CN108834187B - Mobile terminal and temperature control method thereof - Google Patents
Mobile terminal and temperature control method thereof Download PDFInfo
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- CN108834187B CN108834187B CN201810603262.5A CN201810603262A CN108834187B CN 108834187 B CN108834187 B CN 108834187B CN 201810603262 A CN201810603262 A CN 201810603262A CN 108834187 B CN108834187 B CN 108834187B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
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Abstract
The invention relates to the technical field of electronic communication, in particular to a mobile terminal and a temperature control method thereof. The method comprises the following steps: detecting whether the temperature of the mobile terminal is greater than a first preset threshold value or not; if the temperature of the mobile terminal is greater than the first preset threshold value, detecting whether the mobile terminal is in a VoLTE call state currently; if the mobile terminal is in a VoLTE call state currently, switching the VoLTE call to a CS domain call; and after the VoLTE call is switched to the CS domain call, closing the 4G network. When the temperature of the mobile terminal is greater than a first preset threshold value and the mobile terminal is in a VOLTE call state, the VOLTE call is switched to a CS domain call, and the method aims to solve the problem that in the existing temperature control method, when the temperature of the mobile terminal is currently in the VOLTE state and rises to LEVEL _2, the mobile terminal directly closes the 4G function and then registers in a 2G/3G network, so that the call is stopped.
Description
Technical Field
The invention relates to the technical field of electronic communication, in particular to a mobile terminal and a temperature control method thereof.
Background
At present, the mobile terminal supports 2G/3G/4G, wherein the 4G function also supports VoLTE. Meanwhile, the terminal also has a corresponding temperature control mechanism: the terminal temperature LEVEL is divided into three LEVELs of LEVEL:1, 2 and 3, each LEVEL has a corresponding threshold value, the terminal normally works in LEVEL _1, 2G/3G/4G can normally work at the temperature LEVEL, when the temperature rises to LEVEL _2, if the terminal works in the 4G state, the 4G function is directly closed, the terminal re-registers to the 2G/3G network, and when the temperature rises to LEVEL _3, the terminal directly enters an emergency call mode. This temperature control mechanism has a problem: if the terminal is currently in the VoLTE state, and the temperature rises to LEVEL _2, the terminal directly turns off the 4G function and then registers in the 2G/3G network, although the CS domain call can be dialed again, the user experience is poor.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a mobile terminal and a temperature control method thereof, wherein when the temperature of the mobile terminal is greater than a first preset threshold and the mobile terminal is in a VOLTE (voice over long term evolution) conversation state, the VoLTE conversation is switched to a CS (circuit switched) domain conversation, and the problem that the conversation is stopped because the temperature of the mobile terminal is increased to LEVEL _2 and the terminal can directly close the 4G function and then register in a 2G/3G network in the conventional temperature control method is solved.
The technical scheme provided by the invention is as follows:
a temperature control method of a mobile terminal, the method comprising:
detecting whether the temperature of the mobile terminal is greater than a first preset threshold value or not;
if the temperature of the mobile terminal is greater than the first preset threshold value, detecting whether the mobile terminal is in a VoLTE call state currently;
if the mobile terminal is in a VoLTE call state currently, switching the VoLTE call to a CS domain call;
and after the VoLTE call is switched to the CS domain call, closing the 4G network.
Further, after the step of detecting whether the mobile terminal is currently in the VoLTE call state if the temperature of the mobile terminal is greater than the first preset threshold, the method includes:
and if the mobile terminal is not in the VoLTE call state currently, closing the 4G network and registering to the 2G/3G network.
Further, the step of switching the VoLTE call to the CS domain call if the mobile terminal is currently in the VoLTE call state includes:
when the mobile terminal is in a VoLTE call state currently, initiating a switching request from a PS domain to a CS domain;
receiving feedback for initiating a request for switching from a PS domain to a CS domain;
and establishing the CS domain call according to the feedback of the request for initiating the switching from the PS domain to the CS domain.
Further, after the step of closing the 4G network after the VoLTE call is switched to the CS domain call, the method includes:
detecting whether the temperature of the mobile terminal is greater than a second preset threshold value, wherein the second preset threshold value is greater than the first preset threshold value;
and if the temperature of the mobile terminal is greater than the second preset threshold value, closing the 2G/3G/4G network and entering an emergency call mode.
