WO2016095188A1

WO2016095188A1 - Method and terminal for restoring network service

Info

Publication number: WO2016095188A1
Application number: PCT/CN2014/094324
Authority: WO
Inventors: 刘海波
Original assignee: 华为技术有限公司
Priority date: 2014-12-19
Filing date: 2014-12-19
Publication date: 2016-06-23
Also published as: CN105917706B; CN105917706A

Abstract

Disclosed are a method and terminal for restoring a network service, which are used for attempting to restore to a correct network service when a refusal reason value mistakenly issued is received. The method in the embodiments of the present invention comprises: after receiving a refusal reason value sent by a first network, a terminal does not set a card as invalid, and makes multiple attempts to acquire a network service of the first network; if the network service of the first network can be acquired, then the terminal successfully restores to a correct network service; if the network service of the first network cannot be acquired within a pre-set number of times of a threshold value, then it is searched whether other available networks exist; and if other available networks are searched, then network services of the other searched available networks are acquired.

Description

Method and terminal for restoring network service

Technical field

The present invention relates to the field of communications, and in particular, to a method and terminal for restoring a network service.

Background technique

In the process of mobile phone registration, location update, routing update, tracking area update, and initiating service request, the network side may issue some reason value to the mobile phone, causing the card to be invalid (SIM/USIM invalid), which may result in the mobile phone service being unavailable. The reason why the card is invalid is called the reject reason value. Under normal circumstances, the network side sends these rejection reason values in order to prevent illegal mobile phones or illegal SIM card users from accessing the network. Among them, the SIM card is an abbreviation of Subscriber Identity Module, also known as user identification card, smart card.

However, in practical applications, the applicant finds that in many scenarios, due to the network side's own problems, such a rejection reason value that causes the card to be invalid may be issued incorrectly, or the terminal user encounters a test network temporarily established by some organizations. And the trial network, when the terminal tries to access these temporary networks, it may also issue such a rejection reason value due to the irregularity of the temporary network deployment.

In this way, because the network side itself, or the temporary network network is not standardized, the value of the rejection reason sent by the error will cause the end user to no longer use the correct network service.

Summary of the invention

The embodiment of the invention provides a method and a terminal for restoring a network service, and is used to try to restore the correct network service when receiving the reject reason value sent by the error.

A first aspect of the embodiments of the present invention provides a method for restoring a network service, including:

When receiving the reject reason value sent by the first network, the card is not invalidated, and the network service of the first network is attempted according to the preset time interval;

When the number of failed network service acquisitions of the first network reaches a preset threshold, searching for other available networks;

Obtaining the network service of the searched available network when it is determined that there are other available networks;

Restricting residency on the first network when it is determined that there are no other available networks.

With reference to the first aspect of the embodiments of the present invention, in the first implementation manner of the first aspect of the embodiments of the present disclosure, before the step of attempting to acquire the network service of the first network according to the preset interval, the method further includes:

Determining whether the first network is a home public land mobile network HPLMN or a peer-to-peer home network EHPLMN;

If it is determined that the first network is an HPLMN or an EHPLMN, triggering the step of attempting to acquire a network service of the first network according to a preset interval time;

If it is determined that the first network is not an HPLMN and an EHPLMN, the first network is added to the forbidden network list, and the step of triggering the search for other available networks is triggered.

In conjunction with the first aspect of the embodiment of the present invention or the first implementation manner of the first aspect, in the second implementation manner of the first aspect of the embodiment of the present disclosure, before the step of not placing the card as invalid, the method further includes:

The received reject reason value is modified to be a first cause value, and the first cause value is a cause value added in the protocol specifications 3GPP 24.301 and 3GPP 24.008.

With reference to the first implementation manner of the first aspect of the embodiment of the present invention, in a third implementation manner of the first aspect of the embodiment of the present invention, after the step of determining that the first network is a HPLMN or an EHPLMN, the method further includes:

Modifying the received rejection reason value to #17 or #15 in the protocol specifications 3GPP 24.301 and 3GPP 24.008;

After the step of determining that the first network is not HPLMN and EHPLMN, the method further includes:

The received reject reason value is modified to #13 or #14 in the protocol specifications 3GPP 24.301 and 3GPP 24.008.

