CN116709393A

CN116709393A - Restoration method and electronic equipment for cellular data service activation failure

Info

Publication number: CN116709393A
Application number: CN202211571126.5A
Authority: CN
Inventors: 许子昂
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-09-05

Abstract

The embodiment of the application provides a recovery method and electronic equipment when cellular data service fails to be activated. In the method, when the cellular data service of the electronic equipment is continuously activated for a plurality of times, if the reason value of the plurality of times of activation failure meets the consistency condition, the electronic equipment retries the activation flow of the cellular data service according to the hierarchical automatic recovery operation so as to successfully activate the cellular data service. In this way, for the situation that the root cause of the continuous multiple activation failure of the cellular data service is not changed, the hierarchical automatic recovery operation is adopted to enable the cellular data service to be successfully activated, so that the situation that the cellular data cannot be activated for a long time and poor experience is brought to users is avoided. Moreover, the automatic recovery operation of each level is enhanced step by step, and bad perception of a user is not increased due to the fact that the automatic recovery operation is too aggressive.

Description

Restoration method and electronic equipment for cellular data service activation failure

Technical Field

The present application relates to the field of intelligent terminals, and in particular, to a method for recovering a cellular data service when activation fails, and an electronic device.

Background

After the terminal equipment successfully activates the cellular data service, the user can use the terminal equipment to perform internet surfing operation. However, during the process of activating the cellular data service by the terminal device, a problem of network connection failure may occur, and the network connection may not be recovered for a long time, thereby causing the activation failure of the cellular data service of the terminal device.

Thus, how to automatically recover to successfully activate the cellular data service when the cellular data service fails to be activated is a problem to be solved.

Disclosure of Invention

In order to solve the technical problems, the embodiment of the application provides a recovery method and electronic equipment when cellular data service activation fails. In the method, aiming at the situation that the root cause of the continuous multiple activation failure of the cellular data service is not changed, the hierarchical automatic recovery operation is adopted to enable the cellular data service to be successfully activated, so that the situation that the cellular data cannot be activated for a long time and poor experience is brought to a user is avoided. Moreover, the automatic recovery operation of each level is enhanced step by step, and bad perception of a user is not increased due to the fact that the automatic recovery operation is too aggressive.

In a first aspect, an embodiment of the present application provides a recovery method when activation of a cellular data service fails. The method comprises the following steps: when the cellular data service is continuously activated for multiple times, if the reason value of the multiple times of activation failure meets the consistency condition, the electronic equipment automatically resumes operation according to the grading, and retries the activation flow of the cellular data service; the hierarchical automatic recovery operation comprises multi-stage automatic recovery operation, and the automatic recovery operation of each stage is enhanced step by step; wherein the consistency condition is used to indicate that the root cause of the consecutive multiple activation failures of the cellular data service has not changed.

In this way, for the situation that the root cause of the continuous multiple activation failure of the cellular data service is not changed, the hierarchical automatic recovery operation is adopted to enable the cellular data service to be successfully activated, so that the situation that the cellular data cannot be activated for a long time and poor experience is brought to users is avoided. Moreover, the automatic recovery operation of each level is enhanced step by step, and bad perception of a user is not increased due to the fact that the automatic recovery operation is too aggressive.

In addition, the method is not limited to the known cause value of the activation failure of the cellular data service specified by the communication protocol, but can cover the failure cause value in the full scenario of the activation failure of the cellular data service, and no advanced configuration is needed. The automatic recovery scheme provided by the embodiment of the application can be triggered only by multiple activation failures based on the same cause value, so that the cellular data service of the electronic equipment can be successfully activated.

According to a first aspect, the reason value for multiple activation failures satisfies a consistency condition may include: in the multiple activation failure of the cellular data service, if the cause value of the current activation failure is the same as the cause value of the initial activation failure, it is determined that the cause value of the multiple activation failure satisfies the consistency condition.

According to the first aspect, or any implementation manner of the first aspect, the reason value of the multiple activation failure satisfies the consistency condition may include: in the multiple activation failures of the cellular data service, if the reason values of the activation failures are the same, it is determined that the reason values of the multiple activation failures meet the consistency condition.

According to the first aspect, or any implementation manner of the first aspect, the electronic device retries an activation procedure of a cellular data service according to a hierarchical automatic recovery operation, which may include: when the cellular data service is continuously activated for a plurality of times, if the accumulated time length of the plurality of times of activation failure is greater than a first threshold value, and/or the accumulated time number of times of activation failure is greater than a second threshold value, and/or if the cause value of the current activation failure is not a specific cause value, the electronic equipment retries the activation flow of the cellular data service according to the hierarchical automatic recovery operation.

The specific cause value refers to a cause value of a corresponding recovery scheme specified in the communication protocol. For example, the specific cause value may be "cause #33", and the restoration manner corresponding thereto is defined in the communication protocol to turn off the SA mode of the UE to make the UE reactivate on LTE.

For these specific cause values, the recovery scheme provided by the embodiments of the present application need not be employed. That is, when the restoration service determines that the current cause value of the activation failure of the cellular data service is not the specific cause value, the restoration service continues to determine whether to automatically restore the operation according to the hierarchy, and retries the activation flow of the cellular data service.

According to the first aspect, or any implementation manner of the first aspect, the electronic device retries an activation procedure of a cellular data service according to a hierarchical automatic recovery operation, which may include: if the current cellular network of the electronic equipment is not provided with the operator network and/or the electronic equipment is not provided with the internet surfing application, the electronic equipment automatically resumes operation according to the grading and retries the activation flow of the cellular data service.

By way of example, a non-setting communications carrier network may refer to a non-overseas (or overseas) communications carrier network.

By way of example, setting up a web application may refer to an application program that provides overseas web services.

In this implementation manner, considering that the recovery scheme provided by the embodiment of the present application may violate the regional communication specification in the set region, the recovery scheme provided by the embodiment of the present application may be triggered to be executed only when the current cellular network of the mobile phone is a non-set communication carrier network and/or when the current non-set internet application is not adopted.

According to a first aspect, or any implementation manner of the first aspect, the cause value of the activation failure includes a cause value specified by a communication protocol and a cause value customized by a chip manufacturer.

In this way, the failure cause value aimed at by the recovery scheme provided by the embodiment of the application is more comprehensive, and is not only suitable for the cause value specified by the communication protocol, but also suitable for the cause value customized by the chip manufacturer. Moreover, the related cause value does not need to be configured in advance, and the automatic recovery scheme provided by the embodiment of the application can be triggered as long as the activation fails for a plurality of times based on the same cause value, so that the cellular data service of the electronic equipment can be successfully activated.

According to the first aspect, or any implementation manner of the first aspect, the electronic device retries an activation procedure of a cellular data service according to a hierarchical automatic recovery operation, including: when the electronic equipment cannot successfully activate the cellular data service according to the first automatic recovery operation, the electronic equipment retries the activation flow of the cellular data service according to the second automatic recovery operation; the level of the second automatic recovery operation is higher than the intensity of the first automatic recovery operation.

In the implementation mode, a plurality of automatic recovery means are adopted to try step by step, and the automatic recovery means are enhanced step by step to successfully activate the cellular data service of the electronic equipment, so that the problem that the self-recovery means are too aggressive can be avoided, and bad perception of a user is greatly reduced.

According to a first aspect, or any implementation manner of the first aspect, the hierarchical automatic recovery operation includes a four-level automatic recovery operation; the first-stage automatic recovery operation comprises the step of closing an SA mode of the electronic equipment; the second-stage automatic recovery operation comprises updating the data configuration of the Modem side; the third-stage automatic recovery operation comprises Modem initialization; the fourth stage of automatic recovery operation comprises Modem restarting.

According to the first aspect, or any implementation manner of the first aspect, the electronic device retries an activation procedure of a cellular data service according to a hierarchical automatic recovery operation, including:

when the automatic recovery level is one level, the electronic equipment retries the activation flow of the cellular data service according to the first level automatic recovery operation, namely, the SA mode of the electronic equipment is closed. Wherein the automatic recovery level is used to indicate the level at which the automatic recovery operation is performed, as referred to hereinafter as act.

If the current network of the electronic equipment is a 5G SA network, the SA mode of the electronic equipment can be closed, so that the electronic equipment can activate the cellular data service again under the 4G LTE network. Because the processing flows of the SA network and the LTE network are separated, the method can be preferentially and quickly recovered under the LTE network, so that the cellular data service of the electronic equipment is successfully activated.

Meanwhile, the electronic device may also set a delay time (delay time) of the SA mode of the electronic device. When the closing time of the SA mode of the electronic equipment reaches the deferred time, the recovery service can start the SA mode of the electronic equipment, so that the electronic equipment can reside in the 5G SA network again and activate the cellular data service again.

When the automatic recovery level is the second level, the electronic device retries the activation flow of the cellular data service according to the second level automatic recovery operation, that is, updating the data configuration (such as data profile) of the Modem side.

The AP side triggers the Modem side to update the data configuration, and retries the activation flow of the cellular data service based on the updated data configuration. Wherein, the Modem side updates the relevant parameter stored in the data configuration for activating the cellular data service.

For example, aiming at the situation that the data on the Modem side is configured with false activation failure of the cellular data service, a second-stage automatic recovery operation is executed, and the activation flow of the cellular data service is retried, so that the activation of the cellular data service of the electronic equipment is successful.

When the automatic recovery level is three-level and the network residence state of the electronic equipment is normal and the first time is longer than the third threshold, the electronic equipment automatically recovers according to the third level, namely initializes the Modem and retries the activation flow of the cellular data service; the first time is a time interval between the current time and the first time, and the first time is a time when the activation flow of the cellular data service is retried according to the third-level automatic recovery operation.

Illustratively, initializing the Modem can be accomplished by triggering the Modem to perform a restart radio operation.

Wherein the first duration is the first penalty duration mentioned below. Illustratively, the first duration is 4 hours.

Thus, after the Modem performs the restart radio operation, the Modem re-registers with the access network to complete the network residence operation of the electronic device, and re-performs the activation procedure of the cellular data service.

For example, for the continuous activation failure scene of the cellular data service, the state of the Modem is abnormal or the state of the Modem is not synchronous with the state of the telephone manager, the recovery service executes the third-level automatic recovery operation, retries the activation flow of the cellular data service, and can enable the cellular data service of the electronic device to be activated successfully.

For example, aiming at a continuous activation failure scene of the cellular data service, the network equipment exits from a specific scene, the Modem side cannot recover normally, the recovery service executes a third-level automatic recovery operation, and retries the activation flow of the cellular data service, so that the cellular data service of the electronic equipment is activated successfully.

When the automatic recovery level is four, the network residence state of the electronic equipment is normal, and the second time period is longer than the fourth threshold value, the electronic equipment automatically recovers the operation according to the fourth level, namely restarting the Modem, and retrying the activation flow of the cellular data service; the second time is a time interval between the current time and the second time, and the second time is a time when the activation flow of the cellular data service is retried according to the fourth-stage automatic recovery operation.

Wherein the second duration is the second penalty duration mentioned below. The second time period is, for example, 6 hours.