Further, after the step of closing the 2G/3G/4G network and entering the emergency call mode if the temperature of the mobile terminal is greater than the second preset threshold, the method includes:
detecting whether the temperature of the mobile terminal is greater than a third preset threshold value, wherein the third preset threshold value is greater than the second preset threshold value;
and if the temperature of the mobile terminal is greater than the third preset threshold, executing a shutdown command.
The present invention also provides a mobile terminal, comprising:
the first detection module is used for detecting whether the temperature of the mobile terminal is greater than a first preset threshold value or not;
the second detection module is used for detecting whether the mobile terminal is currently in a VoLTE call state or not if the temperature of the mobile terminal is greater than the first preset threshold value;
the first switching module is used for switching the VoLTE call into a CS domain call if the mobile terminal is currently in a VoLTE call state;
and the first closing module is used for closing the 4G network after the VoLTE call is switched to the CS domain call.
Further, the mobile terminal includes:
and the second closing module is used for closing the 4G network and registering the 4G network to the 2G/3G network if the mobile terminal is not in the VoLTE call state currently.
Further, the first switching module includes:
the first sub-request module is used for initiating a switching request from a PS domain to a CS domain when the mobile terminal is currently in a VoLTE call state;
a first sub-receiving module, configured to receive a feedback for initiating a PS domain to CS domain handover request;
the first sub-establishing module is used for establishing the CS domain conversation according to the feedback of the request for initiating the PS domain to switch to the CS domain.
Further, the mobile terminal includes:
the third detection module is used for detecting whether the temperature of the mobile terminal is greater than a second preset threshold value, wherein the second preset threshold value is greater than the first preset threshold value;
and the first processing module is used for closing the 2G/3G/4G network and entering an emergency call mode if the temperature of the mobile terminal is greater than the second preset threshold value.
Further, the mobile terminal includes:
the fourth detection module is used for detecting whether the temperature of the mobile terminal is greater than a third preset threshold value, wherein the third preset threshold value is greater than the second preset threshold value;
and the second processing module is used for executing a shutdown command if the temperature of the mobile terminal is greater than the third preset threshold.
According to the technical scheme, the invention has the beneficial effects that: when the temperature of the mobile terminal is greater than a first preset threshold value and the mobile terminal is in a VOLTE call state, the VOLTE call is switched to a CS domain call without closing a 4G function, then the mobile terminal is registered to a 2G/3G network, and then the CS domain call is dialed again, aiming at solving the problem that in the existing temperature control method, the mobile terminal is currently in the VOLTE state, the temperature rises to LEVEL _2, the mobile terminal can directly close the 4G function and then is registered to the 2G/3G network, and the call is stopped.
Drawings
Fig. 1 is a flowchart of a temperature control method for a mobile terminal according to an embodiment of the present invention;
fig. 2 is a functional block diagram of a mobile terminal provided by an embodiment of the present invention;
fig. 3 is a schematic diagram of switching a VoLTE call to a CS domain call according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, an embodiment of the present invention provides a method for controlling a temperature of a mobile terminal, where the method includes the following steps:
step S101, detecting whether the temperature of the mobile terminal is larger than a first preset threshold value.
When the temperature of the mobile terminal is less than or equal to a first preset threshold value, the mobile terminal is considered to be capable of normally working in a 2G/3G/4G state, and all normal functions are supported.
When the temperature of the mobile terminal is greater than a first preset threshold value, the mobile terminal is considered to be incapable of working in the 4G state and capable of working in the 2G/3G state.
The temperature of the mobile terminal is detected, in this embodiment, the temperature inside the mobile terminal is detected, the detected temperature of the mobile terminal is compared with a first preset threshold, and whether the detected temperature of the mobile terminal is greater than the first preset threshold is determined.
Step S102, if the temperature of the mobile terminal is larger than a first preset threshold value, whether the mobile terminal is in a VoLTE call state currently is detected.
When the temperature of the mobile terminal is detected to be greater than a first preset threshold value, it is indicated that the mobile terminal needs to work in a 2G/3G state, and at this time, the mobile terminal needs to be detected again to detect whether the mobile terminal is in a VoLTE call state currently.
