CN113115483B

CN113115483B - Method and device for releasing radio resource control connection and user equipment

Info

Publication number: CN113115483B
Application number: CN202110438402.XA
Authority: CN
Inventors: 孙宇
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2021-04-22
Filing date: 2021-04-22
Publication date: 2022-09-16
Anticipated expiration: 2041-04-22
Also published as: CN113115483A

Abstract

The embodiment of the application provides a method, a device and user equipment for releasing Radio Resource Control (RRC) connection, wherein in the method, after receiving a call request of a network side for a non-data card, UE establishes RRC connection between the non-data card and the network side, then starts a preset first timer, and after the first timer is overtime, if the non-data card does not perform an IMS service and the RRC connection is not released, the RRC connection is locally released, and the timing duration of the first timer is updated to a first updating duration; the first updating time length is determined according to the first updating factor and the first starting time length. Therefore, when the non-data card does not carry out the IMS service, the RRC connection between the non-data card and the network side can be released as soon as possible, and in the method, the timing duration of the first timer is dynamically adjusted, so that the network behavior can be highly matched, and the normal IMS service can be protected to be smoothly carried out.

Description

Method and device for releasing radio resource control connection and user equipment

[ technical field ] A method for producing a semiconductor device

The embodiment of the application relates to the technical field of communication, in particular to a method and a device for releasing radio resource control connection and user equipment.

[ background ] A method for producing a semiconductor device

In the dual-card dual-standby single-pass mode, only one card can be used for data service, which is called a data card, and the other card can be used for voice service, which is called a non-data card.

When the services of the two cards conflict, the priority of the voice service is higher than that of the data service, and the data service of the other card can be interrupted at any time. While one card is performing voice traffic, data and voice traffic of the other card cannot be performed.

The voice service under the New Radio (NR) may only be an IP Multimedia Subsystem (IMS) service, but for a called party, when a call request (paging) is received and the called party enters a connected state, it is impossible to distinguish whether the call request is a voice service or a data service, and it is necessary to wait for a period of network interaction to know that the call request is an IMS service. For a non-data card, it is assumed that only voice service can be performed, and therefore after receiving a paging, it needs to identify that the IMS service is an IMS service, and must access the IMS service according to the priority of the voice service to enter a connection state, so as to interrupt the data service of another card.

However, in one case, the paging received by the non-data card may be some abnormal situations occurring in the network, and is not an IMS voice service, so that the non-data card performs a voice service, and the data card cannot perform a service, resulting in poor user experience.

Another situation is that after the non-data card completes the IMS voice service, the network does not release Radio Resource Control (RRC) connection at a later time, and the User Equipment (UE) cannot release the RRC connection in another manner specified by the protocol, so that the RRC connection occupies resources for a long time due to the non-voice service, and the data card cannot perform the service, resulting in poor user experience.

[ summary of the invention ]

The embodiment of the application provides a method and a device for releasing radio resource control connection and user equipment, so that when a non-data card does not perform an IMS service, RRC connection between the non-data card and a network side is released as soon as possible, an invalid connection state of the non-data card is ended as soon as possible, and standby and services of the data card are recovered as soon as possible.

In a first aspect, an embodiment of the present application provides a method for releasing a radio resource control connection, including: after receiving a call request of a network side for a non-data card in the user equipment, the user equipment establishes radio resource control connection between the non-data card and the network side; starting a first timer preset in the user equipment, wherein the timing duration of the first timer is a first starting duration; after the first timer is overtime, if the non-data card does not carry out IP Multimedia Subsystem (IMS) service and the radio resource control connection is not released, locally releasing the radio resource control connection and updating the timing duration of the first timer to a first updating duration; wherein the first update duration is determined according to a first update factor and the first start duration.

In the method for releasing radio resource control connection, after receiving a call request of a network side for a non-data card in the UE, the UE establishes RRC connection between the non-data card and the network side, then the UE starts a first timer preset in the UE, and after the first timer is overtime, if the non-data card does not perform IMS service and the RRC connection is not released, the UE locally releases the RRC connection and updates the timing duration of the first timer to a first updating duration; the first updating time length is determined according to a first updating factor and a first starting time length. Therefore, when the non-data card does not carry out the IMS service, the RRC connection between the non-data card and the network side can be released as soon as possible, the invalid connection state of the non-data card can be ended as soon as possible, and the standby state and the service of the data card can be recovered as soon as possible. In addition, in the method, the timing duration of the first timer is dynamically adjusted, so that the behavior of the network can be highly matched, the normal IMS service is protected to be smoothly performed, and the influence of abnormal RRC connection is eliminated.