And the fourth-stage automatic recovery operation reloads the card-following characteristic configuration on the basis of Modem initialization. Therefore, the fourth-stage automatic recovery operation not only updates the card following characteristic configuration, but also restarts the Modem and the RIL (the RIL restarts along with the Modem), so that the channel problems such as the initialization failure of the AT command transmission channel can be avoided, and the RIL can successfully send the AT command to the Modem.

For example, aiming AT the situation that the continuous activation failure of the cellular data service exists in the startup initialization stage of the electronic equipment, the AT command sending interface fails to send the AT command successfully, the recovery service executes the fourth-level automatic recovery operation, and the activation flow of the cellular data service is retried, so that the cellular data service of the electronic equipment can be activated successfully.

According to the first aspect, or any implementation manner of the first aspect above, the fourth threshold is greater than the third threshold.

According to the first aspect, or any implementation manner of the first aspect, the electronic device retries an activation procedure of the cellular data service according to a third level automatic recovery operation, which may include: when the electronic equipment is not in a call state, the electronic equipment automatically resumes operation according to the third stage, and retries the activation flow of the cellular data service.

The electronic device retries the activation flow of the cellular data service according to the fourth-level automatic recovery operation, and may include: and when the electronic equipment is not in a call state, the electronic equipment automatically resumes operation according to the fourth stage and retries the activation flow of the cellular data service.

In one application scenario, a user places a call using a cell phone in a state where the cell phone is connected to a Wi-Fi network. When the mobile phone leaves the coverage area of the Wi-Fi network, the mobile phone automatically disconnects the Wi-Fi network to switch from the Wi-Fi network to the cellular data network. At this time, the mobile phone may execute a procedure of activating the cellular data service, and a problem of continuous activation failure of the cellular data service may occur. At the same time, the user's voice call is still continuing and is not hung up. In this case, if the restoration service needs to perform the third-stage automatic restoration operation or the fourth-stage automatic restoration operation, the corresponding automatic restoration operation needs to be performed after the user hangs up the phone to avoid affecting the voice call of the user.

According to the first aspect, or any implementation manner of the first aspect, the method further includes: after retrying the activation flow of the cellular data service, if the cellular data service is successfully activated, the electronic device reports an automatic recovery record to the cloud server.

According to a first aspect, or any implementation manner of the first aspect, the automatically recovering the record includes at least one of: the method comprises the steps of automatic recovery operation type, automatic recovery operation level, a cause value of the activation failure of the cellular data service, accumulated duration of continuous activation failure of the cellular data service and triggering reason of the automatic recovery operation.

According to the first aspect, or any implementation manner of the first aspect, the method further includes: and when the automatic recovery operation is Modem initialization or Modem restarting, the electronic equipment gives an early warning to the cloud server.

In a second aspect, an embodiment of the present application provides an electronic device, including: a plurality of processors; the processor comprises an application processor AP and a Modem processor Modem; a memory; and one or more computer programs, wherein the one or more computer programs are stored on the memory, which when executed by the one or more processors, cause the electronic device to perform the steps of:

when the cellular data service is continuously activated for multiple times, if the reason value of the multiple times of activation failure meets the consistency condition, the electronic equipment automatically resumes operation according to the grading, and retries the activation flow of the cellular data service; the hierarchical automatic recovery operation comprises multi-stage automatic recovery operation, and the automatic recovery operation of each stage is enhanced step by step; wherein the consistency condition is used to indicate that the root cause of the consecutive multiple activation failures of the cellular data service has not changed.

According to a second aspect, the computer program, when executed by one or more processors, causes the electronic device to perform the steps of: in the multiple activation failures of the cellular data service, if the cause value of the current activation failure is the same as the cause value of the initial activation failure, the electronic device determines that the cause value of the multiple activation failure satisfies the consistency condition.

According to a second aspect, or any implementation of the second aspect above, the computer program, when executed by one or more processors, causes the electronic device to perform the steps of: in the multiple activation failures of the cellular data service, if the cause values of the multiple activation failures are the same, the electronic device determines that the cause values of the multiple activation failures meet the consistency condition.

According to a second aspect, or any implementation of the second aspect above, the computer program, when executed by one or more processors, causes the electronic device to perform the steps of: when the cellular data service is continuously activated for a plurality of times, if the accumulated time length of the plurality of times of activation failure is greater than a first threshold value, and/or the accumulated time number of times of activation failure is greater than a second threshold value, and/or if the cause value of the current activation failure is not a specific cause value, the electronic equipment retries the activation flow of the cellular data service according to the hierarchical automatic recovery operation.

According to a second aspect, or any implementation of the second aspect above, the computer program, when executed by one or more processors, causes the electronic device to perform the steps of: if the current cellular network of the electronic equipment is not provided with the operator network and/or the electronic equipment is not provided with the internet surfing application, the electronic equipment automatically resumes operation according to the grading and retries the activation flow of the cellular data service.

According to a second aspect, or any implementation manner of the second aspect, the cause value of the activation failure includes a cause value specified by a communication protocol and a cause value customized by a chip manufacturer.

According to a second aspect, or any implementation of the second aspect above, the computer program, when executed by one or more processors, causes the electronic device to perform the steps of: when the AP cannot successfully activate the cellular data service according to the first automatic recovery operation, the AP retries the activation flow of the cellular data service according to the second automatic recovery operation; the level of the second automatic recovery operation is higher than the intensity of the first automatic recovery operation.

According to a second aspect, or any implementation manner of the second aspect above, the hierarchical automatic recovery operation includes a four-level automatic recovery operation; the first-stage automatic recovery operation comprises the step of closing an SA mode of the electronic equipment; the second-stage automatic recovery operation comprises updating the data configuration of the Modem side; the third-stage automatic recovery operation comprises Modem initialization; the fourth stage of automatic recovery operation comprises Modem restarting.

According to a second aspect, or any implementation of the second aspect above, the computer program, when executed by one or more processors, causes the electronic device to perform the steps of:

when the automatic recovery level is one level, the AP retries the activation flow of the cellular data service according to the first level automatic recovery operation, namely, the SA mode of the electronic equipment is closed. Wherein the automatic recovery level is used to indicate a level at which an automatic recovery operation is performed.

When the automatic recovery level is the second level, the AP retries the activation flow of the cellular data service according to the second level automatic recovery operation, namely, the AP triggers the Modem side to update the data configuration (such as data profile).

When the automatic recovery level is three-level and the resident state of the electronic equipment is normal and the first time is longer than the third threshold, the AP retries the activation flow of the cellular data service according to the third-level automatic recovery operation, namely, the AP triggers the Modem initialization; the first time is a time interval between the current time and the first time, and the first time is a time when the activation flow of the cellular data service is retried according to the third-level automatic recovery operation.

When the automatic recovery level is four, the network state of the resident electronic equipment is normal, and the second time period is longer than a fourth threshold value, the AP automatically recovers according to the fourth level, namely, the AP triggers the Modem to restart, and retries the activation flow of the cellular data service; the second time is a time interval between the current time and the second time, and the second time is a time when the activation flow of the cellular data service is retried according to the fourth-stage automatic recovery operation.

According to a second aspect, or any implementation of the second aspect above, the fourth threshold is greater than the third threshold.

According to a second aspect, or any implementation of the second aspect above, the computer program, when executed by one or more processors, causes the electronic device to perform the steps of: when the electronic equipment is not in a call state, the AP retries the activation flow of the cellular data service according to the third-level automatic recovery operation; and when the electronic equipment is not in a call state, the AP retries the activation flow of the cellular data service according to the fourth-stage automatic recovery operation.

According to a second aspect, or any implementation of the second aspect above, the computer program, when executed by the one or more processors, causes the electronic device to further perform the steps of: after retrying the activation flow of the cellular data service, if the cellular data service is successfully activated, the electronic device reports an automatic recovery record to the cloud server.

According to a second aspect, or any implementation manner of the second aspect, the automatically recovering the record includes at least one of: the method comprises the steps of automatic recovery operation type, automatic recovery operation level, a cause value of the activation failure of the cellular data service, accumulated duration of continuous activation failure of the cellular data service and triggering reason of the automatic recovery operation.

According to a second aspect, or any implementation of the second aspect above, the computer program, when executed by the one or more processors, causes the electronic device to further perform the steps of: and when the automatic recovery operation is Modem initialization or Modem restarting, the electronic equipment gives an early warning to the cloud server.

Any implementation manner of the second aspect and the second aspect corresponds to any implementation manner of the first aspect and the first aspect, respectively. The technical effects corresponding to the second aspect and any implementation manner of the second aspect may be referred to the technical effects corresponding to the first aspect and any implementation manner of the first aspect, which are not described herein.

In a third aspect, embodiments of the present application provide an electronic device including one or more processors; a memory; and one or more computer programs, wherein the one or more computer programs are stored on the memory, which when executed by the one or more processors, cause the electronic device to perform the recovery method of the first aspect or any of the first aspects upon failure to activate the cellular data service.

Any implementation manner of the third aspect and any implementation manner of the third aspect corresponds to any implementation manner of the first aspect and any implementation manner of the first aspect, respectively. The technical effects corresponding to the third aspect and any implementation manner of the third aspect may be referred to the technical effects corresponding to the first aspect and any implementation manner of the first aspect, which are not described herein.

In a fourth aspect, an embodiment of the present application provides a chip, where the chip includes a processing circuit and a transceiver pin. Wherein the transceiver pin and the processing circuit communicate with each other via an internal connection path, the processing circuit performing a recovery method upon failure of activation of the cellular data service as in the first aspect or any one of the first aspects to control the receiving pin to receive signals to control the transmitting pin to transmit signals.

Any implementation manner of the fourth aspect and any implementation manner of the fourth aspect corresponds to any implementation manner of the first aspect and any implementation manner of the first aspect, respectively. Technical effects corresponding to any implementation manner of the fourth aspect may be referred to the technical effects corresponding to any implementation manner of the first aspect, and are not described herein.

In a fifth aspect, an embodiment of the present application provides a computer program product comprising a computer program which, when executed, causes a computer to perform the recovery method of any one of the first aspect and the first aspect when cellular data service activation fails.

Any implementation manner of the fifth aspect and any implementation manner of the fifth aspect corresponds to any implementation manner of the first aspect and any implementation manner of the first aspect, respectively. Technical effects corresponding to any implementation manner of the fifth aspect may be referred to the technical effects corresponding to any implementation manner of the first aspect, and are not described herein.

In a sixth aspect, embodiments of the present application provide a computer-readable storage medium. The computer readable storage medium comprises a computer program which, when run on an electronic device, causes the electronic device to perform the first aspect and the recovery method of any of the first aspects upon failure of activation of the cellular data service.

Any implementation manner of the sixth aspect corresponds to any implementation manner of the first aspect and the first aspect, respectively. Technical effects corresponding to any implementation manner of the sixth aspect may be referred to the technical effects corresponding to any implementation manner of the first aspect, and are not described herein.

