CN115209451A - Network selection method, related equipment and readable storage medium - Google Patents

Abstract

The application discloses a network selection method, related equipment and a readable storage medium, and belongs to the technical field of communication. The network selection method comprises the following steps: the terminal executes a first operation under the condition that a first condition is met; wherein the first condition is satisfied by including at least one of: the terminal acquires first information related to disaster conditions; the position of the terminal changes; the first operation comprises at least one of: a first sub-operation associated with a network selection mode; a second sub-operation associated with the network.

Description

Network selection method, related equipment and readable storage medium

technical field

The present application belongs to the field of communication technologies, and in particular relates to a network selection method, related equipment and a readable storage medium.

Background technique

In the prior art, when a disaster (Disaster Condition, DC) occurs in a network, for example, due to fire, earthquake, tsunami, etc., normal services cannot be provided for terminals in the network, the reliability of the terminals in obtaining services will be low.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a network selection method, related equipment, and readable storage medium, which can solve the problem in the prior art that the network cannot provide services for the terminals in the network, resulting in low reliability for the terminals to obtain services.

In a first aspect, a method for selecting a network is provided, the method comprising:

The terminal performs the first operation when the first condition is satisfied;

Wherein, the first condition satisfies at least one of the following:

The terminal acquires first information related to the disaster situation;

the location of the terminal changes;

The first operation includes at least one of the following:

The first sub-operation related to the network selection mode;

The second sub-operation related to the network.

In a second aspect, a network selection device is provided, and the network selection device includes:

an execution module, configured to execute the first operation when the first condition is satisfied;

Wherein, the first condition satisfies at least one of the following:

The terminal acquires first information related to the disaster situation;

the location of the terminal changes;

The first operation includes at least one of the following:

The first sub-operation related to the network selection mode;

The second sub-operation related to the network.

In a third aspect, a terminal is provided, the terminal includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor The steps of implementing the method as described in the first aspect.

In a fourth aspect, a terminal is provided, including a processor and a communication interface, wherein the processor is used for:

The terminal performs the first operation when the first condition is satisfied;

Wherein, the first condition satisfies at least one of the following:

The terminal acquires first information related to the disaster situation;

the location of the terminal changes;

The first operation includes at least one of the following:

The first sub-operation related to the network selection mode;

The second sub-operation related to the network.

In a fifth aspect, a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented.

In a sixth aspect, a chip is provided, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the method according to the first aspect .

In a seventh aspect, a computer program/program product is provided, the computer program/program product is stored in a non-volatile storage medium, the program/program product is executed by at least one processor to implement the first aspect the method described.

In this embodiment of the present application, when the terminal acquires the first information related to the DC and/or the location changes, the terminal may execute the first sub-operation related to the network selection mode and/or the second sub-operation related to the network operate. In this way, the probability that the terminal obtains the service can be improved, thereby improving the reliability of the service obtained by the terminal.

Description of drawings

FIG. 1 is a schematic diagram of a wireless communication system provided by an embodiment of the present application;

Fig. 2 is one of the flow charts of the network selection method provided by the embodiment of the present application;

3 is the second schematic diagram of the network selection method provided by the embodiment of the present application;

Fig. 4 is the third flow chart of the method for network selection provided by the embodiment of the present application;

Fig. 5 is the fourth flow chart of the method for network selection provided by the embodiment of the present application;

6 is a structural diagram of a network selection device provided by an embodiment of the present application;

FIG. 7 is one of the structural diagrams of a terminal provided by an embodiment of the present application;

FIG. 8 is a second structural diagram of a terminal provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of this application.

The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first", "second" distinguishes Usually it is a class, and the number of objects is not limited. For example, the first object may be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the associated objects are in an "or" relationship.

It is worth noting that the technologies described in the embodiments of this application are not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code division Multiple Access (Code Division Multiple Access, CDMA), Time Division Multiple Access (Time Division Multiple Access, TDMA), Frequency Division Multiple Access (Frequency Division Multiple Access, FDMA), Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA) , Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most of the description below, but the techniques are also applicable to applications other than NR system applications, such as 6th generation (6th ^generation ) Generation, 6G) communication system.

FIG. 1 is a schematic diagram of a wireless communication system provided by an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12 . The terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), PDA, Netbook, Ultra-mobile personal computer (UMPC), Mobile Internet Device (MID), Wearable Device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: smart watches, bracelets, headphones, glasses, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . The network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Transmission Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. The base station in the NR system is taken as an example, but the specific type of the base station is not limited.

For the convenience of understanding, some contents involved in the embodiments of the present application are described below:

1. Network selection mode.

In this embodiment of the present application, the network selection mode may include at least one of the following types:

Automatic mode, also known as automatic network selection mode. This mode utilizes a list of PLMN/access technology combinations in priority order. The highest priority PLMN/access technology combination which is available and allowable is selected.

Manual mode (Manual mode), also known as manual network selection mode. A mobile user terminal (MobileStation, MS) indicates to the user which PLMNs are available (Here the MS indicates to the user which PLMNs are available). Only when the user makes a manual selection does the MS try to obtain normal service on the VPLMN .

Second, the network.

In this embodiment of the present application, the network may include at least one of the following: a public land mobile network (PublicLand Mobile Network, PLMN); an independent non-public network (Stand-alone Non-Public Network, SNPN). The home network may include at least one of the following: a local home network (Home PLMN); an equivalent home network (Equivalent Home PLMN, EHPLMN). The non-home network may include at least one of the following: a visited public land mobile network (Visited PLMN, VPLMN); a user controlled public land mobile network (User Controlled PLMN, UPLMN); an operator controlled PLMN (Operator Controlled PLMN, OPLMN) ; specified network, etc.

Hereinafter, the embodiments of the present application will be described in detail through some embodiments and application scenarios thereof with reference to the accompanying drawings.

Referring to FIG. 2 , FIG. 2 is one of the flowcharts of the network selection method provided by the embodiment of the present application. The network selection method in FIG. 2 may be performed by a terminal. As shown in Figure 2, the network selection method may include the following steps:

Step 201: The terminal performs a first operation when the first condition is satisfied.

In the embodiment of the present application, the first condition may be satisfied, but is not limited to include at least one of the following:

1) The terminal obtains the first information related to the disaster situation;

2) The location of the terminal changes.

In 1), the first information is related to the disaster situation, and may include at least one of the following: the relationship between the disaster situation and the object, such as the object to which the disaster situation is applicable or not, etc.; the relationship between the object and the disaster roaming service Relationships, such as who can or cannot provide disaster roaming services, etc.

During specific implementation, the terminal may acquire the first information actively or passively. Optionally, the acquisition method of the first information may include at least one of the following: determine (determine); find (find); be notified (be notified or be informed). This is not limited.

In 2), the change of the position of the terminal may be represented as: the object where the terminal is located changes.

Optionally, the above object may include at least one of the following: a network; a cell (cell); a tracking area (Tracking Area, TA); and a geographic location.

