provides qmi_ RMTFS (Qualcomm Messaging Interface for Remote File System) service for data reading, which is capable of reading data from and writing data to an embedded multimedia card (eMMC). The qmi_rmtfs service includes two components: qmi_rmtfs client component in Modem and qmi_rmtfs server component in AP. The qmi_rmtfs server component in the AP mainly serves Modem, hexagon and other processor client requests, which opens a specific partition on eMMC according to the client request, reads and writes data through QMI interface. The application realizes the reading operation of PLMN configuration files between the modem and the AP by using QMI_RMTFS service, and does not need a data reading method for realizing the same function in a self-defining way.
In a preferred embodiment, refer to fig. 2, wherein steps S21, S22, S23 and S24 in fig. 2 are the same or substantially the same as steps S11, S12, S13 and S14 in the embodiment of fig. 1, and thus are not described herein again, but are incorporated herein by reference. Wherein, the step S25 includes: the AP records the number of configuration files in the first configuration file module; and deleting the configuration file with the minimum activation times when the number of the configuration files exceeds a preset capacity threshold.
Here, the modem may set a custom profile capacity threshold, which may use the number of operators as a count criterion, or may use the size of the profile as a count criterion, which is not limited herein. The capacity threshold is ideally the maximum that does not cause modem crash. After the AP sends the result information or the retrieved PLMN configuration file to the modem according to the operation request and the retrieval result of the second configuration file module, the modem may record the number of configuration files in the first configuration file module, compare the number of configuration files with the capacity threshold, and delete the configuration file with the minimum activation number when the number of configuration files exceeds the preset capacity threshold. By the method, the total amount of the files stored in the modem is controlled, so that the configuration files stored in the modem can not cause modem crash, and the normal operation of the system is ensured.
Compared with the prior art, the method and the device have the advantages that whether the corresponding PLMN configuration file exists in the first configuration file module or not is searched through the modem according to the obtained current PLMN, and the current PLMN and the configuration request are sent to the AP, wherein the first configuration file module is located in the modem, and the PLMN configuration file transmitted by the AP is stored; the AP searches whether a second configuration file module has a corresponding PLMN configuration file according to the current PLMN and the configuration request, wherein the second configuration file module is positioned in the AP and stores all PLMN configuration files applicable to the terminal equipment; the modem sends an operation request to the AP according to the search result of the first configuration file module; and the AP sends result information or the searched PLMN configuration file to the modem according to the operation request and the search result of the second configuration file module. The method can avoid the generation of modem crash, and can enable the reading of the configuration file to be performed in parallel in the modem and the AP, thereby reducing the time cost and the resource waste.
Furthermore, embodiments of the present application provide a computer readable medium having stored thereon computer readable instructions executable by a processor to implement the foregoing method.
The embodiment of the application also provides a device for the terminal device to read the PLMN configuration file, wherein the device comprises:
one or more processors; and
a memory storing computer readable instructions that, when executed, cause the processor to perform the operations of the aforementioned method.
For example, computer-readable instructions, when executed, cause the one or more processors to: the modem retrieves whether a first configuration file module has a corresponding PLMN configuration file according to the obtained current PLMN, and sends the current PLMN and a configuration request to the AP, wherein the first configuration file module is positioned in the modem and stores the PLMN configuration file transmitted by the AP; the AP searches whether a second configuration file module has a corresponding PLMN configuration file according to the current PLMN and the configuration request, wherein the second configuration file module is positioned in the AP and stores all PLMN configuration files applicable to the terminal equipment; the modem sends an operation request to the AP according to the search result of the first configuration file module; and the AP sends result information or the searched PLMN configuration file to the modem according to the operation request and the search result of the second configuration file module.
It will be evident to those skilled in the art that the application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is evident that the word "comprising" does not exclude other elements or steps, and that the singular does not exclude a plurality. A plurality of units or means recited in the apparatus claims can also be implemented by means of one unit or means in software or hardware. The terms first, second, etc. are used to denote a name, but not any particular order.
Claims (6)
1. A method for a terminal device to read PLMN configuration files, wherein,
the terminal equipment comprises a modem and an AP, the information interaction between the modem and the AP is realized through QMI_RMTFS service, and the method comprises the following steps:
the modem retrieves whether a first configuration file module has a corresponding PLMN configuration file according to the obtained current PLMN, and sends the current PLMN and a configuration request to the AP, wherein the first configuration file module is positioned in the modem and stores the PLMN configuration file transmitted by the AP;
the AP searches whether a second configuration file module has a corresponding PLMN configuration file according to the current PLMN and the configuration request, wherein the second configuration file module is positioned in the AP and stores all PLMN configuration files applicable to the terminal equipment;
the modem sends an operation request to the AP according to the search result of the first configuration file module;
the AP sends result information or a searched PLMN configuration file to the modem according to the operation request and the search result of the second configuration file module;
the operation request includes a file transmission request and an operation termination request, and the modem sends the operation request to the AP according to the search result of the first profile module, where the sending includes:
if the modem does not detect the PLMN configuration file corresponding to the current PLMN in the first configuration file module, a file transmission request is sent to the AP so that the AP transmits the retrieved PLMN configuration file; or alternatively, the process may be performed,
if the modem detects a PLMN configuration file corresponding to the current PLMN in the first configuration file module, an operation termination request is sent to the AP so that the AP terminates searching or transmitting the PLMN configuration file;
the sending, by the AP, the result information to the modem or the retrieved PLMN configuration file according to the operation request and the retrieval result of the second configuration file module includes:
if the AP does not retrieve the PLMN configuration file corresponding to the current PLMN in the second configuration file module, the AP sends retrieval failure information to the modem according to the file transmission request sent by the modem; or alternatively, the process may be performed,
if the AP searches the PLMN configuration file corresponding to the current PLMN in the second configuration file module, the PLMN configuration file is sent to the modem according to the file transmission request sent by the modem; or alternatively, the process may be performed,
terminating the terminated information sent to the modem according to the operation sent by the modem.
2. The method of claim 1, wherein the modem further comprises, after detecting a PLMN profile corresponding to a current PLMN in the first profile module:
and if the configuration file corresponding to the PLMN is not activated, activating the configuration file.
3. The method of claim 1, wherein,
after the PLMN configuration file is sent to the modem according to the file transfer request sent by the modem, the method further includes:
the modem receives and activates the PLMN configuration file.
4. A method according to any one of claim 1 to 3, wherein,
after the AP sends the result information or the retrieved PLMN configuration file to the modem according to the operation request and the retrieval result of the second configuration file module, the AP further includes:
recording the number of configuration files in the first configuration file module;
and deleting the configuration file with the minimum activation times when the number of the configuration files exceeds a preset capacity threshold.
5. A computer readable medium having stored thereon computer readable instructions executable by a processor to implement the method of any of claims 1 to 4.
6. An apparatus for a terminal device to read a PLMN configuration file, wherein,
the apparatus includes:
one or more processors; and
a memory storing computer readable instructions that, when executed, cause the processor to perform the operations of the method of any one of claims 1 to 4.
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