A second aspect of the embodiments of the present invention provides a terminal, including:

The first obtaining module is configured to: when the rejection reason value sent by the first network is received, not to invalidate the card, and try to acquire the network service of the first network according to the preset time interval;

a search module, configured to search whether there are other available networks when the number of times the first acquisition module acquires the network service failure of the first network reaches a preset threshold;

a second obtaining module, configured to: when the searching module determines that other available networks exist, obtain a network service of the searched available network;

a resident module, configured to: when the search module determines that there are no other available networks Restricted residency on a network.

With reference to the second aspect of the embodiments of the present invention, in a first implementation manner of the second aspect of the embodiments, the terminal further includes:

a determining module, configured to determine, when receiving the reject reason value sent by the first network, whether the first network is a home public land mobile network HPLMN or a peer-to-peer home network EHPLMN, when determining that the first network is an HPLMN or The EHPLMN triggers the first obtaining module to trigger the search module by adding the first network to the forbidden network list when it is determined that the first network is not the HPLMN and the EHPLMN.

With reference to the second aspect of the embodiment of the present invention or the first implementation manner of the second aspect, in the second implementation manner of the second aspect of the embodiment, the terminal further includes:

The first modification module is configured to: when receiving the reject reason value sent by the first network, modify the received reject cause value as a first cause value, where the first cause value is in the protocol specifications 3GPP 24.301 and 3GPP 24.008 Increased cause value.

With reference to the first implementation manner of the second aspect of the embodiment of the present invention, in a third implementation manner of the second aspect of the embodiment, the terminal further includes:

a second modification module, when determining that the first network is HPLMN or EHPLMN, modifying the received reject reason value to #17 or #15 in the protocol specifications 3GPP 24.301 and 3GPP 24.008;

And a third modification module, configured to modify the received reject reason value to #13 or #14 in the protocol specifications 3GPP 24.301 and 3GPP 24.008 when determining that the first network is not HPLMN and EHPLMN.

A third aspect of the embodiments of the present invention provides a terminal, including:

Input device, output device, processor and memory;

The processor is configured to perform the following steps by invoking an operation instruction stored by the memory:

With reference to the third aspect of the embodiments of the present invention, in a first implementation manner of the third aspect of the embodiments, the processor is further configured to perform the following steps:

With reference to the third aspect of the embodiment of the present invention or the first implementation manner of the third aspect, in the second implementation manner of the third aspect of the embodiment, the processor is further configured to perform the following steps:

When the reject reason value sent by the first network is received, the received reject cause value is modified to be a first cause value, and the first cause value is a cause value added in the protocol specifications 3GPP 24.301 and 3GPP 24.008.

With reference to the first implementation manner of the third aspect of the embodiments of the present invention, in a third implementation manner of the third aspect of the embodiments, the processor is further configured to perform the following steps:

When it is determined that the first network is HPLMN or EHPLMN, the received reject reason value is modified to #17 or #15 in the protocol specifications 3GPP 24.301 and 3GPP 24.008;

When it is determined that the first network is not HPLMN and EHPLMN, the received reject reason value is modified to #13 or #14 in the protocol specifications 3GPP 24.301 and 3GPP 24.008.

It can be seen from the above technical solution that the embodiment of the present invention has the following advantages: in the embodiment of the present invention, after receiving the reject reason value sent by the first network, the terminal does not set the card to be invalid, and attempts to acquire the first network multiple times. If the network service can obtain the network service of the first network, the terminal successfully recovers to the correct network service. If the network service of the first network is not obtained within the preset threshold number, the search is performed. There are other available networks. If other available networks are searched, the network services of other available networks that are searched for are obtained, and after obtaining the network services of the available networks, the correct network services are successfully restored, and the network service is avoided. Due to the network side's own problems, or the temporary network deployment is not standardized, the value of the rejection is incorrectly issued, and the terminal user can no longer use the correct network service.

DRAWINGS

FIG. 1 is a schematic flowchart of a method for restoring a network service according to an embodiment of the present invention;

2 is another schematic flowchart of a method for restoring a network service according to an embodiment of the present invention;

3 is a schematic structural diagram of a terminal in an embodiment of the present invention;

4 is a schematic structural diagram of another terminal in an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another terminal in an embodiment of the present invention; FIG.