It should be noted that, when the first condition is satisfied, the disaster situation of the network may or may not change. That is to say, in this embodiment of the present application, regardless of whether the disaster situation of the network changes, the terminal can perform the first operation as long as it obtains that the first condition is satisfied.

In the implementation of the present application, the purpose of performing the first operation by the terminal is to improve the probability that the terminal can obtain services, such as normal services or emergency services, so as to improve the reliability of the terminal obtaining services. When specifically implemented, the first operation may, but is not limited to, include at least one of the following:

a) the first sub-operation related to the network selection mode;

b) A second sub-operation related to the network.

In a), the first sub-operation is related to the network selection mode, and the first sub-operation can be an operation that directly changes the network selection mode of the terminal, such as automatically leaving the current network selection mode or automatically entering a new network selection mode etc.; it can also be an operation for determining whether to change the network mode of the terminal, such as determining the current network selection mode of the terminal or determining the network selection mode expected by the terminal, etc., but not limited to this.

In b), the second sub-operation is related to the network, and the second sub-operation may be an operation for directly changing the network where the terminal is located or the selected network; it may also be an operation for determining whether to change the network where the terminal is located or select a network network operation, but not limited to this.

In the network selection method of the present application, when the terminal acquires the first information related to the DC and/or the location changes, the terminal can perform the first sub-operation related to the network selection mode and/or the second sub-operation related to the network. operate. In this way, the probability that the terminal obtains the service can be improved, thereby improving the reliability of the service obtained by the terminal.

The content involved in the satisfaction of the first condition will be further described below.

1. For the first information in the aforementioned 1).

Optionally, the first information indicates at least one of the following:

i) the disaster situation is applicable to the first object;

ii) changes to the objects to which the disaster situation applies;

iii) the disaster situation does not apply to the second object;

iv) The third object can provide disaster roaming services;

ⅴ) The fourth object cannot provide disaster roaming service;

Wherein, the object includes at least one of the following: network; tracking area; cell; geographic location.

In i), the first information indicates that the disaster situation is applicable to one or some objects, that is, it indicates that a disaster situation occurs to one or some objects and cannot provide services. The first object may include one or more (at least two) objects.

In ii), the first information indicates that the object to which the disaster situation is applicable has changed, that is, it indicates that the scope of the disaster situation has changed. In this case, further, the first indication information may further indicate the object to which the changed disaster situation is applicable.

In iii), the first information indicates that the disaster situation does not apply to a certain object or objects. The first object may include one or more objects. Optionally, the second object may include at least one of the following: an object to which the disaster situation once applied; and an object to which the disaster situation did not apply.

For an object to which the disaster situation once applied, the first information may indicate that the disaster situation no longer applies to the object, ie the disaster situation ceases or disappears at the object. In this case, further, the first information may further indicate the time when the disaster situation no longer applies to the object, that is, the time when the disaster situation stops or disappears from the object.

For the object to which the disaster situation did not apply, the first information may indicate that the disaster situation did not apply to the object, ie the disaster situation did not occur for the object. For example, assuming that the location of the terminal remains unchanged, the terminal detects object 1 after the signal strength of object 1 becomes stronger, and obtains that the disaster situation does not apply to object 1, then the terminal can perform the first operation to automatically change the network selected by the terminal for object 1.

In iv), the first information indicates one or some objects that can provide disaster roaming services. The third object may include one or more objects. The third object can provide normal service and emergency service for the terminal in the object in which the disaster situation occurs.

In v), the first information indicates one or some objects that cannot provide disaster roaming service. The fourth object cannot provide normal services for the terminals in the object in which the disaster situation occurs, but can provide emergency services for the terminals in the object in which the disaster situation occurs. The fourth object may include one or more objects. Optionally, the fourth object includes at least one of the following: an object that can once provide disaster roaming service; an object that cannot provide disaster roaming service.

For an object that was once able to provide disaster roaming service, the first information may indicate that the object can no longer provide disaster roaming service, that is, the ability of the object to provide disaster roaming service disappears, is deactivated or stops.

For the object that cannot provide the disaster roaming service, the first information may indicate that the object does not have the ability to provide the disaster roaming service, or that the ability of the object to provide the disaster roaming service is not activated or activated. For example, if the terminal position remains unchanged, the object a currently selected by the terminal is an object applicable to disasters. If the terminal detects object b and obtains that object b cannot provide disaster roaming services, the selected object can be changed from object a to object b. In this way, compared to that the terminal selected object a cannot obtain the service at all, the terminal selected object b can at least obtain emergency services, thereby improving the reliability of the terminal obtaining the service.

2. For the aforementioned 2), that is, the satisfaction of the first condition includes that the location of the terminal changes.

Optionally, the fifth object and the sixth object satisfy any one of the following:

i) The disaster situation of the fifth object and the sixth object is the same;

ii) the disaster situation of the fifth object and the sixth object is different;

iii) Both the fifth object and the sixth object are objects that can provide disaster roaming services;

iv) Both the fifth object and the sixth object are objects that cannot provide disaster roaming services;

ⅴ) One of the fifth object and the sixth object can provide disaster roaming service, and the other cannot provide disaster roaming service;

The fifth object is the object where the terminal is located before the location of the terminal changes, that is, the object where the terminal is located before moving; the sixth object is the location where the terminal is located after the location of the terminal changes. The object where the terminal is located, that is, the object where the terminal is located after moving; the object includes at least one of the following: a network; a tracking area; a cell;

In i), the fifth object and the sixth object may both be disaster-applicable objects, or both may be disaster-applicable objects.

In ii), one of the fifth object and the sixth object is a disaster-applicable object, and the other object is a disaster-inapplicable object. For example, the fifth object is an object that is applicable to a disaster situation, and the sixth object is an object that is not applicable to a disaster situation; or, the fifth object is an object that is not applicable to a disaster situation, and the sixth object is a disaster situation Applicable objects.

In v), it can be: the fifth object is an object that can provide disaster roaming service, and the sixth object is an object that cannot provide disaster roaming service; or, the fifth object is an object that cannot provide disaster roaming service object, the sixth object is an object that can provide disaster roaming service.

The content involved in the first operation will be described below.

1. For the first sub-operation.

Optionally, the first sub-operation includes at least one of the following:

ⅰ) automatically leaving the first network selection mode where the terminal is currently located;

ii) Automatically enter the second network selection mode;

iii) automatically changing the network selection mode of the terminal;

iv) Determining the changed network selection mode of the terminal;

ⅴ) Determine the network selection mode before the terminal is changed;

ⅵ) determine whether to change the network selection mode of the terminal;

In this optional implementation manner, in i), ii) and iii), the first sub-operation is an operation of directly changing the network selection mode of the terminal. In iv), v) and v), the first sub-operation is an operation for determining whether to change the network mode of the terminal, the terminal may change the network selection mode, or may not change the network selection mode. It is determined by actual needs, which is not limited in this embodiment of the present application.