In one possible implementation manner, after the starting of the first timer preset in the user equipment, the method further includes: before the first timer is overtime, the user equipment interacts with the network side through the non-data card to determine that the call request is an IMS service; acquiring a first current moment and the establishment moment of the radio resource control connection; determining a first time length between a first current time and the establishment time, and stopping the first timer; updating the timing duration of the first timer to a second updating duration; the second updating time length is determined according to a second updating factor, the first time length and the first starting time length.

In one possible implementation manner, after the starting of the first timer preset in the user equipment, the method further includes: before the first timer is overtime, if the user equipment does not determine that the call request is an IMS service and the radio resource control connection is released, the user equipment acquires a second current time and the establishment time of the radio resource control connection; determining a second time length between a second current time and the establishment time, and stopping the first timer; updating the timing duration of the first timer to a third updating duration; wherein the third update duration is determined according to a third update factor, the second time length, and the first start duration.

In one possible implementation manner, after determining that the call request is an IMS service, the method further includes: after the IMS service is finished, the user equipment starts a second timer preset in the user equipment, wherein the timing duration of the second timer is a second starting duration; after the second timer is overtime, if the radio resource control connection is not released and the non-data card does not perform a new IMS service, locally releasing the radio resource control connection and updating the timing duration of the second timer to a fourth updating duration; wherein the fourth update duration is determined according to a fourth update factor and the second start duration.

In one possible implementation manner, after the ue starts a second timer preset in the ue, the method further includes: before the second timer is overtime, if the radio resource control connection is not released and the non-data card carries out new IMS service again, stopping the second timer; updating the timing duration of the second timer to a fifth updating duration; wherein the fifth update duration is determined according to a fifth update factor and the second start duration.

In one possible implementation manner, after the ue starts a second timer preset in the ue, the method further includes: before the second timer is overtime, if the non-data card does not perform a new IMS service and the radio resource control connection is released, the user equipment acquires a third current time and the establishment time of the radio resource control connection; determining a third time length between a third current time and the setup time, and stopping the second timer; updating the timing duration of the second timer to a sixth updating duration; and the sixth updating time length is determined according to a sixth updating factor, the third time length and the second starting time length.

In one possible implementation manner, after the establishing the radio resource control connection between the non-data card and the network side, the method further includes: the user equipment stores the public land mobile network and the tracking area code of the current cell; and if the UE detects that the public land mobile network and the tracking area code of the current cell are updated, updating the timing duration of the first timer according to a seventh updating factor, and updating the timing duration of the second timer according to an eighth updating factor.

In a second aspect, an embodiment of the present application provides an apparatus for releasing a radio resource control connection, where the apparatus is disposed in a user equipment, and the apparatus includes: the receiving module is used for receiving a call request of a network side for a non-data card in the user equipment; the establishing module is used for establishing wireless resource control connection between the non-data card and the network side after the receiving module receives the call request; the starting module is used for starting a first timer preset in the user equipment, and the timing duration of the first timer is a first starting duration; a releasing module, configured to, after the first timer expires, locally release the radio resource control connection if the non-data card does not perform an IP multimedia subsystem IMS service and the radio resource control connection is not released; the updating module is used for updating the timing duration of the first timer into a first updating duration; wherein the first update duration is determined according to a first update factor and the first start duration.

In one possible implementation manner, the apparatus further includes: a determining module, configured to interact with the network side through the non-data card after the starting module starts a first timer and before the first timer times out, and determine that the call request is an IMS service; an obtaining module, configured to obtain a first current time and a time of establishing the radio resource control connection; the determining module is further configured to determine a first time length between a first current time and the establishing time; a stopping module for stopping the first timer; the updating module is further configured to update the timing duration of the first timer to a second updating duration; and the second updating time length is determined according to a second updating factor, the first time length and the first starting time length.

In one possible implementation manner, the apparatus further includes: an obtaining module, configured to obtain a second current time and a time of establishing the radio resource control connection if the ue has not determined that the call request is an IMS service and the radio resource control connection is released after the starting module starts a first timer and before the first timer expires; a determining module, configured to determine a second time length between a second current time and the establishing time; a stopping module for stopping the first timer; the updating module is further configured to update the timing duration of the first timer to a third updating duration; wherein the third update duration is determined according to a third update factor, the second time length, and the first start duration.

In one possible implementation manner, the starting module is further configured to start a second timer preset in the user equipment after the determining module determines that the call request is an IMS service and after the IMS service is ended, where a timing duration of the second timer is a second starting duration; the releasing module is further configured to, after the second timer expires, locally release the radio resource control connection if the radio resource control connection is not released and the non-data card does not perform a new IMS service; the updating module is further configured to update the timing duration of the second timer to a fourth updating duration; wherein the fourth update duration is determined based on a fourth update factor and the second start duration.