6 is a schematic structural diagram of another terminal in an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of another terminal in an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention.

The term "rejection cause value" indicates the value of the cause of invalidation of the card issued by the network side to the mobile phone. In different protocols, the number of such cause values may be different, for example, #3, #6 specified in 3GPP 24.301. #7, #8, and #2, #3, #6, #7, #8 specified in 3GPP 24.008 are reject reason values.

The term "restricted residency" means that the network service resides on one network but cannot fully use the network, and only some emergency calls can be made.

Referring to FIG. 1, an embodiment of a method for restoring a network service in an embodiment of the present invention includes:

101. When receiving the reject reason value sent by the first network, the card is not invalidated, and the network service of the first network is attempted according to the preset time interval.

The terminal does not put the card in the terminal (SIM/USIM) when receiving the reject reason value sent by the first network in the process of registering, updating the location, updating the route, updating the tracking area, and initiating the service request. Set to invalid, try to obtain the network service of the first network according to the preset time interval.

It can be understood that the preset time interval can be preset, and the network service representation of the first network is attempted to be obtained according to the preset time interval. If the network service of the first network cannot be successfully obtained, the preset interval is separated every time. Time, try again to get the network service of the first network.

It can be understood that if the network service of the first network is successfully obtained, the terminal successfully recovers to the correct network service.

102. When the number of failures of obtaining the network service of the first network reaches a preset threshold, searching for whether there are other available networks;

The terminal attempts to obtain the network service of the first network according to the preset time interval. If the network service fails, the terminal reacquires according to the preset time interval. When the number of failed network service failures of the first network reaches a preset threshold, the search exists. Other available networks.

103. Obtain a network service of the searched available network when it is determined that there are other available networks;

After the terminal searches for other available networks, when it is determined that there are other available networks, the network service of the searched available network is obtained, and after obtaining the network service of the available network, the terminal is restored to the correct network service.

104. When it is determined that there are no other available networks, the camping is restricted on the first network.

When it is determined that there are no other available networks, or when the network service of the searchable available network is not available, the terminal restricts the presence on the first network.

In the embodiment of the present invention, after receiving the reject reason value sent by the first network, the terminal does not set the card to be invalid, and attempts to acquire the network service of the first network multiple times, and if the network service of the first network is obtained, The terminal successfully recovers to the correct network service. If the network service of the first network is not obtained within the preset threshold number, the search may find other available networks. If other available networks are searched, the terminal obtains After searching for the available network services of the available network, the network service of the available network is successfully restored to the correct network service, thereby avoiding the problem of the network side itself or the irregularity of the temporary network deployment. The reason for rejecting the reason for the error is issued, and the end user is no longer able to use the correct network service.

In an actual application, the terminal may first determine whether the first network is an HPLMN or an EHPLMN, and then perform subsequent processing according to the determination result. The method for restoring the network service in the embodiment of the present invention is specifically described below. Referring to FIG. 2, the present invention is implemented. Another embodiment of a method for restoring a network service in an example includes:

If the first network is an HPLMN or an EHPLMN, the step 202 is triggered. If it is determined that the first network is not HPLMN and EHPLMN, the first network is added to the forbidden network list, and step 203 is triggered;

The terminal does not put the card in the terminal (SIM/USIM) when receiving the reject reason value sent by the first network in the process of registering, updating the location, updating the route, updating the tracking area, and initiating the service request. Set to invalid, first determine whether the first network is HPLMN or EHPLMN;

If it is determined that the first network is HPLMN or EHPLMN, then step 202 is triggered;

If it is determined that the first network is not HPLMN and EHPLMN, the first network is added to the forbidden network list, and step 203 is triggered. Among them, not HPLMN and EHPLMN indicate neither HPLMN nor EHPLMN.

The HPLMN is short for Home PLMN, indicating the home PLMN, EHPLMN is short for Equivalent Home PLMN, indicating peer-to-peer PLMN; and PLMN is short for PublicLand Mobile Network, indicating public land mobile network.

For a network that has joined the forbidden network list, the terminal will not attempt to obtain the network service of the network before restarting.