Further, the described first network selection mode (that is, the network selection mode before the terminal changes the network selection mode) and the second network selection mode (that is, the network selection mode after the terminal changes the network selection mode) can satisfy at least one of the following: item:

(1) one of the first network selection mode and the second network selection mode is a manual network selection mode, and the other is an automatic network selection mode; or, the first network selection mode and the second network selection mode The network modes are all automatic network selection mode or manual network selection mode;

(2) one of the first network selection mode and the second network selection mode supports (may also be referred to as allowing or able) to automatically select non-equivalent networks, and the other does not support automatic selection of non-equivalent networks;

(3) One of the first network selection mode and the second network selection mode supports automatic selection of forbidden objects, and the other does not support automatic selection of forbidden objects, and the objects include at least one of the following: a network; Tracking Area; Cell; Geographical Location.

During specific implementation, in the first implementation manner, the first network selection mode and the second network selection mode may satisfy: (1) in the first network selection mode and the second network selection mode. One is manual network selection mode, and the other is automatic network selection mode. In this implementation manner, the first network selection mode and the second network selection mode may further satisfy at least one of (2) and (3). That is, in this implementation, the first network selection mode before the terminal changes the network selection mode, and the second network selection mode after changing the network selection mode belongs to a different network selection mode type, and further, the first network selection mode and the second network selection mode are different. The capabilities of the two-network selection mode, such as whether to support the capability of automatically selecting non-equivalent networks and/or whether to support the capability of automatically selecting prohibited objects, may be the same or different.

In the second implementation manner, the first network selection mode and the second network selection mode may satisfy: (1) the first network selection mode and the second network selection mode are both automatic network selection modes or manual screen selection mode, and at least one of (2) and (3). That is, in this implementation, the first network selection mode before the terminal changes the network selection mode, and the second network selection mode after changing the network selection mode can be the same network selection mode type, but the first network selection mode and the second network selection mode. The capabilities of the network mode, such as whether to support the ability to automatically select non-equivalent networks and/or whether to support the ability to automatically select prohibited objects are different.

For ease of understanding, an example is described below:

It is assumed that the terminal automatically changes from network selection mode 1 to network selection mode 2.

For example: for the above-mentioned first implementation mode, when the network selection mode 1 is the automatic network selection mode, the network selection mode 2 can be the manual network selection mode; when the network selection mode 1 is the manual network selection mode, the network selection mode Mode 2 can be an automatic network selection mode. Further, network selection mode 1 and network selection mode 2 can all support automatic selection of non-equivalent networks and/or prohibited objects, or, one of network selection mode 1 and network selection mode 2 supports automatic selection of non-equivalent networks and/or or forbidden objects, the other does not support automatic selection of non-equivalent networks and/or forbidden objects.

For the above-mentioned second implementation manner, the network selection mode 1 and the network selection mode 2 may both belong to the automatic network selection mode or the automatic network selection mode, and one of the network selection mode 1 and the network selection mode 2 supports the automatic selection of non-equivalent networks and /or forbidden objects, another does not support automatic selection of non-equivalent networks and/or forbidden objects.

2. For the second sub-operation.

Optionally, the second sub-operation may include at least one of the following:

i) do not select the first network;

ii) Automatically select the second network;

iii) automatically changing the network selected by the terminal;

iv) determining the network selected before the terminal changes;

ⅴ) Determine the network selected after the terminal is changed;

v) Determine whether to change the selected network.

In i), the first network may be any one of the following: a network currently selected by the terminal; a network suitable for disaster situations; a network that cannot provide disaster roaming services.

When the first network is the network currently selected by the terminal, the terminal not selecting the first network may specifically be expressed as: the terminal abandons the selection of the first network, and the second sub-operation is an operation of directly changing the network selected by the terminal. In this case, the reason why the terminal does not select the first network may be: the disaster situation is applicable to the first network or the first network cannot provide disaster roaming service, etc.

In ii), the second network may be any one of the following: a network inapplicable to a disaster situation; a network capable of providing disaster roaming services. Further, the second network may satisfy at least one of the following:

The second network and the target network are not equivalent networks, and the target network is any one of the following: a home network of the terminal; a network selected by the terminal before performing the first operation;

The second network is a forbidden network.

Further, the second network is a forbidden network, which can be specifically represented as: the second network is a forbidden network corresponding to the target network.

For example, assuming that the home network of the terminal is network 1, the network selected before the first operation is network 2, but network 2 is in a disaster situation and cannot provide services, the terminal can automatically select network 3, and network 3 can be Disaster-inapplicable networks or networks capable of disaster roaming services.

In an implementation manner, assuming that the target network is the home network of the terminal, network 3 may not be an equivalent network of network 1, that is, network 3 is a non-equivalent network of network 1. Of course, the network 3 can also be an equivalent network of the network 1 .

In another implementation manner, assuming that the target network is a network selected by the terminal before performing the first operation, network 3 may not be an equivalent network of network 2, that is, network 3 is a non-equivalent network of network 2. Of course, network 3 can also be an equivalent network of network 2.

In another implementation manner, the network 3 may be a forbidden network. Further, the network 3 may be a forbidden network corresponding to the network 1, or a forbidden network corresponding to the network 2.

In iii), the second sub-operation is an operation of directly changing the network selected by the terminal. The changed network can satisfy one of the following: the disaster situation is not applicable; the disaster roaming service can be provided.

In iv), v) and v), the second sub-operation is an operation for determining whether to change the network selected by the terminal, the terminal may change the selected network, or may not change the selected network, specifically It is determined according to actual needs, which is not limited in this embodiment of the present application.

In this embodiment of the present application, optionally, the first operation may further include at least one of the following:

providing the first information to an upper layer of the terminal and/or a user;

providing the location change information of the terminal to an upper layer and/or a user of the terminal;

providing operation information of the first sub-operation to the upper layer of the terminal and/or the user;

The operation information of the second sub-operation is provided to the upper layer of the terminal and/or the user.

In specific implementation, the providing method may include at least one of the following: display (display); notification (inform or notify); sending (forward or send); indication (indicate); The application embodiments do not limit this.

The location change information of the terminal may include at least one of the following: the relationship between the object where the terminal is located before moving and the disaster situation, that is, whether the disaster situation is applicable to the object where the terminal is located before moving; The relationship between the object and the disaster situation; the relationship between the object where the terminal is located before moving and the disaster roaming service, that is, whether the object where the terminal is located before moving can provide the disaster roaming service; the object where the terminal is after moving and the disaster roaming service relation.

The operation information may include at least one of the following: operation process; operation result; operation reason.

The method for network selection in the embodiment of the present application will be described below with reference to specific scenarios.

1. Optionally, in the case where the first information is that the terminal obtains the disaster situation and is applicable to the third network, if the terminal is in the manual network selection mode, the first operation may include at least the following: One:

automatically selecting a fourth network capable of providing disaster roaming services to the terminal;

Automatically leave the manual screen selection mode.

Further, the fourth network may not be an equivalent network of the third network. Of course, in some cases, the fourth network may be an equivalent network of the third network.

The third network may be a network selected before the terminal performs the first operation, that is, the third network is a network manually selected by the terminal in a manual network selection mode. Of course, in some cases, the third network may be the home network of the terminal.