Drawings

Fig. 1 is a schematic diagram of an exemplary cellular mobile communication system architecture;

FIG. 2 is a schematic diagram of an exemplary application scenario;

FIG. 3 is a schematic diagram of an exemplary application scenario;

FIGS. 4 a-4 b are application scenario diagrams schematically illustrated;

fig. 5 is a schematic view of an exemplary application scenario;

fig. 6 is a schematic diagram of a hardware structure of an exemplary electronic device;

FIG. 7 is a schematic diagram of a software architecture of an exemplary electronic device;

Fig. 8 is a schematic diagram illustrating the interaction of the modules involved in the cellular data service activation procedure;

fig. 9 is a schematic diagram illustrating module interactions involved in an automatic recovery procedure when cellular data service activation fails;

fig. 10a is a schematic flow diagram illustrating automatic recovery upon failure of cellular data service activation;

fig. 10b is a schematic flow diagram illustrating automatic recovery upon failure of cellular data service activation;

FIG. 11 is a schematic diagram illustrating hierarchical auto-recovery;

fig. 12 is a flow chart illustrating an exemplary hierarchical auto-recovery.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone.

The terms first and second and the like in the description and in the claims of embodiments of the application, are used for distinguishing between different objects and not necessarily for describing a particular sequential order of objects. For example, the first target object and the second target object, etc., are used to distinguish between different target objects, and are not used to describe a particular order of target objects.

In embodiments of the application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

In the description of the embodiments of the present application, unless otherwise indicated, the meaning of "a plurality" means two or more. 5 for example, the plurality of processing units means two or more processing units; the plurality of systems means two or more systems.

The technical scheme provided by the embodiment of the application is suitable for a 3G communication system, a 4G communication system, a 5G communication system and a 5G communication system

The above communication system, and subsequently evolving communication systems supporting third generation partnership project (3rd Generation Partnership0Project,3GPP) protocol versions, such as: CDMA (Code Division Multiple Access code)

Division multiple access) system, WCDMA (Wideband Code Division Multiple Access ) system, CDMA (Code Division Multiple Access, code Division multiple access) 2000 system, TD-SCDMA (Time Division-Synchronization Code Division Multiple Access, time Division synchronous code Division multiple access) system, LTE

(Long Term Evolution, long term evolution system), FDD (Frequency Division Duplex ) 5-LTE system, TDD (Time Division Duplex, time division Duplex) -LTE system, 5G NR (New Radio,

new air interface) system, etc., which is not limited in this embodiment of the present application.

Fig. 1 schematically shows a schematic diagram of a cellular mobile communication system architecture. As shown in fig. 1, the system architecture may include: terminal device 10, access network device 20, and core network device 30.

The terminal device 10 may refer to a UE (User Equipment), such as a smart phone, a tablet computer, a 0 notebook computer, a smart wearable device, a PDA (Personal Digital Assistant ), etc. Terminal (A)

The end device 10 may also be a wireless communication device such as an access terminal, subscriber unit, subscriber station, mobile station, remote terminal, etc., as the embodiments of the application are not limited in this regard.

The access network device 20 is a device deployed in the access network to provide wireless communication functionality for the terminal device 10.

The access network device 20 may include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems employing different 5 radio access technologies, the names of access network device-capable devices may be different, for example in 5G NR systems, called gndeb or gNB. As communication technology evolves, the name "access network device" may change. For convenience of description, the above-described means for providing the terminal device 10 with a wireless communication function may be collectively referred to as an access network device.

The core network device 30 is a device that can provide the terminal device 10 with functions of session management, mobility relation, policy management, security 0 security authentication, and the like. The core network device 30 may include, for example, a first core network device and a second core network device

The device, wherein the first core network device is responsible for access management and mobility management of the terminal device 10, and the second core network device is responsible for session management of the terminal device 10. Alternatively, in a 5G NR system, a first core network device may implement AMF (Access and Mobility Management Function, access and mobility management functions), and a second core network device may implement SMF (Session Management Function, session management functions).

Taking the 5G NR system as an example, the system architecture may include: UE, radio access Network (Radio Access Network, RAN), 5G core Network (5G core network,5GC), and Data Network (DN). The terminal device may be connected to a radio access network deployed by an operator through a radio air interface, and then to a data network through a core network, and use various services provided by the 5 GC.

After the terminal equipment successfully activates the cellular data service, the user can use the terminal equipment to perform internet surfing operation. However, in the process of activating the cellular data service by the terminal device, due to a potential problem on the Modem (Modem processor) side or a network side problem of the terminal device, network connection may fail, and the network connection may not be recovered for a long time, so that the cellular data service of the terminal device fails to be activated, and a user cannot normally surf the internet.

Taking the 5G network as an example, the terminal device needs to establish a PDU (Protocol Data Unit ) session when activating the cellular data service. Before the terminal device establishes the PDU session, some anomalies may be caused by the potential problem of the terminal device Modem, which may lead to a failure of the cellular data service activation of the terminal device. When the terminal equipment establishes the PDU session, some anomalies may be caused by network problems, which may further cause the activation failure of the cellular data service of the terminal equipment.

Similarly, taking the example of a 4G network, the terminal device needs to establish a PDN (Packet Data Network ) session when activating cellular data services. Before the terminal equipment establishes the PDN session, some anomalies may be caused by the potential problem of the terminal equipment Modem, which may lead to failure of the cellular data service activation of the terminal equipment. When the terminal equipment establishes the PDN session, some anomalies may be caused by network problems, which may further cause the activation failure of the cellular data service of the terminal equipment.

However, in the above situation, since there is no effective log and time-sequence problem, the developer cannot locate and solve the problem. Thus, how to automatically recover to successfully activate the cellular data service when the cellular data service fails to be activated is a problem to be solved.

The following will take a terminal device as an example of a mobile phone, and a scenario involving activation of a cellular data service will be briefly described.

In one scenario, a user's power-on operation or an automatic power-on of the mobile phone triggers the mobile phone to execute a process of activating the cellular data service. As shown in fig. 2 (1), the user performs a power-on operation, such as pressing a power key of the mobile phone for a long time. And responding to the operation of the user, and executing the starting-up process by the mobile phone. During the power-on process, the handset performs a procedure for activating the cellular data service. The mobile phone mentioned in this scenario is provided with a SIM (Subscriber Identification Module, subscriber identity module) card, and the cellular data function option in the mobile phone is set to an on state.

In one scenario, a user's operation to turn on the cellular data function triggers the handset to perform the process of activating the cellular data service. In one implementation, as shown in fig. 2 (2), in the handset setup application, the user clicks on the switch control of the mobile data (or cellular data) function option to switch the on-off state of the mobile data function option from the off state to the on state. The user can perform internet surfing operation based on the cellular data network only when the switch state of the mobile data function option in the mobile phone is in an on state. In another implementation, in the handset drop-down notification bar, the user clicks an icon of the mobile data function option to switch the on-off state of the mobile data function option from the off state to the on state. In response to a user operation, the handset performs a procedure for activating the cellular data service. The mobile phone mentioned in the present scenario is provided with a SIM card, and the SIM card is already resident in the network and is not connected with the Wi-Fi network.

In one scenario, a user leaves the coverage area of a Wi-Fi network with a mobile phone, and the mobile phone disconnects the Wi-Fi network and triggers the mobile phone to execute a process of activating cellular data service. When the mobile phone enters the coverage area of the Wi-Fi network, the mobile phone can automatically connect to the Wi-Fi network (assuming that the mobile phone is connected to the Wi-Fi network), and the cellular data service is deactivated, so that the user can perform internet surfing operation based on the Wi-Fi network. As shown in fig. 3, when the handset leaves the coverage of the Wi-Fi network, the handset automatically disconnects the Wi-Fi network to switch from the Wi-Fi network to the cellular data network. At this point, the handset performs a procedure to activate the cellular data service. Similarly, the mobile phone mentioned in this scenario is provided with a SIM card, and the cellular data function option in the mobile phone is set to be in an on state.

In one scenario, the user's operation of inserting the SIM card triggers the handset to perform the process of activating the cellular data service. At present, most mobile phones support hot plug (or live plug) operation of the SIM card, namely, a user can take down or insert the SIM card of the mobile phone under the state of not closing the mobile phone, and the use requirement is met. As shown in fig. 4a, when the mobile phone is not powered off, the user inserts the SIM card into the SIM card slot, and triggers the loading process of the SIM card and the network residence process of the mobile phone. In the case where the cellular data function option is set to the on state in the handset, the handset also performs a procedure for activating the cellular data service.

In one scenario, for a dual-card dual-standby handset, a user switches operation of a mobile data default SIM card, which triggers the handset to execute a procedure for activating cellular data service. Illustratively, as shown in FIG. 4b, the user clicks on the option corresponding to "card 1" to default SIM card to "card 1" as mobile data. In response to the user's operation, the mobile data default SIM card of the mobile phone is switched from "card 2" to "card 1". At this time, the mobile phone executes the process of deactivating the cellular data service corresponding to the "card 2" and executes the process of activating the cellular data service corresponding to the "card 1". Similarly, the cellular data function option in the mobile phone mentioned in this scenario is set to be in an on state, and the mobile phone is already resident in the network and is not connected to the Wi-Fi network.

In the above, taking a mobile phone as an example, several application scenarios related to activating cellular data services are provided by way of example, which is not limited by the embodiment of the present application. Regarding other application scenarios involving activation of cellular data services, embodiments of the present application are not described in detail.

After the cellular data service of the mobile phone is successfully activated, the identification of the cellular data service is displayed at the corresponding signal icon in the mobile phone status bar. As shown in fig. 5, only one SIM card is inserted into the dual-card dual-standby mobile phone, and after the cellular data service corresponding to the SIM card is successfully activated, the identifier 101 of the cellular data service is displayed at the signal icon corresponding to the SIM card in the mobile phone status bar, so as to prompt the user that the mobile phone is connected to the cellular network, and the application program is using or preparing to use the cellular data. If the activation of the cellular data service corresponding to the SIM card fails, or the cellular data service corresponding to the SIM card is successfully deactivated, the identifier 101 of the cellular data service at the signal icon corresponding to the SIM card in the status bar of the mobile phone disappears, so as to prompt that the user electronic device is not connected to the cellular network, and the application program does not use the cellular data.

As described above, in the application scenario involving activation of cellular data service, due to a potential problem on the Modem side or a problem on the network side of the terminal device, network connection may fail, and may not be recovered for a long time, so that activation of cellular data service of the terminal device fails, and a user cannot normally surf the internet. Therefore, how to automatically recover to successfully activate the cellular data service when the cellular data service fails to be activated is a problem to be solved.

In order to solve the technical problems, the embodiment of the application provides a recovery method when the activation of the cellular data service fails. In the method, when the cellular data service of the terminal equipment fails to be activated and cannot be recovered within a period of time, the terminal equipment actively carries out graded self-healing, and the self-healing means is enhanced step by step until the cellular data service is successfully activated. In this way, the terminal equipment adopts a hierarchical self-healing method to enable the cellular data service to be successfully activated, so that the problem that the self-healing method is too aggressive can be avoided, and the use perception of a user is greatly reduced.

Fig. 6 is a schematic structural diagram of the electronic device 100. Alternatively, the electronic device 100 may be referred to as a terminal, or may be referred to as a terminal device, which is not limited by the present application. It should be noted that the schematic structural diagram of the electronic device 100 may be applicable to the UE mentioned above. It should be understood that the electronic device 100 shown in fig. 6 is only one example of an electronic device, and that the electronic device 100 may have more or fewer components than shown in the figures, may combine two or more components, or may have a different configuration of components. The various components shown in fig. 6 may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.