After step S102, the method comprises:
and if the mobile terminal is not in the VoLTE call state currently, closing the 4G network and registering to the 2G/3G network.
And if the mobile terminal is detected not to be in the VoLTE call state currently, and the situation that the user does not use the 4G network to carry out VoLTE call is shown, directly closing the 4G network and registering the 4G network to the 2G/3G network. The mobile terminal works under the 2G/3G network, and the temperature rise of the mobile terminal can be restrained because the mobile terminal enables the power consumption of the 2G/3G network to be lower than that of the 4G network.
And step S103, if the mobile terminal is in the VoLTE call state currently, switching the VoLTE call to the CS domain call.
If the fact that the mobile terminal is in the VoLTE calling state currently is detected, the fact that the user uses the 4G network to carry out VoLTE calling is indicated, if the 4G network is directly closed, the VoLTE calling is stopped, in order to improve user experience, the user calling is not influenced, the temperature rise of the mobile terminal is restrained, and the VoLTE calling is switched to CS domain calling.
In step S103, the method includes:
when the mobile terminal is in a VoLTE call state currently, initiating a switching request from a PS domain to a CS domain;
receiving feedback for initiating a request for switching from a PS domain to a CS domain;
and establishing the CS domain call according to the feedback of the request for initiating the switching from the PS domain to the CS domain.
When the mobile terminal is currently in a VoLTE call state, the mobile terminal needs to switch a 4G network to a 2G/3G network and initiate a request for switching a PS domain to a CS domain, after the request is in the state of a server, the mobile terminal receives feedback for initiating the request for switching the PS domain to the CS domain, namely the server sends the feedback for processing the switching of the PS domain to the CS domain back to the mobile terminal, and the mobile terminal establishes a CS domain call according to the feedback for initiating the request for switching the PS domain to the CS domain, so that the call of the mobile terminal is switched from the VoLTE call to the CS domain call.
As shown in fig. 3, specifically, the procedure of switching the VoLTE call to the CS domain call includes:
(1) the UE is currently in a VoLTE call state, and initiates a switching request when the monitored temperature exceeds a first preset threshold value;
(2) E-UTRAN decides to initiate switching operation after receiving UE request;
(3) after receiving the request, the MME initiates a switching request from the PS to the CS to the MSC Server;
(4) (5) (6) (7) (8) MSC Server initiates a switching request to a destination MSC, BSS and IMS to establish a circuit domain and initialize a session;
(9) (10) (11) the MSC Server, the MME and the E-UTRAN respond to the switching request from the PS to the CS;
(12) UE handover to GERAN (CS Domain);
(13) detecting Handover and preparing for switching;
(14) (15) (16) a Suspend PS domain;
(17) (18) (19) the PS switching to the CS is completed and the processing of the bearing is completed;
(20) a location update is performed and the TMSI is reacquired.
According to the process of switching the VoLTE call to the CS domain call, when the temperature of the mobile terminal is greater than the first preset threshold value, the seamless switching from the VoLTE call to the CS domain call is completed, and because the power consumption of the mobile terminal using the 2G network is lower than that of the 4G network, the temperature rise of the mobile terminal can be inhibited, and the influence on the call of the user is reduced to the minimum.
And step S104, after the VoLTE call is switched to the CS domain call, closing the 4G network.
After the VoLTE call is switched to the CS domain call, the VoLTE call is switched to the CS domain call under the 2G/3G network, and the 4G network is closed to release the VoLTE after a new call is established, so that the call interruption can not occur, and the experience of a client is improved.
After step S104, the method comprises:
detecting whether the temperature of the mobile terminal is greater than a second preset threshold value, wherein the second preset threshold value is greater than the first preset threshold value;
if the temperature of the mobile terminal is greater than a second preset threshold value; the 2G/3G/4G network is closed and the emergency call mode is entered.
And after the temperature of the mobile terminal is greater than the first preset threshold, detecting the mobile terminal again, detecting whether the temperature of the mobile terminal is greater than a second preset threshold which is greater than the first preset threshold, if the temperature of the mobile terminal is greater than the second preset threshold, which indicates that the mobile terminal is not suitable for using the 2G/3G/4G network, closing the 2G/3G/4G network, and entering an emergency call module, wherein at the moment, the mobile terminal enters the emergency call module and can only call limited telephone numbers.