In one possible implementation manner, the stopping module is further configured to, after the starting module starts the second timer and before the second timer expires, stop the second timer if the radio resource control connection is not released and the non-data card performs a new IMS service again; the updating module is further configured to update the timing duration of the second timer to a fifth updating duration; wherein the fifth update duration is determined according to a fifth update factor and the second start duration.

In one possible implementation manner, the obtaining module is further configured to, after the starting module starts a second timer and before the second timer expires, if the non-data card does not perform a new IMS service and the radio resource control connection is released, obtain a third current time and a time of establishing the radio resource control connection; the determining module is further configured to determine a third time length between a third current time and the establishing time; the stopping module is further configured to stop the second timer; the updating module is further configured to update the timing duration of the second timer to a sixth updating duration; and the sixth updating time length is determined according to a sixth updating factor, the third time length and the second starting time length.

In one possible implementation manner, the apparatus further includes: a storage module, configured to store a public land mobile network and a tracking area code of a current cell after the establishment module establishes a radio resource control connection between the non-data card and the network side; the updating module is further configured to update the timing duration of the first timer according to a seventh updating factor and update the timing duration of the second timer according to an eighth updating factor when the ue detects that the plmn and tracking area code of the current cell are updated.

In a third aspect, an embodiment of the present application provides a user equipment, including: at least one processor; and at least one memory communicatively coupled to the processor, wherein: the memory stores program instructions executable by the processor, the processor calling the program instructions to be able to perform the method provided by the first aspect.

In a fourth aspect, embodiments of the present application provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the method provided in the first aspect.

It should be understood that the second to fourth aspects of the embodiment of the present application are consistent with the technical solution of the first aspect of the embodiment of the present application, and beneficial effects obtained by the aspects and the corresponding possible implementation are similar, and are not described again.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a flowchart of a method for releasing a radio resource control connection according to an embodiment of the present application;

fig. 2 is a flowchart of a method for releasing a rrc connection according to another embodiment of the present application;

fig. 3 is a schematic structural diagram of an apparatus for releasing an rrc connection according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a device for releasing an rrc connection according to another embodiment of the present application;

fig. 5 is a schematic structural diagram of a user equipment according to an embodiment of the present application.

[ detailed description ] embodiments

For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.

It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

In the prior art, under a dual-card dual-standby single-pass mode, a non-data card occupies RRC connection, and the data card cannot perform data and voice services. In view of the above problems, one solution provided in the prior art is to adhere to the protocol, wait for the network to release the RRC connection normally, or follow other manners specified by the protocol, such as: after a media access control data inactivity timer (MAC data inactivity timer) times out, the local connection is released. However, this may cause standby and traffic of another card to be affected.

Another solution provided in the prior art is to set a fixed waiting duration, and if the network has no effective IMS interaction within this waiting duration, the UE locally releases the RRC connection. However, if the waiting time is long, standby and service of another card may be affected, and user experience may be affected; if the waiting time is short, it cannot be excluded that the network just prepares to send some IMS data at this time, which may cause the called service of the non-data card to fail.

Based on the above problems, embodiments of the present application provide a method for releasing radio resource control connection, which obtains a timing duration of a current timer based on a calculation method. The timing duration is related to the historical behavior of the network, Public Land Mobile Network (PLMN) and Tracking Area Code (TAC) of the network, and is also dynamically adjusted, so that the behavior of the network can be highly matched, normal IMS service can be protected from being performed smoothly, and the influence of abnormal RRC connection can be eliminated.

Fig. 1 is a flowchart of a method for releasing a radio resource control connection according to an embodiment of the present application, and as shown in fig. 1, the method for releasing an RRC connection may include:

step 101, after receiving a call request of a network side for a non-data card in the UE, the UE establishes an RRC connection between the non-data card and the network side.

Step 102, the UE starts a first timer preset in the UE. Step 103, step 104 or step 108 is then performed.

The timing duration of the first timer is a first starting duration.

Specifically, the first start-up time period may be calculated according to equation (1).

First start-up period T1+ alpha 1 (1)

In the formula (1), T1 is the initial duration of the first timer, and α 1 is the guard duration. In specific implementation, T1 may be set when the first timer is set, the size of T1 may be set according to system performance and/or implementation requirements, and the size of T1 is not limited in this embodiment; similarly, the size of α 1 may be set according to system performance and/or implementation requirements, and the size of α 1 is not limited in this embodiment.