The electronic device 100 may include: processor 110, external memory interface 120, internal memory 121, universal serial bus (universal serial bus, USB) interface 130, charge management module 140, power management module 141, battery 142, antenna 1, antenna 2, mobile communication module 150, wireless communication module 160, audio module 170, speaker 170A, receiver 170B, microphone 170C, headset interface 170D, sensor module 180, keys 190, motor 191, indicator 192, camera 193, display 194, and SIM card interface 195, etc. The sensor module 180 may include a pressure sensor, a gyroscope sensor, an acceleration sensor, a temperature sensor, a motion sensor, a barometric sensor, a magnetic sensor, a distance sensor, a proximity sensor, a fingerprint sensor, a touch sensor, an ambient light sensor, a bone conduction sensor, etc.

The processor 110 may include one or more processing units, such as: the processor 110 may include an application processor (application processor, AP), a Modem processor (Modem), a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), a controller, a memory, a video codec, a digital signal processor (digital signal processor, DSP), a baseband processor, and/or a neural network processor (neural-network processing unit, NPU), etc. Wherein the different processing units may be separate devices or may be integrated in one or more processors.

The controller may be a neural hub and a command center of the electronic device 100, among others. The controller can generate operation control signals according to the instruction operation codes and the time sequence signals to finish the control of instruction fetching and instruction execution.

A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory.

The USB interface 130 is an interface conforming to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like. The USB interface 130 may be used to connect a charger to charge the electronic device 100, and may also be used to transfer data between the electronic device 100 and a peripheral device. And can also be used for connecting with a headset, and playing audio through the headset.

The charge management module 140 is configured to receive a charge input from a charger. The charger can be a wireless charger or a wired charger. The charging management module 140 may also supply power to the electronic device through the power management module 141 while charging the battery 142.

The power management module 141 is used for connecting the battery 142, and the charge management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charge management module 140 and provides power to the processor 110, the internal memory 121, the external memory, the display 194, the camera 193, the wireless communication module 160, and the like.

The wireless communication function of the electronic device 100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the electronic device 100 may be used to cover a single or multiple communication bands. Different antennas may also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed into a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution for wireless communication including 2G/3G/4G/5G, etc., applied to the electronic device 100. The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA), etc. The mobile communication module 150 may receive electromagnetic waves from the antenna 1, perform processes such as filtering, amplifying, and the like on the received electromagnetic waves, and transmit the processed electromagnetic waves to the modem processor for demodulation. The mobile communication module 150 can amplify the signal modulated by the modem processor, and convert the signal into electromagnetic waves through the antenna 1 to radiate. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be provided in the same device as at least some of the modules of the processor 110.

A Modem processor (Modem) runs on the baseband chip and the coprocessor, and a SIM card module is arranged in the Modem, and can be used for providing functions related to SIM information such as network registration, authentication and the like. For example, when using an electronic device with a Modem, a user may implement a range of SIM card functions by triggering a local application. The SIM card may be a physical card (or called a hard card) or a virtual SIM card (or called a soft card), and may include an embedded chip type Subscriber Identity Module (SIM) card, or the like, and the specific form of the SIM card is not limited in the embodiment of the present application.

The modem processor may include a modulator and a demodulator. The modulator is used for modulating the low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then transmits the demodulated low frequency baseband signal to the baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and then transferred to the application processor. The application processor outputs sound signals through an audio device (not limited to the speaker 170A, the receiver 170B, etc.), or displays images or video through the display screen 194. In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be provided in the same device as the mobile communication module 150 or other functional module, independent of the processor 110.

The wireless communication module 160 may provide solutions for wireless communication including wireless local area network (wireless local area networks, WLAN) (e.g., wireless fidelity (wireless fidelity, wi-Fi) network), bluetooth (BT), global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field wireless communication technology (near field communication, NFC), infrared technology (IR), etc., as applied to the electronic device 100. The wireless communication module 160 may be one or more devices that integrate at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, modulates the electromagnetic wave signals, filters the electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, frequency modulate it, amplify it, and convert it to electromagnetic waves for radiation via the antenna 2.

In some embodiments, antenna 1 and mobile communication module 150 of electronic device 100 are coupled, and antenna 2 and wireless communication module 160 are coupled, such that electronic device 100 may communicate with a network and other devices through wireless communication techniques.

The electronic device 100 implements display functions through a GPU, a display screen 194, an application processor, and the like. Processor 110 may include one or more GPUs that execute program instructions to generate or change display information. The display screen 194 is used to display images, videos, and the like. The electronic device 100 may implement photographing functions through an ISP, a camera 193, a video codec, a GPU, a display screen 194, an application processor, and the like. The camera 193 is used to capture still images or video.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to enable expansion of the memory capabilities of the electronic device 100.

The internal memory 121 may be used to store computer executable program code including instructions. The processor 110 executes the instructions stored in the internal memory 121, thereby executing various functional applications and data processing of the electronic device 100, so that the electronic device 100 implements the recovery method when the activation of the cellular data service fails in the embodiment of the present application.

The electronic device 100 may implement audio functions through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, an application processor, and the like. Such as music playing, recording, etc.

The audio module 170 is used to convert digital audio information into an analog audio signal output and also to convert an analog audio input into a digital audio signal. The audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be disposed in the processor 110, or a portion of the functional modules of the audio module 170 may be disposed in the processor 110.

The speaker 170A, also referred to as a "horn," is used to convert audio electrical signals into sound signals. The electronic device 100 may listen to music, or to hands-free conversations, through the speaker 170A. A receiver 170B, also referred to as a "earpiece", is used to convert the audio electrical signal into a sound signal. When electronic device 100 is answering a telephone call or voice message, voice may be received by placing receiver 170B in close proximity to the human ear. Microphone 170C, also referred to as a "microphone" or "microphone", is used to convert sound signals into electrical signals. When making a call or transmitting voice information, the user can sound near the microphone 170C through the mouth, inputting a sound signal to the microphone 170C. The earphone interface 170D is used to connect a wired earphone.

The pressure sensor is used for sensing a pressure signal and can convert the pressure signal into an electric signal. In some embodiments, the pressure sensor may be provided on the display screen 194. The electronic device 100 may also calculate the location of the touch based on the detection signal of the pressure sensor.

Touch sensors, also known as "touch panels". The touch sensor may be disposed on the display screen 194, and the touch sensor and the display screen 194 form a touch screen, which is also referred to as a "touch screen". The touch sensor is used to detect a touch operation acting on or near it. The touch sensor may communicate the detected touch operation to the application processor to determine the touch event type.

The keys 190 include a power-on key (or power key), a volume key, etc. The keys 190 may be mechanical keys. Or may be a touch key. The electronic device 100 may receive key inputs, generating key signal inputs related to user settings and function controls of the electronic device 100.

The motor 191 may generate a vibration cue. The motor 191 may be used for incoming call vibration alerting as well as for touch vibration feedback. For example, touch operations acting on different applications (e.g., photographing, audio playing, etc.) may correspond to different vibration feedback effects.

The indicator 192 may be an indicator light, may be used to indicate a state of charge, a change in charge, a message indicating a missed call, a notification, etc.

The SIM card interface 195 is used to connect a SIM card. The SIM card may be inserted into the SIM card interface 195, or removed from the SIM card interface 195 to enable contact and separation with the electronic device 100. The electronic device 100 may support 1 or N SIM card interfaces, N being a positive integer greater than 1. The SIM card interface 195 may support Nano SIM cards, micro SIM cards, and the like. The same SIM card interface 195 may be used to insert multiple cards simultaneously. The types of the plurality of cards may be the same or different. The SIM card interface 195 may also be compatible with different types of SIM cards. The SIM card interface 195 may also be compatible with external memory cards. The electronic device 100 interacts with the network through the SIM card to realize functions such as communication and data communication. In some embodiments, the electronic device 100 employs esims, i.e.: an embedded SIM card. The eSIM card can be embedded in the electronic device 100 and cannot be separated from the electronic device 100.

In an embodiment of the application, the SIM card is used to store subscriber information, such as IMSI (International Mobile Subscriber Identification, international mobile subscriber identity) numbers. The user information stored in the SIM card may be used as an identity of the electronic device 100. In addition, the electronic device 100 may use the identity to initiate a call to another terminal through various voice solutions, and perform audio-video communication after the other terminal accepts the call.

The software system of the electronic device 100 may employ a layered architecture, an event driven architecture, a microkernel architecture, a microservice architecture, or a cloud architecture. In the embodiment of the application, taking an Android system with a layered architecture as an example, a software structure of the electronic device 100 is illustrated.

Fig. 7 is a software configuration block diagram of the electronic device 100 according to the embodiment of the present application.

The layered architecture of the electronic device 100 divides the software into several layers, each with a distinct role and division of labor. The layers communicate with each other through a software interface. In some embodiments, the Android system is divided into four layers, from top to bottom, an application layer, an application framework layer, a radio interface layer (Radio Layer Interface, RIL), and a Modem processor (Modem) layer, respectively.

For the electronic device 100 of fig. 6, data interaction between the application layer and the application framework layer may be performed through a conventional interface. Data interactions between the application framework layer and the RIL may be via a hardware abstraction layer interface definition language (Hardware Abstraction Layer Interface Definition Language, HIDL) interface. The RIL and the Modem layer can perform data interaction based on the chip architecture of the electronic equipment. For example, the RIL and Modem layer perform data interaction by pci express (peripheral component interconnect express, PCIE) or memory sharing.

The application layer may include a series of application packages.

As shown in fig. 7, the application package may include applications for conversation, camera, gallery, calendar, map, navigation, bluetooth, music, video, etc.

The application framework layer provides an application programming interface (application programming interface, API) and programming framework for application programs of the application layer. The application framework layer includes a number of predefined functions.

As shown in fig. 7, the application framework layer may include a Telephony manager (telephenyl), a connection service (Connectivity Service), and a recovery service.

Wherein the telephony manager is configured to provide management functions for cellular related services of the electronic device 100. For example, a telephony manager is used to provide management of call status (including on, and off, etc.) and cellular data connection status (including established connection with a cellular network, disconnected from a cellular network, being connected to a cellular network, being disconnected from a cellular network, etc.).

The connectivity service is used to manage the manner in which the electronic device 100 uses data traffic. The manner in which the electronic device 100 uses data services may include the electronic device using data services over a cellular network, or Wi-Fi, or a network cable, etc. The connection service may receive the change information and notify the change information through an interface that obtains other services. The connection service knows the cellular data connection status through the telephony manager. The connection service, after learning the cellular data connection status, may display or hide the identity of the cellular data service (such as identity 101 shown in fig. 5). Specifically, after knowing that the cellular data connection state is an established connection, the connection service displays an identifier of the cellular data service, thereby prompting the user: the electronic device is already connected to the cellular network and the application is using or preparing to use the cellular data. After knowing that the cellular data connection state is disconnected, the connection service hides the identification of the cellular data service, so as to prompt the user: the electronic device is not connected to the cellular network and the application does not use cellular data. It is understood that cellular networks may include 2G networks, 3G networks, 4G networks, 5G networks (e.g., SA networks), and the like.