If the temperature of the mobile terminal is greater than the second preset threshold value; the 2G/3G/4G network is turned off, and after the step of entering the emergency call mode, the method comprises:
detecting whether the temperature of the mobile terminal is greater than a third preset threshold value, wherein the third preset threshold value is greater than a second preset threshold value;
if the temperature of the mobile terminal is greater than a third preset threshold value; the shutdown command is executed.
And after the temperature of the mobile terminal is greater than the second preset threshold, detecting the mobile terminal again, detecting whether the temperature of the mobile terminal is greater than a third preset threshold, wherein the third preset threshold is greater than the second preset threshold, and if the temperature of the mobile terminal is greater than the third preset threshold, which indicates that the mobile terminal is not suitable for use, executing a shutdown command and shutting down the mobile terminal.
In summary, when the temperature of the mobile terminal is greater than the first preset threshold and the mobile terminal is in the VOLTE call state, the VOLTE call is switched to the CS domain call without closing the 4G function, and then the VOLTE call is registered in the 2G/3G network, and then the CS domain call is dialed again, which aims to solve the problem that in the existing temperature control method, the mobile terminal is currently in the VOLTE state, and at this time, the temperature rises to LEVEL _2, the mobile terminal directly closes the 4G function, and then the mobile terminal registers in the 2G/3G network, resulting in call termination.
As shown in fig. 2, an embodiment of the present invention provides a mobile terminal 1, where the mobile terminal 1 includes a first detection module 11, a second detection module 12, a first switching module 13, and a first shutdown module 14.
The first detecting module 11 is configured to detect whether the temperature of the mobile terminal is greater than a first preset threshold.
When the temperature of the mobile terminal is less than or equal to a first preset threshold value, the mobile terminal is considered to be capable of normally working in a 2G/3G/4G state, and all normal functions are supported.
When the temperature of the mobile terminal is greater than a first preset threshold value, the mobile terminal is considered to be incapable of working in the 4G state and capable of working in the 2G/3G state.
The temperature of the mobile terminal is detected, in this embodiment, the temperature inside the mobile terminal is detected, the detected temperature of the mobile terminal is compared with a first preset threshold, and whether the detected temperature of the mobile terminal is greater than the first preset threshold is determined.
The second detecting module 12 is configured to detect whether the mobile terminal is currently in a VoLTE call state if the temperature of the mobile terminal is greater than a first preset threshold.
When the temperature of the mobile terminal is detected to be greater than a first preset threshold value, it is indicated that the mobile terminal needs to work in a 2G/3G state, and at this time, the mobile terminal needs to be detected again to detect whether the mobile terminal is in a VoLTE call state currently.
The mobile terminal 1 includes:
and the second closing module is used for closing the 4G network and registering the 4G network to the 2G/3G network if the mobile terminal is not in the VoLTE call state currently.
And if the mobile terminal is detected not to be in the VoLTE call state currently, and the situation that the user does not use the 4G network to carry out VoLTE call is shown, directly closing the 4G network and registering the 4G network to the 2G/3G network. The mobile terminal works under the 2G/3G network, and the temperature rise of the mobile terminal can be restrained because the mobile terminal enables the power consumption of the 2G/3G network to be lower than that of the 4G network.
And the first switching module 13 is configured to switch the VoLTE call to the CS domain call if the mobile terminal is currently in the VoLTE call state.
If the fact that the mobile terminal is in the VoLTE calling state currently is detected, the fact that the user uses the 4G network to carry out VoLTE calling is indicated, if the 4G network is directly closed, the VoLTE calling is stopped, in order to improve user experience, the user calling is not influenced, the temperature rise of the mobile terminal is restrained, and the VoLTE calling is switched to CS domain calling.
The first switching module 13 includes:
the first sub-request module is used for initiating a switching request from the PS domain to the CS domain when the mobile terminal is currently in a VoLTE call state;
a first sub-receiving module, configured to receive a feedback for initiating a PS domain to CS domain handover request;
the first sub-establishing module is used for establishing the CS domain conversation according to the feedback of the request for initiating the PS domain to switch to the CS domain.