Determining whether the first network is an HPLMN or an EHPLMN, the purpose of which is to determine whether the first network is a home network of the card in the terminal, for example, if the carrier of the card in the terminal is Unicom, and the first network is a Unicom network The first network is the HPLMN or EHPLMN of the card. If the first network is a mobile network, the first network is not the HPLMN or EHPLMN of the card.

It can be understood that, after the terminal receives the reject reason value sent by the first network, the operation may be performed according to the newly added cause value in the protocol. Specifically, when the terminal receives the rejection sent by the first network, The cause value may be that the terminal may modify the received reject reason value as a first cause value, where the first cause value is a value added in the protocol specifications 3GPP 24.301 and 3GPP 24.008, and the specific step of the terminal performing the first cause value That is, in step 201 to step 205, the number of the first cause value may be set to any number that is not in the current protocol. For example, the first cause value may be set to #112, and after the terminal receives the reject reason value, That is, the reject reason value is modified to #112, and the subsequent operations are performed according to the behavior corresponding to #112 in the protocol.

It can be modified in addition to adding new cause values and corresponding execution steps in the protocol. The reject reason value is an existing cause value in the protocol specification, and the subsequent operation is performed according to the modified cause value. For example, if the first network is determined to be HPLMN or EHPLMN, the reject cause value is modified as a protocol specification. 3GPP 24.301 and #17 or #15 in 3GPP 24.008, the terminal will trigger the execution of step 202 according to the behavior specified in the protocol specification 3GPP 24.301 and 3GPP 24.008 in #17 or #15; if it is determined that the first network is not HPLMN And EHPLMN, if the rejection reason value is modified as #13 or #14 in the protocol specifications 3GPP 24.301 and 3GPP 24.008, the terminal will follow the behavior specified in #13 or #14 in the protocol specifications 3GPP 24.301 and 3GPP 24.008. The first network joins the barred network list and triggers step 203.

202. Try to acquire a network service of the first network according to a preset interval.

When the terminal determines that the first network is an HPLMN or an EHPLMN, the terminal attempts to acquire the network service of the first network according to a preset interval time;

If successful, the terminal successfully recovers to the correct network service;

If the failure occurs, the re-acquisition is performed according to the preset time interval. When the number of failed network service acquisitions of the first network reaches a preset threshold, the subsequent steps are triggered.

203. Search for whether there are other available networks;

When the terminal acquires the network service failure number of the first network reaches a preset threshold, or determines that the first network is not the HPLMN and the EHPLMN and joins the first network to the forbidden network list, the terminal searches for whether there are other available networks.

204. Obtain a network service of the searched available network when it is determined that there are other available networks;

205. When it is determined that there are no other available networks, the camping is restricted on the first network.

In the embodiment of the present invention, the terminal may be based on whether the first network is HPLMN or EHPLMN. Perform different operations so that you can recover to the correct network service more quickly according to the actual situation. And the reason value including the above steps may be added in the protocol specification, and the rejection reason value is modified to the increased cause value, which does not violate the provisions of the existing protocol, and also ensures that the terminal does not have problems due to the network side itself, or The temporary network network is not standardized, and the reason for rejecting the error is incorrectly issued, and the terminal user cannot use the correct network service again.

For ease of understanding, the method for restoring network services in the embodiment of the present invention is specifically described in a specific application scenario:

The terminal resides in the first network, and the terminal sends a service request to the first network, and the first network error is sent, and the reject reason value is sent to the terminal;

After receiving the reject reason value, the terminal modifies the reject cause value as a first cause value, for example, #112, where the first cause value is a cause value of the newly added protocols 3GPP 24.301 and 3GPP 24.008, according to the specification corresponding to the #112, The terminal performs the following operations:

The terminal determines whether the first network is a HPLMN or an EHPLMN of the card in the terminal;

For example, the operator of the card in the terminal is Unicom, the first network is a Unicom network, the terminal determines that the first network is HPLMN or EHPLMN, and the terminal starts the timer T1 (preset time interval), and limits the camping in the T1 time, T1 After the timeout expires, the network service of the first network is re-acquired on the first network. If the failure occurs, the T1 is reset and the attempt is repeated; if the failure limit number N (preset threshold) is obtained, the network of the first network is acquired. If the service fails, the terminal successfully obtains the correct network service; if the number of failures reaches the upper limit, the network service of the first network has not been successfully obtained, and the network service is not retried, and the search for other available networks is performed. Obtaining the network service of the second network to the available second network; if the other available network is not searched, the terminal restricts the resident on the first network;