It should be noted that, in the case that the first terminal includes the automatic selection of the fourth network, the terminal may still maintain the manual network selection mode, or may change to the automatic network selection mode.

This optional implementation manner may include the following scenarios:

Scenario 1. When the terminal obtains that the disaster situation is applicable to network D, if the terminal is in the manual network selection mode, the terminal can automatically select a network that can provide disaster roaming services to the terminal (When the UE determines that the Disaster Condition applies to PLMN D, if the UE is inmanual mode, the UE can automatically select a PLMN which can provide DisasterRoaming service to the UE).

Scenario 2. In the case where the terminal obtains that the disaster situation is applicable to network D, if the terminal is in the manual network selection mode, the terminal can automatically select a network that can provide disaster roaming services to the terminal, even if the automatically selected network is not. The equivalent network of network D (When the UE determines that the Disaster Condition applies to PLMN D, if the UE is in manual mode, the UE can automatically select a PLMN which can provide Disaster Roaming service to the UE and even the PLMN is not an equivalent PLMN of the PLMN D).

Scenario three, under the situation that the terminal obtains that the disaster situation is applicable to the network D, if the terminal is in the manual network selection mode, then the terminal can automatically leave the manual network selection mode (When the UE determines that the Disaster Condition applies to PLMN D). , if the UE is in manual mode, the UE can exit manual network selection mode automatically).

In the above three scenarios, the terminal can notify the upper layer and/or the user that the terminal has left the manual network selection mode (the MS can provide an indication to the upper layer or users that the MS has exited manual network selection mode).

2. Optionally, when the first information includes: the terminal obtains that the disaster situation is no longer applicable to the fifth network, or the network selected by the terminal no longer provides disaster roaming services, if the If the terminal is in the automatic network selection mode, the first operation may include at least one of the following:

automatically selecting the fifth network;

automatically leave the automatic network selection mode;

Automatically enter the manual network selection mode.

Further, the fifth network may satisfy at least one of the following:

the fifth network is a network to which a disaster situation has been applicable;

The fifth network is a home network of the terminal or a non-home network of the terminal.

This optional implementation manner may include the following scenarios:

Scenario 1: When the terminal acquires that the PLMN D has a disaster, if the terminal is in the automatic network selection mode, the terminal can automatically leave the automatic network selection mode.

In this scenario, the terminal can be changed to manual network selection mode. Further, after changing to the manual network selection mode, the manually selected network may be a network capable of providing disaster roaming services.

Scenario 2: When the terminal obtains that the PLMN D no longer provides the disaster roaming service, if the terminal is in the automatic network selection mode, the terminal automatically leaves the PLMN D.

3. Optionally, when the first information includes: the terminal acquires that the disaster situation is no longer applicable to the sixth network, or the network selected by the terminal no longer provides disaster roaming services, if the If the terminal is in the manual network selection mode, the first operation includes at least one of the following:

automatically selecting the sixth network;

automatically leave the manual network selection mode;

Automatically enter the automatic network selection mode.

Further, the sixth network may satisfy at least one of the following:

the sixth network is not an equivalent network of a network capable of providing roaming services;

the sixth network is a network to which the disaster situation has been applicable;

The sixth network is a home network of the terminal or a non-home network of the terminal.

This optional implementation manner may include the following scenarios:

Scenario 1: When the terminal acquires that the PLMN D has a disaster, if the terminal is in the manual network selection mode, the terminal can automatically leave the manual network selection mode.

In this scenario, the terminal can be changed to automatic network selection mode. Also, the automatically selected network may be a non-equivalent network of PLMN D.

Scenario 2: When the terminal acquires that PLMN D no longer provides disaster roaming services, if the terminal is in the manual network selection mode, it automatically leaves PLMN D and enters the non-equivalent network of PLMN D.

In this embodiment of the present application, optionally, before the terminal performs the first operation when the first condition is satisfied, the method may further include:

receiving, by the terminal, indication information sent by a network-side device in the seventh network, where the indication information is used to indicate that the first condition is satisfied;

Wherein, the seventh network is a target network, or other networks except the target network; the target network is any one of the following: the home network of the terminal; the terminal selects the network before executing the first operation network of.

Further, the seventh network is a network that can provide services when a disaster event occurs.

For ease of understanding, an example is described below:

It is assumed that the triggering condition for the terminal to perform the first operation is: a disaster occurs in the PLMN D. In an implementation manner, the network side device which may be the PLMN D informs the terminal that a disaster situation has occurred. In another implementation manner, the network side device of the PLMNA informs the terminal PLMN D that a disaster situation has occurred.

It should be noted that the various optional implementation manners introduced in the embodiments of the present application may be implemented in combination with each other, or may be implemented independently, which are not limited by the embodiments of the present application.

For ease of understanding, an example is described below:

In the embodiment of this application, when the terminal knows (actively knows, or passively knows, e.g. determines, finds, benotified, or be informed) that the DC (Disaster Condition) information of the network changes, for example:

a) Network occurs DC (DC applicable to Network); and/or,

b) a change in the range of occurrences of DCs in the network; and/or,

c) DC is no longer applicable to the network;

UE can:

1) automatically changing the network selection mode of the terminal UE; and/or,

2) automatically change the network selected by the terminal; and/or,

3) provide the upper layer (or user) with this change in the selection mode; and/or,

4) Provide this network change to the upper layer (or user);

5) Provide the change of the DC information of the network to the upper layer (or user).

Optionally, if the UE knows that a Disaster Condition has occurred in the network (i.e. PLMN D) (e.g. the network selected by the UE, selected PLMN), the UE can automatically change the network selection mode of the UE.

Optionally, if the UE knows that the network (i.e. PLMN D) (e.g. the network selected by the UE, selected PLMN) has a Disaster Condition, if the current UE is in the manual network selection mode, the UE can automatically select a network that can provide disaster roaming services; then , the network selection mode will switch to the automatic network selection mode.

Further, the network automatically selected by the UE that can provide the disaster roaming service may not be an equivalent network of the network in which the disaster occurs.

Optionally, if the UE determines the network (i.e. PLMN D) (e.g. the network selected by the UE, selected PLMN) Disaster Condition occurs, if the current UE is in the manual network selection mode, the UE can automatically leave the manual network selection mode, such as changing to automatic selection. network mode.

And, the UE can notify the upper layer (or user) that the terminal has left the manual network selection mode (the MS can provide an indication to the upper layer (or user)s that the MS has exited manual network selection mode).

Optionally, if the current UE is in the manual network selection mode, the UE automatically selects a network that can provide disaster roaming services, but the network selection mode is still manual network selection.

Optionally, if the UE knows that a Disaster Condition occurs in the network (i.e. PLMN D) selected by the UE, if the current UE is in the manual network selection mode, the UE can also display (or notify) to upper layer (or user): whether the user modifies the network selection patterns, and why.

Optionally, the UE may display (or notify) to Upper layer (or user): Network D has occurred DC.

Optionally, after the UE knows that the DC occurs in the network D, the UE displays (or notifies) to Upper layer (or user): the DC occurs in the network D.