When the mobile terminal is currently in a VoLTE call state, the mobile terminal needs to switch a 4G network to a 2G/3G network and initiate a request for switching a PS domain to a CS domain, after the request is in the state of a server, the mobile terminal receives feedback for initiating the request for switching the PS domain to the CS domain, namely the server sends the feedback for processing the switching of the PS domain to the CS domain back to the mobile terminal, and the mobile terminal establishes a CS domain call according to the feedback for initiating the request for switching the PS domain to the CS domain, so that the call of the mobile terminal is switched from the VoLTE call to the CS domain call.
As shown in fig. 3, specifically, the procedure of switching the VoLTE call to the CS domain call includes:
(1) the UE is currently in a VoLTE call state, and initiates a switching request when the monitored temperature exceeds a first preset threshold value;
(2) E-UTRAN decides to initiate switching operation after receiving UE request;
(3) after receiving the request, the MME initiates a switching request from the PS to the CS to the MSC Server;
(4) (5) (6) (7) (8) MSC Server initiates a switching request to a destination MSC, BSS and IMS to establish a circuit domain and initialize a session;
(9) (10) (11) the MSC Server, the MME and the E-UTRAN respond to the switching request from the PS to the CS;
(12) UE handover to GERAN (CS Domain);
(13) detecting Handover and preparing for switching;
(14) (15) (16) a Suspend PS domain;
(17) (18) (19) the PS switching to the CS is completed and the processing of the bearing is completed;
(20) a location update is performed and the TMSI is reacquired.
According to the process of switching the VoLTE call to the CS domain call, when the temperature of the mobile terminal is greater than the first preset threshold value, the seamless switching from the VoLTE call to the CS domain call is completed, and because the power consumption of the mobile terminal using the 2G network is lower than that of the 4G network, the temperature rise of the mobile terminal can be inhibited, and the influence on the call of the user is reduced to the minimum.
And a first closing module 14, configured to close the 4G network after the VoLTE call is switched to the CS domain call.
After the VoLTE call is switched to the CS domain call, the VoLTE call is switched to the CS domain call under the 2G/3G network, and the 4G network is closed to release the VoLTE after a new call is established, so that the call interruption can not occur, and the experience of a client is improved.
The mobile terminal 1 includes:
the third detection module is used for detecting whether the temperature of the mobile terminal is greater than a second preset threshold value, wherein the second preset threshold value is greater than the first preset threshold value;
the first processing module is used for judging whether the temperature of the mobile terminal is higher than a first preset threshold value or not; the 2G/3G/4G network is closed and the emergency call mode is entered.
And after the temperature of the mobile terminal is greater than the first preset threshold, detecting the mobile terminal again, detecting whether the temperature of the mobile terminal is greater than a second preset threshold which is greater than the first preset threshold, if the temperature of the mobile terminal is greater than the second preset threshold, which indicates that the mobile terminal is not suitable for using the 2G/3G/4G network, closing the 2G/3G/4G network, and entering an emergency call module, wherein at the moment, the mobile terminal enters the emergency call module and can only call limited telephone numbers.
The mobile terminal 1 includes:
the fourth detection module is used for detecting whether the temperature of the mobile terminal is greater than a third preset threshold value, wherein the third preset threshold value is greater than the second preset threshold value;
the second processing module is used for judging whether the temperature of the mobile terminal is higher than a third preset threshold value; the shutdown command is executed.
And after the temperature of the mobile terminal is greater than the second preset threshold, detecting the mobile terminal again, detecting whether the temperature of the mobile terminal is greater than a third preset threshold, wherein the third preset threshold is greater than the second preset threshold, and if the temperature of the mobile terminal is greater than the third preset threshold, which indicates that the mobile terminal is not suitable for use, executing a shutdown command and shutting down the mobile terminal.