For example, the operator of the card in the terminal is Unicom, the first network is a mobile network, and the terminal determines that the first network is not HPLMN and EHPLMN, and the terminal joins the first network to the network forbidden list, and no longer attempts to obtain the first before the terminal restarts. Network service of a network, such as initiating registration retry, location update/routing update/tracking area update retry, service request retry, etc.; and immediately searching for the existence of other available networks, if searching for available second network, obtaining The network service of the second network; if no other available networks are searched, the terminal restricts the presence on the first network.

The following describes the terminal in the embodiment of the present invention. Referring to FIG. 3, an embodiment of the terminal in the embodiment of the present invention includes:

The first obtaining module 301 is configured to: when the rejection reason value sent by the first network is received, not to invalidate the card, and try to acquire the network service of the first network according to the preset time interval;

The searching module 302 is configured to search whether there are other available networks when the number of times that the first network acquisition failure of the first network fails to reach the preset threshold.

The second obtaining module 303 is configured to: when the searching module 302 determines that there are other available networks, obtain the searched network service of the available network;

The resident module 304 is configured to restrict the camping on the first network when the search module 302 determines that there are no other available networks.

In the embodiment of the present invention, after the terminal receives the reject reason value sent by the first network, the first acquiring module 301 does not invalidate the card, and attempts to acquire the network service of the first network multiple times, if the first network can be obtained. The network service, the terminal successfully recovered to the correct network service, if the network service of the first network is not obtained within the preset threshold number, the search module 302 searches for whether there are other available networks, if the search After the other available networks, the second obtaining module 303 obtains the network services of the other available networks that are searched, and after obtaining the network services of the available network, the network service is successfully restored to the correct network service, thereby avoiding the network side. The problem of its own, or the irregular network network is not standardized, the value of the rejection reason issued by the error, and the end user can no longer use the correct network service.

In a practical application, the terminal may first determine whether the first network is an HPLMN or an EHPLMN, and then perform subsequent processing according to the determination result. The following describes the terminal in the embodiment of the present invention. Referring to FIG. 4, the terminal in the embodiment of the present invention is used. In another embodiment, the foregoing terminal further includes:

The determining module 401 is configured to determine, when receiving the reject reason value sent by the first network, whether the first network is a home public land mobile network HPLMN or a peer-to-peer home network EHPLMN, when determining that the first network is an HPLMN Or the EHPLMN, triggering the first obtaining module 301, when it is determined that the first network is not the HPLMN and the EHPLMN, adding the first network to the forbidden network list, triggering the search module 302.

In the embodiment of the present invention, the determining module 401 can trigger different modules according to whether the first network is HPLMN or EHPLMN, so that the correct network service can be restored to the actual situation more quickly.

In an actual application, after the terminal receives the reject reason value sent by the first network, the operation may be performed. It is executed according to the newly added reason value in the protocol, or it can be executed according to other reason values in the existing protocol:

Optionally, referring to FIG. 5, as another embodiment of the terminal in the embodiment of the present invention, the foregoing terminal further includes:

The first modification module 501 is configured to: when receiving the reject reason value sent by the first network, modify the received reject cause value as a first cause value, where the first cause value is in the protocol specifications 3GPP 24.301 and 3GPP 24.008 The reason value added in .

In this embodiment, a new cause value is added to the protocol specification, and the execution operation corresponding to the cause value is customized. The first modification module 501 modifies the rejection cause value to the added new cause value, and does not violate the existing protocol. The provision also ensures that the terminal will not be able to use the correct network service because the network side itself does not have the problem of the network side, or the temporary network network is not standardized, and the reason for the rejection is incorrectly issued.

Optionally, referring to FIG. 6, as another embodiment of the terminal in the embodiment of the present invention, the terminal shown in FIG. 3 or FIG. 4 may further include:

The second modification module 601 is configured to, when determining that the first network is an HPLMN or an EHPLMN, modify the received reject reason value to #17 or #15 in the protocol specifications 3GPP 24.301 and 3GPP 24.008;

The third modification module 602 is configured to modify the received reject reason value to #13 or #14 in the protocol specifications 3GPP 24.301 and 3GPP 24.008 when determining that the first network is not HPLMN and EHPLMN.