Step 103, after the first timer is overtime, if the non-data card does not perform the IMS service and the RRC connection is not released, the UE locally releases the RRC connection and updates the timing duration of the first timer to a first update duration; the first updating time length is determined according to a first updating factor and a first starting time length.

Specifically, the determination of the first update duration according to the first update factor and the first start duration may be: the first update duration is determined according to equation (2).

First update duration ═ β 1 × first start duration (2)

In the formula (2), β 1 is a first update factor.

Wherein the RRC connection not being released may include: the network side does not release the RRC connection, or the UE does not locally release the RRC connection according to the protocol.

And step 104, before the first timer is overtime, the UE interacts with the network side through a non-data card to determine that the call request is the IMS service.

Step 105, the UE obtains the first current time and the time of establishing the RRC connection.

Step 106, the UE determines a first time length between the first current time and the establishment time, and stops the first timer.

Specifically, the UE determines that the first time length between the first current time and the establishment time may be: the UE calculates a time difference between the first current time and the establishment time, and uses the time difference as the first time length.

Step 107, the UE updates the timing duration of the first timer to a second updating duration; and the second updating time length is determined according to a second updating factor, the first time length and the first starting time length.

Specifically, the determining of the second update duration according to the second update factor, the first time length, and the first start duration may be: the second update time period is determined according to equation (3).

Second update period γ 1 × first start period + (1- γ 1) × first time length (3)

In the formula (3), γ 1 is a second update factor.

Step 108, before the first timer is overtime, if the UE has not determined that the call request is the IMS service and the RRC connection is released, the UE acquires the second current time and the time of establishing the RRC connection.

Wherein, the RRC connection is released as: the network side sends an RRC Release (RRC Release) message to the UE, and the UE releases the RRC connection according to the RRC Release message; or the UE locally releases the RRC connection according to a protocol.

Step 109, the UE determines a second time length between the second current time and the aforementioned establishment time, and stops the first timer.

Specifically, the UE determines that the second time length between the second current time and the establishment time may be: the UE calculates a time difference between the second current time and the establishment time, and takes the time difference as the second time length.

Step 110, the UE updates the timing duration of the first timer to a third update duration; and the third updating time length is determined according to a third updating factor, the second time length and the first starting time length.

Specifically, the determination of the third update duration according to the third update factor, the second time length, and the first start duration may be: the third update time period is determined according to equation (4).

The third update period δ 1 × the first start period + (1- δ 1) × the second time period (4)

In the formula (4), δ 1 is a third update factor.

In the method for releasing the radio resource control connection, after receiving a call request of a network side for a non-data card in the UE, the UE establishes RRC connection between the non-data card and the network side, then the UE starts a first timer preset in the UE, and after the first timer is overtime, if the non-data card does not perform IMS service and the RRC connection is not released, the UE locally releases the RRC connection and updates the timing duration of the first timer to a first updating duration; the first updating time length is determined according to a first updating factor and a first starting time length. Therefore, when the non-data card does not carry out IMS service, the RRC connection between the non-data card and the network side can be released as soon as possible, the invalid connection state of the non-data card can be ended as soon as possible, and the standby state and the service of the data card can be recovered as soon as possible. In addition, in the method, the timing duration of the first timer is dynamically adjusted, so that the behavior of the network can be highly matched, the normal IMS service is protected to be smoothly performed, and the influence of abnormal RRC connection is eliminated.

Fig. 2 is a flowchart of a method for releasing a radio resource control connection according to another embodiment of the present application, as shown in fig. 2, in the embodiment shown in fig. 1 of the present application, after step 104, the method may further include:

step 201, after the IMS service is finished, the UE starts a second timer preset in the UE. Step 202, step 203 or step 205 is then performed.

And the timing duration of the second timer is a second starting duration.

Specifically, the second start-up time period may be calculated according to equation (5).

Second start-up period T2+ α 2 (5)

In equation (5), T2 is the initial duration of the second timer, and α 2 is the guard duration. In specific implementation, T2 may be set when the second timer is set, the size of T2 may be set according to system performance and/or implementation requirements, and the size of T2 is not limited in this embodiment; similarly, the size of α 2 may be set according to system performance and/or implementation requirements, and the size of α 2 is not limited in this embodiment.

Step 202, after the second timer expires, if the RRC connection is not released and the non-data card does not perform a new IMS service, locally releasing the RRC connection and updating the timing duration of the second timer to a fourth update duration; and the fourth updating time length is determined according to a fourth updating factor and the second starting time length.

Specifically, the determination of the fourth update duration according to the fourth update factor and the second start duration may be: the fourth update duration is determined according to equation (6).

Fourth update duration ═ β 2 × second activation duration (6)

In the formula (6), β 2 is a fourth update factor.