In summary, when the temperature of the mobile terminal is greater than the first preset threshold and the mobile terminal is in the VOLTE call state, the VOLTE call is switched to the CS domain call without closing the 4G function, and then the VOLTE call is registered in the 2G/3G network, and then the CS domain call is dialed again, which aims to solve the problem that in the existing temperature control method, the mobile terminal is currently in the VOLTE state, and at this time, the temperature rises to LEVEL _2, the mobile terminal directly closes the 4G function, and then the mobile terminal registers in the 2G/3G network, resulting in call termination.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A temperature control method for a mobile terminal is characterized by comprising the following steps:
detecting whether the temperature of the mobile terminal is greater than a first preset threshold value or not;
if the temperature of the mobile terminal is greater than the first preset threshold value, detecting whether the mobile terminal is in a VoLTE call state currently;
if the mobile terminal is in a VoLTE call state currently, switching the VoLTE call to a CS domain call;
after the VoLTE call is switched to the CS domain call, closing the 4G network;
after the step of detecting whether the mobile terminal is currently in a VoLTE call state if the temperature of the mobile terminal is greater than the first preset threshold, the method includes:
and if the mobile terminal is not in the VoLTE call state currently, closing the 4G network and registering to the 2G/3G network.
2. The method for controlling temperature of a mobile terminal according to claim 1, wherein the step of switching the VoLTE call to the CS domain call if the mobile terminal is currently in the VoLTE call state comprises:
when the mobile terminal is in a VoLTE call state currently, initiating a switching request from a PS domain to a CS domain;
receiving feedback for initiating a request for switching from a PS domain to a CS domain;
and establishing the CS domain call according to the feedback of the request for initiating the switching from the PS domain to the CS domain.
3. The method for controlling the temperature of the mobile terminal according to claim 1, wherein after the step of closing the 4G network after the VoLTE call is switched to the CS domain call, the method comprises:
detecting whether the temperature of the mobile terminal is greater than a second preset threshold value, wherein the second preset threshold value is greater than the first preset threshold value;
and if the temperature of the mobile terminal is greater than the second preset threshold value, closing the 2G/3G/4G network and entering an emergency call mode.
4. The method for controlling temperature of a mobile terminal according to claim 3, wherein after the step of turning off a 2G/3G/4G network and entering an emergency call mode if the temperature of the mobile terminal is greater than the second preset threshold, the method comprises:
detecting whether the temperature of the mobile terminal is greater than a third preset threshold value, wherein the third preset threshold value is greater than the second preset threshold value;
and if the temperature of the mobile terminal is greater than the third preset threshold, executing a shutdown command.
5. A mobile terminal, characterized in that the mobile terminal comprises:
the first detection module is used for detecting whether the temperature of the mobile terminal is greater than a first preset threshold value or not;
the second detection module is used for detecting whether the mobile terminal is currently in a VoLTE call state or not if the temperature of the mobile terminal is greater than the first preset threshold value;
the first switching module is used for switching the VoLTE call into a CS domain call if the mobile terminal is currently in a VoLTE call state;
the first closing module is used for closing the 4G network after the VoLTE call is switched to the CS domain call;
the mobile terminal includes:
and the second closing module is used for closing the 4G network and registering the 4G network to the 2G/3G network if the mobile terminal is not in the VoLTE call state currently.
6. The mobile terminal of claim 5, wherein the first switching module comprises:
the first sub-request module is used for initiating a switching request from a PS domain to a CS domain when the mobile terminal is currently in a VoLTE call state;
a first sub-receiving module, configured to receive a feedback for initiating a PS domain to CS domain handover request;
the first sub-establishing module is used for establishing the CS domain conversation according to the feedback of the request for initiating the PS domain to switch to the CS domain.
7. The mobile terminal according to claim 5, wherein the mobile terminal comprises:
the third detection module is used for detecting whether the temperature of the mobile terminal is greater than a second preset threshold value, wherein the second preset threshold value is greater than the first preset threshold value;
and the first processing module is used for closing the 2G/3G/4G network and entering an emergency call mode if the temperature of the mobile terminal is greater than the second preset threshold value.
8. The mobile terminal according to claim 7, wherein the mobile terminal comprises:
the fourth detection module is used for detecting whether the temperature of the mobile terminal is greater than a third preset threshold value, wherein the third preset threshold value is greater than the second preset threshold value;
and the second processing module is used for executing a shutdown command if the temperature of the mobile terminal is greater than the third preset threshold.
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