In the embodiment of the present invention, the second modification module 601 and the third modification module 602 modify the rejection reason value to the existing cause value in the protocol specification according to different situations, and do not need to additionally increase the cause value and the corresponding behavior, that is, Recovery of network services can be achieved.

In order to facilitate the understanding of the foregoing embodiments, the following describes the interaction process of each module of the foregoing terminal in a specific application scenario:

After receiving the reject reason value, the first modification module 501 modifies the reject cause value as a first cause value, for example, #112, where the first cause value is a new add-in protocol 3GPP 24.301 and 3GPP 24.008. The reason value, according to the specification corresponding to #112, the terminal performs the following operations:

The determining module 401 determines whether the first network is a HPLMN or an EHPLMN of the card in the terminal;

For example, the operator of the card in the terminal is Unicom, the first network is a Unicom network, the determining module 401 determines that the first network is HPLMN or EHPLMN, and the terminal starts the timer T1 (preset time interval), and limits the resident in the T1 time. After the T1 times out, the first obtaining module 301 re-acquires the network service of the first network on the first network. If it fails, resets the T1, and the first acquiring module 301 attempts again; if the failure limit number N (preset) If the first acquisition module 301 obtains the network service of the first network, the terminal successfully obtains the correct network service; if the number of failures reaches the upper limit, the first acquisition module 301 has not successfully obtained the first If the network service of the network is not retried, the search module 302 searches for other available networks. If the second network is available, the second obtaining module 303 obtains the network service of the second network; For other available networks, the resident module 304 limits residency on the first network;

For example, the operator of the card in the terminal is Unicom, the first network is a mobile network, and the determining module 401 determines that the first network is not the HPLMN and the EHPLMN, and adds the first network to the network forbidden list, and the first obtaining module 301 before the terminal restarts. No longer try to obtain network services of the first network, such as initiate registration retry, location update/route update/tracking area update retry, service request retry, etc.; search module 302 immediately searches for the existence of other available networks, if search To the available second network, the second obtaining module 303 acquires the network service of the second network; if no other available networks are searched, the resident module 304 limits the resident on the first network.

Referring to FIG. 7, another embodiment of the terminal in the embodiment of the present invention includes:

The input device 701, the output device 702, the processor 703, and the memory 704 (wherein the number of processors 703 in the terminal 700 may be one or more, and one processor 703 is taken as an example in FIG. 7). In some embodiments of the present invention, the input device 701, the output device 702, the processor 703, and the memory 704 may be connected by a bus or other means, wherein the bus connection is taken as an example in FIG.

The processor 703 is configured to perform the following steps by calling an operation instruction stored in the memory 704:

Whether the search is saved when the number of failed network service acquisitions of the first network reaches a preset threshold In other available networks;

Restricting residency on the first network when it is determined that there are no other available networks;

In some embodiments of the present invention, the processor 703 is further configured to perform the following steps:

If it is determined that the first network is not an HPLMN and an EHPLMN, adding the first network to a forbidden network list, triggering the search whether there are other available networks;

When the reject reason value sent by the first network is received, the received reject reason value is modified as a first cause value, and the first cause value is a cause value added in the protocol specifications 3GPP 24.301 and 3GPP 24.008;

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the embodiments are modified, or the equivalents of the technical features are replaced by the equivalents of the technical solutions of the embodiments of the present invention.

Claims

A method for restoring a network service, comprising:

When receiving the reject reason value sent by the first network, the card is not invalidated, and the network service of the first network is attempted according to the preset time interval;

When the number of failed network service acquisitions of the first network reaches a preset threshold, searching for other available networks;

Obtaining the network service of the searched available network when it is determined that there are other available networks;

Restricting residency on the first network when it is determined that there are no other available networks.
The method according to claim 1, wherein the step of attempting to acquire the network service of the first network according to the preset interval time further comprises:

Determining whether the first network is a home public land mobile network HPLMN or a peer-to-peer home network EHPLMN;