The recovery service may be used to perform an automatic recovery operation when the cellular data service of the electronic device 100 fails to be activated, so that the cellular data service of the electronic device 100 is successfully activated. When the cellular data service of the electronic device 100 fails to be activated and cannot be recovered for a period of time, the recovery service actively performs a hierarchical recovery (or self-healing) operation, and the recovery means is enhanced step by step until the cellular data service is successfully activated. For detailed operation of the service, see below, which is not repeated here.

In a possible implementation, the application framework layer may further include a window manager, a content provider, a view system, a resource manager, a notification manager, etc. (not shown in fig. 7), which is not limited by the embodiment of the present application.

Wherein the window manager is used for managing window programs. The window manager can acquire the size of the display screen, judge whether a status bar exists, lock the screen, intercept the screen and the like.

The content provider is used to store and retrieve data and make such data accessible to applications. The data may include video, images, audio, calls made and received, browsing history and bookmarks, phonebooks, etc.

The view system includes visual controls, such as controls to display text, controls to display pictures, and the like. The view system may be used to build applications. The display interface may be composed of one or more views. For example, a display interface including a text message notification icon may include a view displaying text and a view displaying a picture.

The resource manager provides various resources for the application program, such as localization strings, icons, pictures, layout files, video files, and the like.

The notification manager allows the application to display notification information in a status bar, can be used to communicate notification type messages, can automatically disappear after a short dwell, and does not require user interaction. Such as notification information is used to inform that the download is complete, a message alert, etc.

The application layer and the application framework layer may be referred to as an AP side, as opposed to a Modem side. In the embodiment of the application, the recovery method when the cellular data service fails to be activated is triggered at the AP side, and specifically can be triggered in an application framework layer.

RIL is the interface layer between application framework layer and Modem layer, responsible for the transmission of the operation of the relevant business control plane of cellular, responsible for the reliable transmission of data. A radio interface layer daemon (Radio Interface Layer Daemon, rild) may be included in RIL, which may include: ril service module. For example, the ril service module may be configured to forward the SIM instruction sent by the phone manager via the HIDL interface to the Modem layer, and forward response data corresponding to the SIM instruction returned by the Modem layer, and the state or notification actively reported by the Modem layer to the phone manager.

The Modem layer includes a Modem processor (Modem), and the Modem may include: protocol stack and card processing module. The protocol stacks may include wireless communication protocol stacks such as 2G protocol stacks, 3G protocol stacks, 4G protocol stacks, and 5G protocol stacks.

The card processing module may comprise a related module of the SIM card. Such as a SIM card module, a local SIM card module, a SIM card slot driver, etc. The SIM card slot driver can be connected with a SIM hard card.

A SIM card module: for providing network registration, authentication, etc. functions related to SIM information. The SIM card module can support a local SIM card calling mode provided by the local SIM card module.

Local SIM card module: for enabling access to local SIM card information using a SIM card slot driver.

In a possible implementation, a SIM card slot driver and a SIM hard card may be provided in the Modem of the electronic device 100; alternatively, the SIM card slot driver and the SIM hard card may not be provided in the Modem of the electronic device 100, and the electronic device 100 may use the local eSIM.

The above Android system architecture schematic is merely illustrative, and is not meant to be limiting.

It will be appreciated that the layers and components contained in the layers in the software structure shown in fig. 7 do not constitute a specific limitation on the electronic device 100. In other embodiments of the application, electronic device 100 may include more or fewer layers than shown and may include more or fewer components per layer, as the application is not limited.

It can be understood that, in order to implement the recovery method when the activation of the cellular data service fails in the embodiment of the present application, the electronic device includes corresponding hardware and/or software modules that perform each function. The present application can be implemented in hardware or a combination of hardware and computer software, in conjunction with the example algorithm steps described in connection with the embodiments disclosed herein. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may implement the described functionality using different approaches for each particular application in conjunction with the embodiments, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It will be appreciated that when the electronic device 100 switches from a Wi-Fi network to an SA network, cellular data services need to be activated to establish a PDU session. And when the electronic device 100 switches from the SA network to the Wi-Fi network, it is necessary to deactivate cellular data traffic and release the PDU session.

The application scenario of the embodiment of the present application will be described below by taking the example that the electronic device leaves the coverage area of the Wi-Fi network, and when switching from the Wi-Fi network to the SA network (as shown in the scenario in fig. 3), the cellular data service needs to be activated, and a PDU session is established.

Fig. 8 is a schematic diagram of an information interaction scenario in which an electronic device activates a cellular data service. When the electronic equipment is connected to the Wi-Fi network, leaves the coverage area of the Wi-Fi network and is connected with the SA network, the electronic equipment is switched from the Wi-Fi network to the SA network, and the Wi-Fi network is disconnected. At this point, the electronic device needs to activate the cellular data service to establish the PDU session.

Specifically, as shown in fig. 8, the electronic device includes a connection service, a phone manager, an RIL, and a Modem, and the process of activating the cellular data service by the electronic device may include the following steps:

s201, the connection service transmits a network connection request message to the telephony manager. Wherein the network connection request message is for requesting establishment of a cellular data connection.

S202, after receiving the network connection request message, the telephone manager sends an activate data call request message to the RIL. Wherein the active data call request message is for requesting activation of the cellular data service.

S203, after the RIL receives the active data call request message, the RIL sends the active data call request message to the Modem through an AT command (AT command).

The AT (Attention) command is a unified Modem instruction standard. For example, when the Modem of the electronic device belongs to the high-pass platform, the AT command is sent to the Modem based on QMI (Qualcom Message Interface, high-traffic interface). Also exemplary, when the Modem of the electronic device belongs to the MTK (MediaTek inc.) platform, the AT command is sent to the Modem based on the MIPC (Mobile Industry Processor Interface ).

S204, after receiving the active data call request message, the Modem sends a request message for establishing a PDU session to the network device (e.g., base station). Wherein, the PDU session establishment request message is used for requesting the establishment of a PDU session.

S205, the network device establishes a PDU session in response to the PDU session establishment request message, thereby establishing a cellular data connection.

S206, the network device sends a PDU session completion establishment message to the Modem of the electronic device. The PDU session completion message is used for notifying the Modem of the electronic device that the network side has established the PDU session.

S207, after receiving the PDU session completion message, the Modem sends an activate data call response message to the RIL. Wherein the active data call response message is used to notify the RIL that the network side has activated the cellular data service.

S208, after the RIL receives the activation data call response message, the RIL sends the activation data call response message to the telephone administrator.

S209, after receiving the activation data call response message, the phone manager sends a network connection response message to the connection service. Wherein the network connection response message is used to notify the connection service that the network side has established the cellular data connection.

And S210, after the connection service receives the network connection response message, starting a network card driver of the cellular data service, and completing the activation of the cellular data service.

It will be appreciated that during the activation of cellular data services by electronic devices, problems with network connection failure may occur. The problem of the activation failure of the cellular data service may occur before the Modem of the electronic device sends the PDU session establishment request message to the network device, or may occur after the Modem of the electronic device sends the PDU session establishment request message to the network device.

Wherein, when the cellular data service fails to activate, the phone manager may receive an activate data call exception response message fed back by RIL. The active data call exception response message is used to indicate a cellular data service activation failure and may include, but is not limited to, a cause value for the cellular data service activation failure. The reason value of the activation failure of the cellular data service may be a reason value specified by a communication protocol, or may be a reason value customized by a chip manufacturer.

In one implementation, the activate data call exception response message may also include a time when the cellular data service activation failed. In another implementation, the telephony manager receives the active data call exception response message and takes the time of receipt of the active data call exception response message as the time of failure of activation of the cellular data service.

In connection with the application scenarios shown in fig. 2, 3, 4a, and 4b, the problem of failure in activation of the cellular data service may occur in the SIM card loading stage, the power-on initialization stage, the network side establishing the PDU session stage, and so on.

For example, in the SIM card loading stage of the electronic device, the electronic device cannot ensure the sequential timing of the network connection request issued by the phone manager and the Modem loading communication characteristic configuration (such as MBN (Modem Software Configuration, modem software configuration)), which may cause errors in Modem side data configuration. For example, the data profile of the Modem side may be wrong, for example, APN (Access Point Name ) and the like are wrong, which may further cause continuous activation failure of the cellular data service of the electronic device.

Also, for example, during the power-on initialization phase of the electronic device, an AT command transmission interface initialization failure problem may occur during RIL loading due to unknown reasons. For example, taking a high-pass platform as an example, during the RIL loading process, a QMI initialization failure problem may occur, which further causes that the RIL cannot successfully send an AT command to the Modem in a subsequent procedure of cellular data activation, so that the cellular data service is continuously activated and fails. For another example, taking the MTK platform as an example, in the RIL loading process, the problem of MIPC initialization failure may occur, which further causes that the RIL cannot successfully send the AT command to the Modem in the subsequent procedure of cellular data activation, so that the cellular data service is continuously activated and fails.

Also, for example, in the cellular data service activation procedure, a Modem status exception may be caused due to an unknown failure of a chip vendor, such as a D2RM status error of the MTK platform, etc. In addition, the state of the Modem may not be synchronized with the state of the phone manager, so that the continuous activation of the cellular data service fails due to the status judgment error in the subsequent process.

In the cellular data service activation flow, if the network device triggers a specific scenario, if the Modem side of the electronic device processes an abnormality, the network device exits the specific scenario, and the Modem side cannot be normally restored, the problem of continuous activation failure of the cellular data service of the electronic device may be caused. For example, in the attach process, after the network device releases RRC (Radio Resource Control ) connection, a specific suppression scenario of the chip manufacturer is triggered, if the Modem side of the electronic device processes an abnormality, the network device exits the scenario, and at the same time, the Modem side cannot exit and recover to be normal, which further results in continuous activation failure of the cellular data service of the electronic device.

In another example, in the PDU session establishment stage at the network side, if the network device returns a specific reject reason (the reject reason may be represented by a form of a reason value) to the Modem of the electronic device, the Modem of the electronic device may enter a suppression state, and no air interface interaction is performed with the network device, which may cause continuous activation failure of the cellular data service of the electronic device.

FIG. 9 illustrates a schematic diagram of module interactions. As shown in fig. 9, a specific flow of a recovery method when activation of a cellular data service fails according to an embodiment of the present application may include:

s301, when the cellular data service fails to activate, the restoration service obtains the reason of the cellular data service failed to activate and the time of the activation failure in the phone manager.

When the cellular data service fails to activate, the Modem bottom layer feeds back an activate data call abnormality response message to the telephone manager. The restoration service can intercept in the original processing of the telephone manager, and acquire the reason of the activation failure of the cellular data service and the time of the activation failure.

Wherein the reason for the failure of the activation of the cellular data service can be identified by means of a cause value.

S302, the recovery service judges whether to start an automatic recovery scheme according to the activation failure reason and the activation failure time of the cellular data service, if yes, S303 is executed, and if not, S301 is executed continuously.

And the recovery service detects the total duration and the cause values of the continuous activation failure of the cellular data service according to the activation failure cause and the activation failure time of the cellular data service. The total duration of the cumulative activation failure of the cellular data service can be determined according to the difference between the time of the current activation failure and the time of the initial activation failure of the cellular data service.