Optionally, the content of the display (or notification) may include at least one of the following:

1) DC occurs in network D;

2) The area where DC occurs in network D, such as geographic scope, TA area;

3) The time when DC occurs.

Optionally, if the UE determines the network (i.e. PLMN D) (e.g. UE selected network, selected PLMN) Disaster Condition occurs, if the current UE is in the automatic network selection mode, the UE can automatically leave the automatic network selection mode, for example, change to manual selection. After the network mode is changed to manual network selection mode, the selected network is the network that can provide disaster roaming services for the disaster-prone network.

Optionally, when the UE knows that the DC is no longer applicable to network D, the UE can automatically change the network selection mode.

Optionally, when the UE knows that the DC is no longer applicable to network D, the UE can automatically change the network selection mode: leave the manual mode, for example, change from manual mode to Automatic mode.

Optionally, when the UE knows that the DC is no longer applicable to the network D, the UE can automatically change the network selection mode: leave the Automatic mode, for example, change from the Automatic mode to the manual mode.

For example, after changing to manual mode, the network selected by the UE is: the network manually selected by the terminal before the occurrence of DC on network D.

Optionally, when the UE knows that the DC is no longer applicable to network D, the UE may display (or notify) to the upperlayer (or user): the network selection mode has changed, such as leaving a network selection mode, and/or changing to a network selection mode model.

Optionally, when the UE knows that the DC is no longer applicable to the network D, the UE displays (or notifies) to the Upperlayer (or user): the DC is no longer applicable to the network D.

Optionally, after receiving the information that the DC is no longer applicable to network D, the upper layer (or user) can modify the network selection mode, for example, from manual mode to automatic mode.

Describe below in conjunction with embodiment:

Embodiment 1: It is found that DC occurs in network D, and the network selection mode of the UE automatically leaves the manual mode and changes to the automatic mode.

If the UE knows that the network (i.e. PLMN D) (that is, the network selected by the UE, selected PLMN) has a DisasterCondition, if the current UE is in the manual network selection mode, the UE can perform at least one of the following:

1) Automatically select a network that can provide disaster roaming services, and the network that can provide disaster roaming services may not be the equivalent network of the network where Disaster Condition occurs;

2) Can automatically leave the manual network selection mode, for example, change to the automatic network selection mode;

3) The upper layer (or user) can display (or notify) network D that DC occurs;

See Figure 3 for easy understanding. As shown in Figure 3, the method for selecting a network may include the following steps:

Step 1, the UE manually selects network D.

Step 2, UE determines DC applicable to network D.

During the determination process, the UE may perform step 2a and/or step 2b.

In step 2a, the UE receives a message from the network D, and/or performs signaling interaction with the network D.

The signaling interaction can be implemented through at least one of the following processes: for example, a system information acquisition (System information acquisition) process; a Public Warning System (PWS) message acquisition process; a registration process; technology to perform these processes).

In step 2b, the UE receives a message from network A (ie, a network without DC), and/or performs signaling interaction with network A.

The signaling interaction can be implemented through at least one of the following processes: a system information acquisition (System information acquisition) process, a PWS message acquisition process;

Step 2c, the UE notifies the Upper layer (or user) that the DC situation has changed.

For example: Disaster Condition applicable to Network D.

Step 3, UE determines: network A can provide disaster roaming service, and network A is not an equivalent network of network D.

Step 4, the UE automatically selects the network A; automatically leaves the manual network selection mode (for example, changes to the automatic network selection mode); attempts to register on the network A.

Step 4a may be performed if necessary, such as business needs.

Step 4a, signaling interaction with network A, for example, initiating registration to obtain the Normal service.

Step 4b, the UE notifies the Upper layer (or user) that the UE has left the manual network selection mode.

For example, enter the automatic network selection mode, and can carry the automatically selected network information, such as network identification, and the conditions (such as geographical scope) that can provide disaster roaming services.

Embodiment 2: It is found that the DC is not applicable to network D, and the UE automatically changes the network selection mode from automatic mode to manual mode.

See Figure 4 for easy understanding. As shown in Figure 4, the method for selecting a network may include the following steps:

In step 0, the UE manually selects the network D, and the UE finds that a DC occurs in the network D.

Step 1, the UE leaves the manual network selection mode, enters the automatic network selection mode, and automatically selects network A.

The network A can provide disaster roaming services for the UE, and the PLMN A is in the terminal's list of forbidden PLMNs.

Step 2, UE determines: DC is no longer applicable to network D.

During the determination process, the UE may have a signaling process with network A and network D, such as steps 2a and 2b.

In step 2a, the UE obtains the message of the network D, and/or performs signaling interaction with the network D.

In step 2b, the UE obtains the information of network A (ie, the network without DC), and/or performs signaling interaction with network A.

Step 2c, the UE notifies the Upper layer (or user) that the DC condition has changed, for example: DisasterCondition not applicable to network D.

Step 3, the UE automatically selects the network D; automatically leaves the automatic network selection mode (for example, changes to the manual network selection mode); attempts to register on the network D.

The UE may have a signaling process with the network D, such as step 3a.

Step 3a, signaling interaction with the network D, for example, initiating registration to obtain the Normal service.

Step 3b, the UE notifies the Upper layer (or user) that the UE has left the automatic network selection mode.

For example, enter the manual network selection mode, and can carry manually selected network information, such as the identifier of network D.

Embodiment 3: The UE automatically changes the manual mode to the automatic mode when it is found that the DC is not applicable to the network D

See Figure 5 for easy understanding. As shown in Figure 5, the method for selecting a network may include the following steps:

Step 0, DC occurs in network D.

Step 1, the UE manually selects PLMN A.

The PLMN A is a forbidden PLMN, that is, in the list of forbidden PLMNs of the terminal.

Step 2, UE determines that DC is not applicable to network D.

During the determination process, the UE may have a signaling process with network A and network D, such as steps 2a and 2b.

In step 2a, the UE receives a message from the network D, and/or performs signaling interaction with the network D.

In step 2b, the UE receives a message from network A (ie, a network without DC), and/or performs signaling interaction with network A.

Step 2c, the UE notifies the Upper layer (or user): the DC situation has changed, for example: DisasterCondition not applicable to network D;

Step 3, the UE can automatically select the network D; automatically leave the manual network selection mode, for example, change to the automatic network selection mode; try to register on the network D to obtain services.

In some embodiments, the UE may also automatically select an available network B, which is not the network D. For example, since PLMN A is in the list of forbidden PLMNs of the terminal, when the DC is not applicable to network D, PLMN A may no longer provide services for the UE, resulting in the failure of the UE to obtain normal services.

The UE may have a signaling process with the network D, such as step 3a.

Step 3a, interact with network D signaling, such as a registration process;

Step 3b, the UE notifies the Upper layer (or user) that the UE has left the manual network selection mode.

For example, enter the automatic network selection mode, and can carry the automatically selected network information, such as the identifier of network D.