If it is determined that the first network is an HPLMN or an EHPLMN, triggering the step of attempting to acquire a network service of the first network according to a preset interval time;

If it is determined that the first network is not an HPLMN and an EHPLMN, the first network is added to the forbidden network list, and the step of triggering the search for other available networks is triggered.
The method according to claim 1 or 2, wherein the step of not placing the card as invalid further comprises:

The received reject reason value is modified to be a first cause value, and the first cause value is a cause value added in the protocol specifications 3GPP 24.301 and 3GPP 24.008.
The method according to claim 2, wherein the step of determining that the first network is a HPLMN or an EHPLMN further comprises:

Modifying the received rejection reason value to #17 or #15 in the protocol specifications 3GPP 24.301 and 3GPP 24.008;

After the step of determining that the first network is not HPLMN and EHPLMN, the method further includes:

The received reject reason value is modified to #13 or #14 in the protocol specifications 3GPP 24.301 and 3GPP 24.008.
A terminal, comprising:

The first obtaining module is configured to: when receiving the reject reason value sent by the first network, do not set the card as Invalid, try to obtain the network service of the first network according to the preset time interval;

a search module, configured to search whether there are other available networks when the number of times the first acquisition module acquires the network service failure of the first network reaches a preset threshold;

a second obtaining module, configured to: when the searching module determines that other available networks exist, obtain a network service of the searched available network;

a resident module for limiting residency on the first network when the search module determines that there are no other available networks.
The terminal according to claim 5, wherein the terminal further comprises:

a determining module, configured to determine, when receiving the reject reason value sent by the first network, whether the first network is a home public land mobile network HPLMN or a peer-to-peer home network EHPLMN, when determining that the first network is an HPLMN or The EHPLMN triggers the first obtaining module to trigger the search module by adding the first network to the forbidden network list when it is determined that the first network is not the HPLMN and the EHPLMN.
The terminal according to claim 5 or 6, wherein the terminal further comprises:

The first modification module is configured to: when receiving the reject reason value sent by the first network, modify the received reject cause value as a first cause value, where the first cause value is in the protocol specifications 3GPP 24.301 and 3GPP 24.008 Increased cause value.
The terminal according to claim 6, wherein the terminal further comprises:

a second modification module, when determining that the first network is HPLMN or EHPLMN, modifying the received reject reason value to #17 or #15 in the protocol specifications 3GPP 24.301 and 3GPP 24.008;

And a third modification module, configured to modify the received reject reason value to #13 or #14 in the protocol specifications 3GPP 24.301 and 3GPP 24.008 when determining that the first network is not HPLMN and EHPLMN.
A terminal, comprising:

Input device, output device, processor and memory;

The processor is configured to perform the following steps by invoking an operation instruction stored by the memory:

When receiving the reject reason value sent by the first network, the card is not invalidated, and the network service of the first network is attempted according to the preset time interval;

When the number of failed network service acquisitions of the first network reaches a preset threshold, searching for other available networks;

Obtaining the network service of the searched available network when it is determined that there are other available networks;

Restricting residency on the first network when it is determined that there are no other available networks.
The terminal according to claim 9, wherein the processor is further configured to perform the following steps:

Determining whether the first network is a home public land mobile network HPLMN or a peer-to-peer home network EHPLMN;

If it is determined that the first network is an HPLMN or an EHPLMN, triggering the step of attempting to acquire a network service of the first network according to a preset interval time;

If it is determined that the first network is not an HPLMN and an EHPLMN, the first network is added to the forbidden network list, and the step of triggering the search for other available networks is triggered.
The method according to claim 9 or 10, wherein the processor is further configured to perform the following steps:

When the reject reason value sent by the first network is received, the received reject cause value is modified to be a first cause value, and the first cause value is a cause value added in the protocol specifications 3GPP 24.301 and 3GPP 24.008.
The method according to claim 9, wherein the processor is further configured to perform the following steps:

When it is determined that the first network is HPLMN or EHPLMN, the received reject reason value is modified to #17 or #15 in the protocol specifications 3GPP 24.301 and 3GPP 24.008;

When it is determined that the first network is not HPLMN and EHPLMN, the received reject reason value is modified to #13 or #14 in the protocol specifications 3GPP 24.301 and 3GPP 24.008.