In one implementation, if the total duration of the continuous activation failure of the cellular data service reaches a first threshold (e.g., several tens of seconds), and the values of the causes of the continuous activation failure of the cellular data service are the same, the recovery service executes an automatic recovery scheme, otherwise, the recovery service continues to monitor whether the activation of the cellular data service is successful.

In one implementation, if the total number of continuous activation failures of the cellular data service reaches a second threshold (e.g., several times), and the cause value of each activation failure of the cellular data service is the same, the restoration service performs an automatic restoration scheme, otherwise, the restoration service continues to monitor whether the cellular data service activation is successful.

In one implementation, if the total duration of the continuous activation failure of the cellular data service reaches a first threshold (e.g., several tens of seconds), the total number of continuous activation failures of the cellular data service reaches a second threshold (e.g., several times), and the cause values of the continuous activation failures of the cellular data service are the same, the restoration service executes an automatic restoration scheme, otherwise, the restoration service continues to monitor whether the activation of the cellular data service is successful.

In another implementation, if the total duration of the continuous activation failure of the cellular data service reaches a first threshold (e.g., several tens of seconds), and the duty ratio of the reason value of the secondary activation failure reaches a set ratio among the reason values of the continuous activation failure of the cellular data service, the recovery service executes an automatic recovery scheme, otherwise, the recovery service continues to monitor whether the continuous activation of the cellular data service is successful.

In another implementation, if the total number of continuous activation failures of the cellular data service reaches a second threshold (e.g., several times), and the duty ratio of the reason value of each activation failure of the cellular data service reaches a set ratio, the recovery service executes an automatic recovery scheme, otherwise, the recovery service continues to monitor whether the activation of the cellular data service is successful.

In another implementation, if the total duration of the continuous activation failure of the cellular data service reaches a first threshold (e.g., several tens of seconds), the total number of continuous activation failures of the cellular data service reaches a second threshold (e.g., several times), and among the cause values of each activation failure of the cellular data service, when the duty ratio of the cause values of the secondary activation failure reaches a set ratio, the recovery service executes an automatic recovery scheme, otherwise, the recovery service continues to monitor whether the activation of the cellular data service is successful.

In yet another implementation, if the total duration of the continuous activation failure of the cellular data service reaches a first threshold (e.g., several tens of seconds), and among the cause values of the continuous activation failure of the cellular data service, when the cause value of the secondary activation failure is the same as the cause value of the primary activation failure, the recovery service executes an automatic recovery scheme, otherwise, the recovery service continues to monitor whether the activation of the cellular data service is successful.

In yet another implementation, if the total number of continuous activation failures of the cellular data service reaches a second threshold (e.g., several times), and among the reason values of each activation failure of the cellular data service, when the reason value of the secondary activation failure is the same as the reason value of the primary activation failure, the restoration service executes an automatic restoration scheme, otherwise, the restoration service continues to monitor whether the cellular data service activation is successful.

In yet another implementation, if the total duration of the continuous activation failure of the cellular data service reaches a first threshold (e.g., several tens of seconds), the total number of continuous activation failures of the cellular data service reaches a second threshold (e.g., several times), and among the cause values of each activation failure of the cellular data service, when the cause value of the secondary activation failure is the same as the cause value of the primary activation failure, the restoration service performs an automatic restoration scheme, otherwise, the restoration service continues to monitor whether the activation of the cellular data service is successful.

As an alternative embodiment, as shown in fig. 10a, the procedure for determining whether to start the automatic recovery scheme by the recovery service according to the activation failure reason and activation failure time of the cellular data service may include:

s3021, when the cellular data service fails to be activated, the restoration service determines whether the current cause value of the cellular data service failed to be activated is a specific cause value, if not, S3022 is executed, and if yes, S3024 is executed.

In the present embodiment, the specific cause value refers to a cause value in which a corresponding restoration scheme is specified in the communication protocol. For example, the specific cause value may be "cause #33", and the corresponding recovery manner is defined in the communication protocol as turning off the SA mode of the UE (User Equipment) to enable the UE to be re-activated on LTE.

For these specific cause values, the recovery scheme provided by the embodiments of the present application need not be employed. That is, when the restoration service determines that the current cause value of the activation failure of the cellular data service is not the specific cause value, the restoration service continues to determine whether to execute the automatic restoration scheme.

S3022, the recovery service judges whether the accumulated activation failure duration is greater than a first threshold, and whether the accumulated activation failure times is greater than a second threshold, if so, S3023 is executed, and if not, S3024 is executed.

The accumulated activation failure time length refers to the total time length of the continuous activation failure of the cellular data service. The accumulated activation failure duration is the difference between the current time and the initial time of the activation failure of the cellular data service.

The cumulative number of activation failures refers to the total number of continuous activation failures of the cellular data service.

If the recovery service determines that the accumulated activation failure time is longer than the first threshold (e.g., 60 seconds) and the accumulated activation failure times are longer than the second threshold (e.g., 5 times), the recovery service continues to determine whether to execute the automatic recovery scheme.

S3023, the restoration service determines whether the current cause value of the activation failure of the cellular data service and the initial cause value are consistent, if so, S303 is executed, and if not, S3024 is executed.

And if the restoration service judges that the current cause value of the activation failure of the cellular data service is consistent with the initial cause value, executing an automatic restoration scheme to enable the cellular data service to be activated successfully.

That is, in this embodiment, if the current cause value of the cellular data service activation failure is not a specific cause value, the cumulative activation failure time of the cellular data service activation failure is longer than the first threshold (e.g., 60 seconds), the cumulative activation failure number is greater than the second threshold (e.g., 5 times), and the current cause value of the cellular data service activation failure and the initial cause value are identical, the restoration service performs the automatic restoration scheme. The execution sequence of S3021, S3022, and S3023 may be adaptively adjusted, which is not limited in this embodiment.

S3024, the restoration service determines whether the initial cause value and the initial time of the activation failure of the cellular data service are empty, if so, S3025 is executed, and if not, S3026 is executed.

S3025, the restoration service sets an initial cause value and an initial time of the cellular data service activation failure.

S3026, the recovery service updates the cumulative activation failure duration and the cumulative number of activation failures of the cellular data service activation failure.

When the current cause value of the activation failure of the cellular data service is not a specific cause value, the accumulated activation failure time of the activation failure of the cellular data service is longer than a first threshold value, the accumulated activation failure times of the activation failure of the cellular data service is longer than a second threshold value, and the current cause value of the activation failure of the cellular data service is consistent with the initial cause value, any condition is not satisfied, and the restoration service is not triggered to execute the restoration scheme provided by the embodiment of the application.

At this time, the restoration service first determines whether the initial cause value and the initial time of the activation failure of the cellular data service are set, if not, the activation failure of the cellular data service is the initial activation failure, and the cause value and the time corresponding to the activation failure are the initial cause value and the initial time of the activation failure of the cellular data service, and the accumulated activation failure frequency can be updated to 1. If the time of the activation failure is set, the cellular data service is not initially activated, so that the recovery service can update the accumulated activation failure time and the accumulated activation failure times of the activation failure of the cellular data service according to the time corresponding to the activation failure, and can record the reason value corresponding to the activation failure.

As another alternative embodiment, as shown in fig. 10b, the procedure for determining whether to start the automatic recovery scheme by the recovery service according to the activation failure reason and activation failure time of the cellular data service may include:

s3021', when the cellular data service fails to be activated, the restoration service judges whether the current cause value of the cellular data service fails to be activated is a specific cause value, if not, S3022' is executed, and if yes, S3025' is executed.

S3022', the recovery service judges whether the accumulated activation failure time is greater than a first threshold and whether the accumulated activation failure times is greater than a second threshold, if so, S3023' is executed, and if not, S3025' is executed.

S3023', the restoration service determines whether the current cause value of the activation failure of the cellular data service and the initial cause value are consistent, if so, S3024' is executed, and if not, S3025' is executed.

S3024', the restoration service judges whether the current cellular network is a non-set communications carrier network, and the set internet access application is not currently adopted, if so, S303 is executed, and if not, S3025' is executed.

In one implementation, S3024 'may be adjusted to "restore service to determine whether the current cellular network is a non-set carrier network, if so, S303 is executed, and if not, S3025'".

In another implementation, S3024 'may be adjusted to "restore service determines whether the set internet application is not currently being used, if so, S303 is executed, and if not, S3025'".

In this embodiment, considering that the recovery scheme provided by the embodiment of the present application may violate the regional communication specification in the set region, the recovery service may be triggered to execute the recovery scheme provided by the embodiment of the present application only when the current cellular network of the mobile phone is a non-set communication carrier network and/or when the current non-set internet application is not adopted.

S3025', the restoration service determines whether the initial cause value and the initial time of the activation failure of the cellular data service are empty, if so, S3026' is executed, and if not, S3027' is executed.

S3026', the restoration service sets an initial cause value and an initial time of the cellular data service activation failure.

S3027', the recovery service updates the accumulated activation failure duration and the accumulated number of activation failures of the cellular data service activation failure.

In this embodiment, if the current cause value of the cellular data service activation failure is not a specific cause value, the cumulative activation failure time of the cellular data service activation failure is greater than a first threshold (for example, 60 seconds), the cumulative activation failure number is greater than a second threshold (for example, 5 times), the current cause value of the cellular data service activation failure is consistent with the initial cause value, and the current cellular network is a non-set communication carrier network, and is not currently set to access the internet, the recovery service executes an automatic recovery scheme. The execution sequence of S3021', S3022', S3023', S3024' may be adaptively adjusted, which is not limited in this embodiment.

Where this process is not explained in detail, it is explained with reference to the process shown in fig. 10a and not described in detail herein.

It should be noted that when the cellular data service fails to activate, the mobile phone will retry according to the native mechanism of the android system to attempt to reactivate the cellular data service. The recovery scheme provided by the implementation of the application is provided on the basis that the original retry of the android system is still unable to successfully activate the cellular data service for a plurality of times, and is especially provided for the scene that the root cause of the cellular data service activation failure is unchanged.

In this way, the automatic recovery scheme provided by the embodiment of the application is not limited to the known cause value of the activation failure of the cellular data service specified by the communication protocol, but can cover the failure cause value in the full scene of the activation failure of the cellular data service, and the configuration in advance is not needed. Whether the failure cause value is specified by the communication protocol or the failure cause value is customized by the chip manufacturer, the automatic recovery scheme provided by the embodiment of the application can be triggered as long as the failure is activated for a plurality of times based on the failure cause value, so that the cellular data service of the electronic equipment can be successfully activated.

S303, the recovery service executes an automatic recovery scheme.

The embodiment of the application imitates a data surface recovery (do recovery) mechanism of android native, and automatically carries out hierarchical recovery on the control surface. Wherein after the restoration service is triggered to execute the automatic restoration scheme, starting from the first stage of automatic restoration, starting automatic restoration step by step until the cellular data of the electronic device is successfully activated.

As shown in fig. 11, the automatic restoration scheme for restoration service execution may be divided into four levels, with restoration means of the first to fourth levels being enhanced stepwise. The recovery service starts from the first level of automatic recovery, if the automatic recovery is unsuccessful (i.e., cellular data service remains active failed), the recovery hierarchy is incremented to the second level, automatic recovery continues, and so on, until the recovery is successful (i.e., cellular data service is active successfully).