In the embodiment of the present application, when the terminal is in the manual network selection mode, if a disaster DC (Disaster Condition) occurs on the manually selected network D, if there is currently a network A that can provide disaster roaming services for the terminal, but the network A is not a network The equivalent network of D, then the terminal can obtain the Normal service.

It should be noted that, in the network selection method provided by the embodiments of the present application, the execution body may be a network selection device, or a control module in the network selection device for executing the network selection method. In this embodiment of the present application, the method for performing a network selection by a network selection device is taken as an example to describe the network selection device provided by the embodiment of the present application.

Referring to FIG. 6 , FIG. 6 is a structural diagram of a network selection device provided by an embodiment of the present application.

As shown in Figure 6, the network selection device 600 includes:

an execution module 601, configured to execute a first operation when the first condition is satisfied;

Wherein, the first condition satisfies at least one of the following:

The terminal acquires first information related to the disaster situation;

the location of the terminal changes;

The first operation includes at least one of the following:

The first sub-operation related to the network selection mode;

The second sub-operation related to the network.

Optionally, the first information indicates at least one of the following:

The disaster situation applies to the first object;

changes to whom the disaster situation applies;

The disaster situation does not apply to the second object;

The third object can provide disaster roaming services;

The fourth object cannot provide disaster roaming services;

Wherein, the object includes at least one of the following: network; tracking area; cell; geographic location.

Optionally, the second object includes at least one of the following: an object to which the disaster situation was applicable; an object to which the disaster situation did not apply;

The fourth object includes at least one of the following: an object that can once provide disaster roaming service; an object that cannot provide disaster roaming service.

Optionally, in the case where the first condition satisfies including the location of the terminal changing, the fifth object and the sixth object satisfy any one of the following:

The disaster situation of the fifth object and the sixth object is the same;

The disaster situation of the fifth object and the sixth object are different;

Both the fifth object and the sixth object are objects that can provide disaster roaming services;

Both the fifth object and the sixth object are objects that cannot provide disaster roaming services;

One of the fifth object and the sixth object can provide disaster roaming service, and the other cannot provide disaster roaming service;

Wherein, the fifth object is the object where the terminal is located before the location of the terminal changes; the sixth object is the object where the terminal is located after the location of the terminal changes; the objects include At least one of the following: network; tracking area; cell; geographic location.

Optionally, the first operation further includes at least one of the following:

providing the first information to an upper layer of the terminal and/or a user;

providing the location change information of the terminal to the upper layer of the terminal and/or the user;

providing operation information of the first sub-operation to the upper layer of the terminal and/or the user;

The operation information of the second sub-operation is provided to the upper layer of the terminal and/or the user.

Optionally, the first sub-operation includes at least one of the following:

automatically leave the first network selection mode where the terminal is currently located;

Automatically enter the second network selection mode;

automatically changing the network selection mode of the terminal;

determining the changed network selection mode of the terminal;

Determine the network selection mode before the terminal is changed;

determining whether to change the network selection mode of the terminal;

Optionally, the first network selection mode and the second network selection mode satisfy at least one of the following:

One of the first network selection mode and the second network selection mode is a manual network selection mode, and the other is an automatic network selection mode; or, the first network selection mode and the second network selection mode are both. For automatic network selection mode or manual network selection mode;

One of the first network selection mode and the second network selection mode supports automatic selection of non-equivalent networks, and the other does not support automatic selection of non-equivalent networks;

One of the first network selection mode and the second network selection mode supports automatic selection of prohibited objects, and the other does not support automatic selection of prohibited objects, and the objects include at least one of the following: network; tracking area; cell; geography Location.

Optionally, the second sub-operation includes at least one of the following:

Do not select the first network;

Automatically select the second network;

automatically changing the network selected by the terminal;

determining the network selected before the terminal changes;

determining the network selected after the terminal is changed;

Determines whether to change the selected network.

Optionally, the second network satisfies at least one of the following:

The second network and the target network are not equivalent networks, and the target network is any one of the following: a home network of the terminal; a network selected by the terminal before performing the first operation;

The second network is a forbidden network.

Optionally, in the case where the first information is that the terminal obtains that the disaster situation is applicable to the third network, if the terminal is in a manual network selection mode, the first operation includes at least one of the following:

automatically selecting a fourth network capable of providing disaster roaming services to the terminal;

Automatically leave the manual screen selection mode.

Optionally, the fourth network is not an equivalent network of the third network;

The third network is a network selected before the terminal performs the first operation.

Optionally, when the first information includes: the terminal obtains that the disaster situation is no longer applicable to the fifth network, or, the network selected by the terminal no longer provides the disaster roaming service, if the terminal is in the In automatic network selection mode, the first operation includes at least one of the following:

automatically selecting the fifth network;

automatically leave the automatic network selection mode;

Automatically enter the manual network selection mode.

Optionally, the fifth network satisfies at least one of the following:

the fifth network is a network to which a disaster situation has been applicable;

The fifth network is a home network of the terminal or a non-home network of the terminal.

Optionally, when the first information includes: the terminal acquires that the disaster situation is no longer applicable to the sixth network, or the network selected by the terminal no longer provides the disaster roaming service, if the terminal is in the In manual network selection mode, the first operation includes at least one of the following:

automatically selecting the sixth network;

automatically leave the manual network selection mode;

Automatically enter the automatic network selection mode.

Optionally, the sixth network satisfies at least one of the following:

the sixth network is not an equivalent network of a network capable of providing roaming services;

the sixth network is a network to which the disaster situation has been applicable;

The sixth network is a home network of the terminal or a non-home network of the terminal.

Optionally, the network selection device 600 further includes:

a receiving module, configured to receive indication information sent by a network-side device in the seventh network, where the indication information is used to indicate that the first condition is satisfied;

Wherein, the seventh network is a target network, or other networks except the target network; the target network is any one of the following: the home network of the terminal; the terminal selects the network before executing the first operation network of.

Optionally, the seventh network is a network that can provide services when a disaster event occurs.

The network selection device in this embodiment of the present application may be a device, a device or an electronic device with an operating system, or may be a component, an integrated circuit, or a chip in a terminal. The apparatus or electronic device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television) , TV), teller machine or self-service machine, etc., which are not specifically limited in the embodiments of the present application.

The network selection device 600 provided in this embodiment of the present application can implement each process implemented by the method embodiment of FIG. 2 and achieve the same technical effect. To avoid repetition, details are not repeated here.

Optionally, as shown in FIG. 7 , an embodiment of the present application further provides a terminal 700, including a processor 701, a memory 702, a program or instruction stored in the memory 702 and executable on the processor 701, the When the program or the instruction is executed by the processor 701, each process of the above-mentioned method embodiment of FIG. 2 is implemented, and the same technical effect can be achieved.

An embodiment of the present application further provides a terminal, including a processor and a communication interface, where the processor is configured to: perform a first operation when a first condition is satisfied; where the first condition is satisfied includes at least one of the following: the The terminal acquires the first information related to the disaster situation; the location of the terminal changes; the first operation includes at least one of the following: a first sub-operation related to the network selection mode; a second sub-operation related to the network operate. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect. Specifically, FIG. 8 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.