The first stage automatic recovery operation is to close the SA mode of the electronic equipment, namely retrying the activation flow of the cellular data service after changing the communication system. If the current network of the electronic equipment is a 5G SA network, the service recovery can close the SA mode of the electronic equipment, so that the electronic equipment can activate the cellular data service again under the 4G LTE network. Because the processing flows of the SA network and the LTE network are separated, the method can be preferentially and quickly recovered under the LTE network, so that the cellular data service of the electronic equipment is successfully activated.

In one implementation, in the first-stage automatic recovery operation, the recovery service may further set a delay duration (delay duration) of the SA mode of the electronic device. Illustratively, the delay time of the electronic device SA mode may be several minutes or ten or more minutes, etc. After the recovery service closes the SA mode of the electronic equipment, when the closing time of the SA mode of the electronic equipment reaches the delay time, the recovery service can start the SA mode of the electronic equipment, so that the electronic equipment can reside in the 5G SA network again and activate the cellular data service again.

Aiming at the aforementioned continuous activation failure scene of the cellular data service, after the network side establishes a PDU session stage and the network equipment returns a specific rejection reason to the Modem of the electronic equipment, the Modem of the electronic equipment enters a suppression state, the recovery service executes a first-stage automatic recovery operation, and the activation flow of the cellular data service is retried, so that the cellular data service of the electronic equipment is successfully activated.

If the current network of the electronic device is not a 5G SA network, the recovery service performs a second level automatic recovery operation.

The second stage of automatic recovery operation retries the activation flow of the cellular data service after the Modem updates the data configuration (such as data profile). The recovery service triggers the Modem side to update the data configuration, and retries the activation flow of the cellular data service based on the updated data configuration. Wherein, the Modem side updates the relevant parameter stored in the data configuration for activating the cellular data service.

In the SIM card loading stage of the electronic device, when the phone manager issues a network connection request and the Modem loading communication characteristic is configured with a time sequence, the recovery service actively triggers the Modem side to update the data configuration, and retries the activation flow of the cellular data service based on the updated data configuration. In this way, aiming at the situation that the data on the Modem side is configured with false activation failure of the cellular data service, the recovery service executes the second-stage automatic recovery operation, retries the activation flow of the cellular data service, and can enable the activation of the cellular data service of the electronic equipment to be successful.

The third-stage automatic recovery operation is retrying the activation flow of the cellular data service after the Modem initialization operation.

For example, when the recovery service performs a third level of automatic recovery operation, the recovery service may trigger the Modem to perform a restart radio operation. The Modem executes the restart radio operation, which is equivalent to the flight mode of manually starting and stopping the primary electronic equipment by a user. After the Modem executes the restart radio operation, most of parameters of the Modem are updated, so that the abnormality of the Modem side can be eliminated. Thus, after the Modem performs the restart radio operation, the Modem re-registers with the access network to complete the network residence operation of the electronic device, and re-performs the activation procedure of the cellular data service.

Aiming at the scene of continuous activation failure of the cellular data service, namely 'Modem state abnormality or Modem state asynchronism with the state of the telephone manager', the recovery service executes third-level automatic recovery operation, retries the activation flow of the cellular data service, and can enable the cellular data service of the electronic equipment to be successfully activated.

Aiming at the scene of continuous activation failure of the cellular data service, that is, the network equipment exits from a specific scene and the Modem side cannot recover normally, the recovery service executes the third-stage automatic recovery operation, and retries the activation flow of the cellular data service, so that the cellular data service of the electronic equipment is activated successfully.

The fourth stage of automatic recovery operation is to retry the activation flow of the cellular data service after the Modem is restarted. And (3) relative to the third-stage automatic recovery operation, the fourth-stage automatic recovery operation reloads the card-following characteristic configuration on the basis of Modem initialization. Therefore, the fourth-stage automatic recovery operation not only updates the card following characteristic configuration, but also restarts the Modem and the RIL (the RIL restarts along with the Modem), so that the channel problems such as the initialization failure of the AT command transmission channel can be avoided, and the RIL can successfully send the AT command to the Modem.

Aiming AT the aforementioned continuous activation failure scene of the cellular data service, in the startup initialization stage of the electronic equipment, the AT command sending interface is failed to be initialized, so that the AT command can not be successfully sent, the recovery service executes the fourth-level automatic recovery operation, and the activation flow of the cellular data service is retried, so that the cellular data service of the electronic equipment can be successfully activated.

In this way, in the automatic recovery scheme provided by the embodiment of the application, the SA mode of the electronic device is not limited to be closed, and a plurality of automatic recovery means are adopted to try step by step so as to successfully activate the cellular data service of the electronic device. Aiming at the problem of failure in activating the cellular data service caused by the problem of the electronic equipment, the step-by-step automatic recovery scheme provided by the embodiment of the application can solve the problem, so that the cellular data service of the electronic equipment can be successfully activated without influencing the Internet surfing experience of the user.

It should be noted that if the restoration service performs the fourth level of automatic restoration operation, retries the activation flow of the cellular data service, and still fails to activate the cellular data service of the electronic device successfully, the electronic device automatically restores to make the cellular data service activated successfully almost impossible.

It should be noted that the restoration service performs the third-level automatic restoration operation, or performs the fourth-level automatic restoration operation, as perceived by the user. When the electronic device executes the third-level automatic recovery operation or the fourth-level automatic recovery operation, for example, the mobile phone is taken as an example, the corresponding network signal icon in the mobile phone status bar changes, for example, the network signal icon changes from a networking status to an unconnected status and then to a networking status. That is, the user may perceive that the hand is disconnected from the net.

The scheme adopts a plurality of automatic recovery means to try step by step, and the automatic recovery means is enhanced step by step to successfully activate the cellular data service of the electronic equipment, so that the problem that the self-healing means is too aggressive can be avoided, and the network disconnection perception of a user is greatly reduced.

Fig. 12 illustrates a flow of the recovery service executing an automatic recovery scheme. As shown in fig. 12, the flow may include the steps of:

S3031, the automatic recovery operation level act is automatically incremented by 1.

Wherein the automatic recovery operation level act is used for indicating the level of the recovery service for executing the automatic recovery operation. The initial value of the automatic recovery operation level act is 0.

S3032, the recovery service judges whether act is equal to 1, if yes, S3033 is executed, and if not, S3036 is executed.

S3033, judging whether the communication system of the electronic equipment is in an SA mode, if so, executing S3034, and if not, executing S3035.

S3034, the SA mode of the electronic equipment is closed, and the cellular data activation flow is retried.

When act=1, the restoration service performs a first-stage automatic restoration operation.

The resume service may also set a delay time (delay time) of the SA mode of the electronic device. After the recovery service closes the SA mode of the electronic equipment, when the closing time of the SA mode of the electronic equipment reaches the delay time, the recovery service can start the SA mode of the electronic equipment, so that the electronic equipment can reside in the 5G SA network again and activate the cellular data service again.

S3035, act is automatically increased by 1.

S3036, the recovery service judges whether act is equal to 2, if so, S3037 is executed, and if not, S3038 is executed.

S3037, the recovery service triggers the Modem to update the data configuration and retries the cellular data activation flow.

When act=2, the resume service performs a second level automatic resume operation.

S3038, the recovery service judges whether act is equal to 3, if so, S3039 is executed, and if not, S30313 is executed.

S3039, the recovery service judges whether the current resident network state is normal or not, and judges whether the first punishment duration is greater than a third threshold value or not, if so, S30310 is executed, and if not, S30312 is executed.

The first punishment duration refers to a time interval when the current time is away from the time when the last recovery service executes the third-level automatic recovery operation. Since the recovery service performs the third-stage automatic recovery operation, it is perceived by the user, so that the interval between two consecutive executions of the third-stage automatic recovery operation by the recovery service needs to be considered, and frequent executions of the Modem initialization operation are avoided.

The third threshold may be set to 4 hours, for example.

S30310, the restoration service determines whether or not the voice call is currently in progress, if so, S30310 is executed, and if not, S30311 is executed.

Considering that the recovery service performs the third-stage automatic recovery operation, the electronic device may be disconnected to affect the voice call of the user, and before the recovery service performs the third-stage automatic recovery operation, the recovery service may determine whether the electronic device is currently in voice passing. If yes, after the voice call is ended, the recovery service executes third-level automatic recovery operation. Wherein the recovery service records a time of performing the third-stage automatic recovery operation when performing the third-stage automatic recovery operation.

In one implementation, when the recovery service determines that the electronic device is currently in a voice call, the recovery service again detects whether the electronic device is currently in the voice call after a delay of a set time (e.g., 30 s) until the third-stage automatic recovery operation is performed after the voice call is detected to be ended.

S30311, the recovery service triggers Modem initialization to retry the cellular data activation flow.

When act=3, the current resident network state of the electronic equipment is normal, the first punishment time is longer than a third threshold, and the electronic equipment is not in voice communication, the recovery service executes a third-stage automatic recovery operation.

S30312, act is automatically increased by 1.

S30313, the restoration service determines whether act is equal to 4, if so, S30314 is executed, and if not, S30317 is executed.

S30314, the recovery service judges whether the current resident network state is normal or not, and judges whether the second punishment duration is greater than a fourth threshold value, if so, S30315 is executed, and if not, S30317 is executed.

The second punishment duration refers to a time interval when the current time is away from the time when the last recovery service executes the fourth-level automatic recovery operation. Since the recovery service performs the fourth-stage automatic recovery operation, it is perceivable to the user, so that an interval between two consecutive executions of the fourth-stage automatic recovery operation by the recovery service needs to be considered, and frequent executions of the Modem restart operation are avoided.

The fourth threshold may be set to be greater than the third threshold, considering that the restoration service performs the fourth level automatic restoration operation at a cost greater than the third level automatic restoration operation. The fourth threshold may be set to 6 hours, for example.

S30315, the restoration service determines whether or not the voice call is currently in progress, if so, S30315 is executed, and if not, S30316 is executed.

Considering that the recovery service performs the fourth-stage automatic recovery operation, the electronic device may be disconnected to affect the voice call of the user, and before the recovery service performs the fourth-stage automatic recovery operation, the recovery service may determine whether the electronic device is currently in voice passing. If yes, after the voice call is ended, the recovery service executes the fourth-stage automatic recovery operation. Wherein the recovery service records a time of performing the third-stage automatic recovery operation when performing the third-stage automatic recovery operation.

In one implementation, when the recovery service determines that the electronic device is currently in a voice call, the recovery service again detects whether the electronic device is currently in the voice call after a delay set time (e.g., 30 s) until the fourth-stage automatic recovery operation is performed after the voice call is detected to be ended.

S30316, the recovery service triggers the Modem to restart, and retries the cellular data activation flow.

When act=4, the current resident network state of the electronic equipment is normal, the second punishment time is longer than the fourth threshold, and the electronic equipment is not in voice communication, the recovery service executes the fourth-stage automatic recovery operation.

S30317, act resets.

act resets, meaning resetting the value of act to an initial value.

In one implementation, the resume service may also set an automatic resume FLAG. Illustratively, when the FLAG value is 1, the recovery service may perform a progressive automatic recovery operation, and when the FLAG value is 0, the recovery service may not perform a progressive automatic recovery operation.

Wherein, when the recovery service judges that the automatic recovery scheme can be started according to the activation failure reason and the activation failure time, the FLAG value is set to 1. After the restoration service performs a gradual auto-restoration operation and successfully activates the cellular data service, the FLAG value may be set to 0.

For example, in the flow shown in fig. 10a, if the restoration service determines that the current cause value of the cellular data service activation failure and the initial cause value are identical (i.e., S3023), the FLAG value may be set to 1. For another example, in the flow shown in fig. 10b, if the restoration service determines that the cellular network to be currently connected is a non-set carrier network and the set internet application is not currently employed (i.e., S3024'), the FLAG value may be set to 1.

Where the flow described in relation to fig. 12 is not explained in detail, reference is made to the foregoing, and no further explanation is provided here.

And S304, after the cellular data service is successfully activated, the recovery service reports the automatic recovery record to the cloud server, or reports the automatic recovery record to the cloud server and performs early warning.

When the recovery service executes any level of automatic recovery operation, after the cellular data service is successfully activated, the automatic recovery record can be reported to the cloud server. If the recovery service executes the high-level automatic recovery operation (for example, the third-level automatic recovery operation or the fourth-level automatic recovery operation), after the cellular data service is successfully activated, the cloud server can be pre-warned, and the relevant logs are captured and reported to the cloud server, so that the research and development personnel can conveniently analyze relevant faults and the like.

Wherein the automatically recovering records may include, but is not limited to: the type of automatic recovery operation, the level of automatic recovery operation, the cause value of the activation failure of the cellular data service, the accumulated duration of the continuous activation failure of the cellular data service, etc.

The automatic recovery record may also include a trigger reason for the recovery service to perform a progressive automatic recovery operation, etc. For example, the trigger cause may be "the current cause value of the activation failure of the cellular data service is not a specific cause value, the accumulated activation failure time period is greater than the first threshold, the accumulated activation failure number is greater than the second threshold, and the current cause value of the activation failure of the cellular data service is consistent with the initial cause value. For another example, the trigger cause may be "the current cause value of the activation failure of the cellular data service is not a specific cause value, the cumulative activation failure time period is greater than the first threshold, the cumulative activation failure number is greater than the second threshold, the current cause value of the activation failure of the cellular data service is consistent with the initial cause value, and the current cellular network to be connected is a non-setting communication carrier network, and the setting internet surfing application is not currently adopted.

The present embodiment also provides a computer storage medium having stored therein computer instructions that, when executed on an electronic device, cause the electronic device to execute the above-mentioned related method steps to implement the recovery method when the activation of the cellular data service fails in the above-mentioned embodiments.

The present embodiment also provides a computer program product which, when run on a computer, causes the computer to perform the above-mentioned related steps to implement the recovery method when the activation of the cellular data service fails in the above-mentioned embodiments.

In addition, embodiments of the present application also provide an apparatus, which may be embodied as a chip, component or module, which may include a processor and a memory coupled to each other; the memory is configured to store computer-executable instructions, and when the device is running, the processor may execute the computer-executable instructions stored in the memory, so that the chip executes the recovery method when the activation of the cellular data service fails in the above method embodiments.

The electronic device (such as a mobile phone) provided in this embodiment, the computer storage medium, the computer program product or the chip are used to execute the corresponding method provided above, so that the beneficial effects thereof can be referred to the beneficial effects in the corresponding method provided above, and will not be described herein.

It will be appreciated by those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional modules is illustrated, and in practical application, the above-described functional allocation may be performed by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to perform all or part of the functions described above.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of modules or units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another apparatus, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims

1. A method for recovering when activation of a cellular data service fails, comprising:

when the cellular data service is continuously activated for multiple times, if the reason value of the multiple times of activation failure meets the consistency condition, the activation flow of the cellular data service is retried according to the classified automatic recovery operation; the hierarchical automatic recovery operation comprises multi-stage automatic recovery operation, and the automatic recovery operation of each stage is enhanced step by step;

wherein the consistency condition is used to indicate that the root cause of the successive multiple activation failures of the cellular data service has not changed.

2. The method of claim 1, wherein the cause value of the multiple activation failures satisfies a consistency condition, comprising:

in the multiple activation failure of the cellular data service, if the cause value of the current activation failure is the same as the cause value of the initial activation failure, determining that the cause value of the multiple activation failure meets the consistency condition.

3. The method of claim 1, wherein the cause value of the multiple activation failures satisfies a consistency condition, comprising:

in the multiple activation failures of the cellular data service, if the reason values of the multiple activation failures are the same, determining that the reason values of the multiple activation failures meet the consistency condition.

4. The method of claim 1, wherein retrying the activation flow of the cellular data service based on the hierarchical automatic recovery operation comprises:

when the cellular data service is continuously activated for a plurality of times, if the accumulated time length of the plurality of times of activation failure is greater than a first threshold value and/or the accumulated time number of times of activation failure is greater than a second threshold value and/or if the cause value of the current activation failure is not a specific cause value, the activation flow of the cellular data service is retried according to the hierarchical automatic recovery operation.

5. The method of claim 1, wherein retrying the activation flow of the cellular data service based on the hierarchical automatic recovery operation comprises:

if the current cellular network of the electronic equipment is not provided with an operator network and/or the electronic equipment is not provided with a set internet surfing application, automatically recovering the operation according to the grading, and retrying the activation flow of the cellular data service.

6. The method of claim 1, wherein the cause value of the activation failure comprises a cause value specified by a communication protocol and a cause value customized by a chip vendor.

7. The method according to any one of claims 1-6, wherein retrying the activation procedure of the cellular data service according to the hierarchical automatic recovery operation comprises:

Retrying the activation flow of the cellular data service according to the second automatic recovery operation when the cellular data service cannot be successfully activated according to the first automatic recovery operation; the second automatic recovery operation is at a higher level than the first automatic recovery operation.

8. The method of claim 7, wherein the hierarchical automatic recovery operation comprises a four-stage automatic recovery operation; wherein,

the first stage of automatic recovery operation includes turning off an SA mode of the electronic device;

the second-stage automatic recovery operation comprises updating the data configuration of the Modem side;

the third-stage automatic recovery operation comprises the Modem initialization;

the fourth stage of automatic recovery operation comprises the Modem restarting.

9. The method of claim 8, wherein retrying the activation flow of cellular data traffic based on the hierarchical automatic recovery operation comprises at least one of:

when the automatic recovery level is one level, retrying the activation flow of the cellular data service according to the automatic recovery operation of the first level; the automatic recovery level is used for indicating the level of executing the automatic recovery operation;

when the automatic recovery level is the second level, retrying the activation flow of the cellular data service according to the automatic recovery operation of the second level;

When the automatic recovery level is three-level and the resident network state of the electronic equipment is normal and the first time is longer than a third threshold value, retrying the activation flow of the cellular data service according to the automatic recovery operation of the third level; the first time is a time interval between the current time and the first time, and the first time is a time when the activation flow of the cellular data service is retried according to the third-level automatic recovery operation last time;

when the automatic recovery level is four, the resident state of the electronic equipment is normal, and the second time period is longer than a fourth threshold value, retrying the activation flow of the cellular data service according to the automatic recovery operation of the fourth level; the second time is a time interval between the current time and a second time, and the second time is a time when the activation flow of the cellular data service is retried according to the fourth-stage automatic recovery operation last time.

10. The method of claim 9, wherein the fourth threshold is greater than the third threshold.

11. The method of claim 9, wherein retrying the activation flow of cellular data traffic in accordance with the third level of automatic recovery operation comprises:

When the electronic equipment is not in a call state, retrying the activation flow of the cellular data service according to the third-stage automatic recovery operation;

retrying the activation flow of the cellular data service according to the fourth-stage automatic recovery operation, including:

and when the electronic equipment is not in a call state, retrying the activation flow of the cellular data service according to the fourth-stage automatic recovery operation.

12. The method of any one of claims 1-6, further comprising:

after retrying the activation flow of the cellular data service, if the cellular data service is successfully activated, reporting the automatic recovery record to the cloud server.

13. The method of claim 12, wherein the automatically recovering the record comprises at least one of: the method comprises the steps of automatic recovery operation type, automatic recovery operation level, a cause value of the activation failure of the cellular data service, accumulated duration of continuous activation failure of the cellular data service and triggering reason of the automatic recovery operation.

14. The method as recited in claim 12, further comprising:

and when the automatic recovery operation is Modem initialization or Modem restarting, early warning is carried out on the cloud server.

15. An electronic device, comprising:

a plurality of processors; the processor comprises an application processor AP and a Modem processor Modem;

a memory;

and one or more computer programs, wherein the one or more computer programs are stored on the memory, which when executed by the one or more processors, cause the electronic device to perform the steps of:

16. The electronic device of claim 15, wherein the cause value of the activation failure comprises a cause value specified by a communication protocol and a cause value customized by a chip vendor.

17. The electronic device of claim 15, wherein the hierarchical auto-recovery operation comprises a four-level auto-recovery operation; wherein,

The first-stage automatic recovery operation includes turning off an SA mode of the electronic device;

18. The electronic device of claim 17, wherein the computer program, when executed by the one or more processors, causes the electronic device to perform at least one of:

when the automatic recovery level is the first level, the AP closes the SA mode of the electronic equipment and triggers the activation flow of retrying the cellular data service; the automatic recovery level is used for indicating the level of executing the automatic recovery operation;

when the automatic recovery level is two-level, the AP triggers the Modem to update data configuration and retries the activation flow of the cellular data service;

when the automatic recovery level is three-level and the resident network state of the electronic equipment is normal and the first time is longer than a third threshold value, the AP triggers the Modem to initialize and retries the activation flow of the cellular data service; the first time is a time interval between the current time and the first time, and the first time is a time when the activation flow of the cellular data service is retried according to the third-level automatic recovery operation last time;

When the automatic recovery level is four, the resident state of the electronic equipment is normal, and the second time period is longer than a fourth threshold value, the AP triggers the Modem to restart and retries the activation flow of the cellular data service; the second time is a time interval between the current time and a second time, and the second time is a time when the activation flow of the cellular data service is retried according to the fourth-stage automatic recovery operation last time.

19. An electronic device, comprising:

one or more processors;

a memory;

and one or more computer programs, wherein the one or more computer programs are stored on the memory, which when executed by the one or more processors, cause the electronic device to perform the recovery method of any of claims 1-14 upon failure of cellular data service activation.

20. A chip, which is characterized in that the chip comprises a processing circuit and a receiving-transmitting pin; wherein,

the receiving and transmitting pins and the processing circuit are communicated with each other through an internal connecting path;

the processing circuit performs a recovery method in the event of a failure of activation of a cellular data service according to any of claims 1-14 to control the receive pin to receive signals to control the transmit pin to transmit signals.

21. A computer readable storage medium comprising a computer program, characterized in that the computer program, when run on an electronic device, causes the electronic device to perform the recovery method of any one of claims 1-14 upon failure of activation of a cellular data service.