The terminal 800 includes but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, and a processor 810, etc. at least part of the components.

Those skilled in the art can understand that the terminal 800 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 810 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions. The terminal structure shown in FIG. 8 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.

It should be understood that, in this embodiment of the present application, the input unit 804 may include a graphics processor (Graphics Processing Unit, GPU) 8041 and a microphone 8042. camera) to process the image data of still pictures or videos. The display unit 806 may include a display panel 8061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 807 includes a touch panel 8081 and other input devices 8082 . The touch panel 8081 is also called a touch screen. The touch panel 8081 may include two parts, a touch detection device and a touch controller. Other input devices 8082 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.

In the embodiment of the present application, the radio frequency unit 801 receives the downlink data from the network side device, and then processes it to the processor 810; in addition, sends the uplink data to the network side device. Generally, the radio frequency unit 801 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

Memory 809 may be used to store software programs or instructions as well as various data. The memory 809 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like. In addition, the memory 809 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

The processor 810 may include one or more processing units; optionally, the processor 810 may be integrated into an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc. , the modem processor mainly deals with wireless communication, such as the baseband processor. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 810.

The processor 810 is used for:

In the case that the first condition is satisfied, the first operation is performed;

Wherein, the first condition satisfies at least one of the following:

The terminal acquires first information related to the disaster situation;

the location of the terminal changes;

The first operation includes at least one of the following:

The first sub-operation related to the network selection mode;

The second sub-operation related to the network.

It should be noted that, in this embodiment, the above-mentioned terminal 800 can implement each process in the method embodiment of FIG. 2 in this embodiment of the present application, and achieve the same beneficial effect. To avoid repetition, details are not repeated here.

Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, each process of the foregoing embodiments of the network selection method can be implemented, and the same technology can be achieved. The effect, in order to avoid repetition, is not repeated here. The computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium. When the program or instruction is executed by a processor, each process of the above-mentioned method embodiment of FIG. 2 can be implemented, and the same can be achieved. In order to avoid repetition, the technical effect will not be repeated here.

Wherein, the processor is the processor in the terminal described in the foregoing embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the above method in the embodiment of FIG. 2 . Each process can achieve the same technical effect, so in order to avoid repetition, it will not be repeated.

It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in the reverse order depending on the functions involved. To perform functions, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

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

The embodiments of the present application are described above with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are only illustrative rather than restrictive, and those of ordinary skill in the art are Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims (36)

1. A network selection method, comprising:

the terminal executes a first operation under the condition that a first condition is met;

wherein the first condition is satisfied by including at least one of:

the terminal acquires first information related to disaster conditions;

the position of the terminal changes;

the first operation comprises at least one of:

a first sub-operation associated with a network selection mode;

a second sub-operation associated with the network.

2. The method of claim 1, wherein the first information indicates at least one of:

the disaster condition applies to the first object;

the object for which the disaster situation applies changes;

the disaster condition does not apply to the second object;

the third object can provide disaster roaming services;

the fourth object cannot provide disaster roaming service;

wherein the object comprises at least one of: a network; a tracking area; a cell; a geographic location.

3. The method of claim 2, wherein the second object comprises at least one of: objects for which the disaster situation was applicable; objects for which the disaster situation was not applicable;

the fourth object comprises at least one of: objects that once were able to provide disaster roaming services; objects that fail to provide disaster roaming services.

4. The method according to claim 1, wherein in a case where the first condition is satisfied and includes that the location of the terminal has changed, the fifth object and the sixth object satisfy any one of:

the disaster situation of the fifth object and the sixth object is the same;

the disaster situation of the fifth object and the sixth object is different;

the fifth object and the sixth object are both objects capable of providing disaster roaming service;

the fifth object and the sixth object are both objects that cannot provide disaster roaming service;

one of the fifth object and the sixth object is an object capable of providing disaster roaming service, and the other is incapable of providing disaster roaming service;

the fifth object is an object where the terminal is located before the position of the terminal is changed; the sixth object is an object where the terminal is located after the position of the terminal is changed; the object comprises at least one of: a network; a tracking area; a cell; a geographic location.

5. The method of claim 1, wherein the first operation further comprises at least one of:

providing the first information to an upper layer of the terminal and/or a user;

providing the position change information of the terminal to an upper layer and/or a user of the terminal;

providing operation information of the first sub-operation to an upper layer and/or a user of the terminal;

and providing the operation information of the second sub-operation to an upper layer and/or a user of the terminal.

6. The method of claim 1, wherein the first sub-operation comprises at least one of:

automatically leaving a first network selection mode in which the terminal is currently located;

automatically entering a second network selection mode;

automatically changing the network selection mode of the terminal;

determining a network selection mode after the terminal is changed;

determining a network selection mode before the terminal is changed;

and determining whether to change the network selection mode of the terminal.

7. The method of claim 6, wherein the first network selection mode and the second network selection mode satisfy at least one of:

one of the first network selection mode and the second network selection mode is a manual network selection mode, and the other one is an automatic network selection mode; or both the first network selection mode and the second network selection mode are an automatic network selection mode or a manual network selection mode;

one of the first network selection mode and the second network selection mode supports automatic selection of a non-equivalent network, and the other one does not support automatic selection of a non-equivalent network;

one of the first network selection mode and the second network selection mode supports automatically selecting a prohibited object, and the other does not support automatically selecting a prohibited object, the object including at least one of: a network; a tracking area; a cell; a geographic location.

8. The method according to claim 1, characterized in that said second sub-operation comprises at least one of:

not selecting the first network;

automatically selecting a second network;

automatically changing the network selected by the terminal;

determining a network selected before the terminal is changed;

determining a network selected by the terminal after the terminal is changed;

it is determined whether to change the selected network.

9. The method of claim 8, wherein the second network at least one of:

the second network and the target network are not equivalent networks, and the target network is any one of the following: a home network of the terminal; the terminal selects a network before executing the first operation;

the second network is a forbidden network.

10. The method according to claim 1, wherein in a case that the first information indicates that the terminal has acquired the disaster situation and is applicable to a third network, if the terminal is in a manual network selection mode, the first operation includes at least one of:

automatically selecting a fourth network, the fourth network capable of providing disaster roaming service to the terminal;

and automatically leaving the manual network selection mode.

11. The method of claim 10, wherein the fourth network is not an equivalent network of the third network;

the third network is a network selected by the terminal before the first operation is performed.

12. The method of claim 1, wherein the first information comprises: the terminal acquires that the disaster situation is no longer applicable to a fifth network, or the terminal selects a network that no longer provides disaster roaming service, and if the terminal is in an automatic network selection mode, the first operation includes at least one of the following operations:

automatically selecting the fifth network;

automatically leaving the automatic network selection mode;

and automatically entering a manual network selection mode.

13. The method of claim 12, wherein the fifth network at least one of:

the fifth network is a network to which the disaster situation applies once;

the fifth network is a home network of the terminal or a non-home network of the terminal.

14. The method of claim 1, wherein the first information comprises: the terminal acquires that the disaster situation is no longer applicable to the sixth network, or the terminal selects a network that no longer provides disaster roaming service, and if the terminal is in a manual network selection mode, the first operation includes at least one of the following operations:

automatically selecting the sixth network;

automatically leaving the manual network selection mode;

and automatically entering an automatic network selection mode.

15. The method of claim 14, wherein the sixth network satisfies at least one of:

the sixth network is not an equivalent network of a network that can provide a roaming service;

the sixth network is a network to which a disaster situation has been applicable;

the sixth network is a home network of the terminal or a non-home network of the terminal.

16. The method of claim 1, wherein before the terminal performs the first operation if the first condition is satisfied, the method further comprises:

the terminal receives indication information sent by network side equipment in a seventh network, wherein the indication information is used for indicating that the first condition is met;

wherein the seventh network is a target network, or a network other than the target network; the target network is any one of: a home network of the terminal; the terminal selects a network before performing the first operation.

17. The method of claim 16, wherein the seventh network is a network that can provide services in the event of a disaster event.

18. A network selection apparatus, comprising:

the execution module is used for executing a first operation under the condition that a first condition is met;

wherein the first condition satisfaction comprises at least one of:

the terminal acquires first information related to disaster conditions;

the position of the terminal changes;

the first operation comprises at least one of:

a first sub-operation associated with a network selection mode;

a second sub-operation associated with the network.

19. The network selection apparatus of claim 18, wherein the first information indicates at least one of:

the disaster condition applies to the first object;

the object for which the disaster situation applies changes;

the disaster condition does not apply to the second object;

the third object can provide disaster roaming services;

the fourth object cannot provide disaster roaming service;

wherein the object comprises at least one of: a network; a tracking area; a cell; a geographic location.

20. The network selection apparatus of claim 19, wherein the second object comprises at least one of: objects for which the disaster situation was applicable; objects for which the disaster situation was not applicable;

the fourth object comprises at least one of: objects that once were able to provide disaster roaming services; objects that cannot provide disaster roaming services.

21. The network selection apparatus according to claim 18, wherein in a case where the first condition is satisfied including a change in the location of the terminal, the fifth object and the sixth object satisfy any one of:

the disaster situation of the fifth object and the sixth object is the same;

the disaster situation of the fifth object and the sixth object is different;

the fifth object and the sixth object are both objects capable of providing disaster roaming service;

the fifth object and the sixth object are both objects that cannot provide disaster roaming service;

one of the fifth object and the sixth object is an object capable of providing disaster roaming service, and the other is incapable of providing disaster roaming service;

the fifth object is an object where the terminal is located before the position of the terminal is changed; the sixth object is an object where the terminal is located after the position of the terminal is changed; the object includes at least one of: a network; a tracking area; a cell; a geographic location.

22. The network selection apparatus of claim 18, wherein the first operation further comprises at least one of:

providing the first information to an upper layer of the terminal and/or a user;

providing the position change information of the terminal to an upper layer and/or a user of the terminal;

providing operation information of the first sub-operation to an upper layer and/or a user of the terminal;

and providing the operation information of the second sub-operation to an upper layer and/or a user of the terminal.

23. A network selection apparatus according to claim 18, characterized in that the first sub-operation comprises at least one of:

automatically leaving a first network selection mode in which the terminal is currently located;

automatically entering a second network selection mode;

automatically changing the network selection mode of the terminal;

determining a network selection mode after the terminal is changed;

determining a network selection mode before the terminal is changed;

and determining whether to change the network selection mode of the terminal.

24. The network selection apparatus of claim 23, wherein the first network selection mode and the second network selection mode satisfy at least one of:

one of the first network selection mode and the second network selection mode is a manual network selection mode, and the other one is an automatic network selection mode; or both the first network selection mode and the second network selection mode are an automatic network selection mode or a manual network selection mode;

one of the first network selection mode and the second network selection mode supports automatic selection of a non-equivalent network, and the other one does not support automatic selection of a non-equivalent network;

one of the first network selection mode and the second network selection mode supports automatically selecting a prohibited object, and the other does not support automatically selecting a prohibited object, the object including at least one of: a network; a tracking area; a cell; a geographic location.

25. A network selection apparatus according to claim 18, characterized in that the second sub-operation comprises at least one of:

not selecting the first network;

automatically selecting a second network;

automatically changing the network selected by the terminal;

determining a network selected before the terminal is changed;

determining a network selected after the terminal is changed;

it is determined whether to change the selected network.

26. The network selection apparatus of claim 25, wherein the second network satisfies at least one of:

the second network and the target network are not equivalent networks, and the target network is any one of the following: a home network of the terminal; the terminal selects a network before executing the first operation;

the second network is a forbidden network.

27. The network selection apparatus according to claim 18, wherein in a case that the first information indicates that the disaster acquired by the terminal is applicable to a third network, if the terminal is in a manual network selection mode, the first operation includes at least one of:

automatically selecting a fourth network, the fourth network capable of providing disaster roaming services to the terminal;

and automatically leaving the manual network selection mode.

28. A network selection apparatus according to claim 27, wherein the fourth network is not an equivalent network of the third network;

the third network is a network selected by the terminal before the first operation is performed.

29. The network selecting apparatus of claim 18, wherein the first information comprises: the terminal acquires that the disaster situation is no longer applicable to a fifth network, or the terminal selects a network that no longer provides disaster roaming service, and if the terminal is in an automatic network selection mode, the first operation includes at least one of the following operations:

automatically selecting the fifth network;

automatically leaving the automatic network selection mode;

and automatically entering a manual network selection mode.

30. A network selection apparatus according to claim 29, wherein the fifth network is at least one of:

the fifth network is a network to which a disaster situation has been applicable;

the fifth network is a home network of the terminal or a non-home network of the terminal.

31. The network selecting apparatus of claim 18, wherein the first information comprises: the first operation includes at least one of the following operations when the terminal acquires that the disaster situation is no longer applicable to the sixth network, or when the network selected by the terminal is no longer providing the disaster roaming service, and the terminal is in the manual network selection mode:

automatically selecting the sixth network;

automatically leaving the manual network selection mode;

and automatically entering an automatic network selection mode.

32. The network selection apparatus of claim 31, wherein the sixth network satisfies at least one of:

the sixth network is not an equivalent network of a network that can provide roaming services;

the sixth network is a network to which a disaster situation has been applicable;

the sixth network is a home network of the terminal or a non-home network of the terminal.

33. The network selection apparatus of claim 18, further comprising:

a receiving module, configured to receive indication information sent by a network side device in a seventh network, where the indication information is used to indicate that the first condition is met;

wherein the seventh network is a target network, or a network other than the target network; the target network is any one of: a home network of the terminal; the terminal selects a network before performing the first operation.

34. A network selection apparatus as claimed in claim 33, wherein the seventh network is a network which can provide services in the event of a disaster.

35. A terminal comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the network selection method according to any one of claims 1 to 17.

36. A readable storage medium, characterized in that it stores thereon a program or instructions which, when executed by a processor, implement the steps of the network selection method of any one of claims 1 to 17.

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