Specifically, the unreleased RRC connection may include: the network side does not release the RRC connection, or the UE does not locally release the RRC connection according to the protocol.

Step 203, before the second timer times out, if the RRC connection is not released and the non-data card performs a new IMS service again, the UE stops the second timer.

Specifically, the RRC connection not being released may include: the network side does not release the RRC connection, or the UE does not locally release the RRC connection according to the protocol.

Step 204, the UE updates the timing duration of the second timer to a fifth updating duration.

And the fifth updating time length is determined according to a fifth updating factor and the second starting time length.

Specifically, the fifth update duration determined according to the fifth update factor and the second start duration may be: the fifth update duration is determined according to equation (7).

The fifth update period γ 2 × the second start period (7)

In the formula (7), γ 2 is a fifth update factor.

Step 205, before the second timer times out, if the non-data card does not perform a new IMS service and the RRC connection is released, the UE acquires a third current time and a time of establishing the RRC connection.

Wherein, the RRC connection is released as: the network side sends an RRC release message to the UE, and the UE releases the RRC connection according to the RRC release message; or the UE locally releases the RRC connection according to the protocol.

In step 206, the UE determines a third time length between the third current time and the establishment time, and stops the second timer.

Specifically, the UE may determine that the third time length between the third current time and the establishment time may be: the UE calculates a time difference between the third current time and the setup time, and uses the time difference as the third time length.

In step 207, the UE updates the timing duration of the second timer to a sixth update duration.

And the sixth updating time length is determined according to a sixth updating factor, the third time length and the second starting time length.

Specifically, the sixth update duration may be determined according to a sixth update factor, the third time length, and the second start duration by: the sixth update period is determined according to equation (8).

A sixth update period δ 2 × second start period + (1- δ 2) × third time period (8)

In equation (8), δ 2 is the sixth update factor.

The method for releasing the radio resource control connection can release the RRC connection between the non-data card and the network side as soon as possible when the non-data card does not carry out the IMS service, end the invalid connection state of the non-data card as soon as possible and recover the standby state and the service of the data card as soon as possible. In addition, in the method, the timing duration of the second timer is dynamically adjusted, so that the behavior of the network can be highly matched, the normal IMS service is protected to be smoothly performed, and the influence of abnormal RRC connection is eliminated.

In the embodiment shown in fig. 1 and fig. 2 of the present application, after step 101, the UE may further store the PLMN and TAC of the current cell; and if the UE detects that the PLMN and the TAC of the current cell are updated, updating the timing duration of the first timer according to the seventh updating factor, and updating the timing duration of the second timer according to the eighth updating factor.

Specifically, in the embodiment of the present application, in consideration of differences between different network equipment providers, if the PLMN and the TAC of the current cell are updated, the timing duration of the first timer needs to be updated according to equation (9), and the timing duration of the second timer needs to be updated according to equation (10).

The timing duration of the first timer is equal to the first starting duration + epsilon 1 (9)

The timing duration of the second timer is equal to the second starting duration + epsilon 2 (10)

In the formula (9), epsilon 1 is a seventh update factor; in equation (10), ε 2 is the eighth update factor.

The timing duration of the first timer and the timing duration of the second timer, as well as the corresponding PLMN and TAC, are all stored in a non-volatile memory (NV) so as to be used when the UE is powered on next time.

In the embodiment of the present application, the first update factor to the eighth update factor may be set according to implementation requirements and/or system performance during specific implementation, and the size of the first update factor to the eighth update factor is not limited in this embodiment.

The foregoing description of specific embodiments of the present application has been presented. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.

Fig. 3 is a schematic structural diagram of a device for releasing a radio resource control connection according to an embodiment of the present application, where the device for releasing a radio resource control connection is disposed in a UE, and as shown in fig. 3, the device for releasing a radio resource control connection may include: a receiving module 31, an establishing module 32, a starting module 33, a releasing module 34 and an updating module 35;

the receiving module 31 is configured to receive a call request of a network side for a non-data card in the UE;

an establishing module 32, configured to establish an RRC connection between the non-data card and the network side after the receiving module 31 receives the call request;

a starting module 33, configured to start a first timer preset in the UE, where a timing duration of the first timer is a first starting duration;

a releasing module 34, configured to, after the first timer expires, if the non-data card does not perform the IMS service and the RRC connection is not released, locally release the RRC connection;

an updating module 35, configured to update the timing duration of the first timer to a first updating duration; the first updating time length is determined according to a first updating factor and a first starting time length.

The apparatus for releasing rrc connection provided in the embodiment shown in fig. 3 may be used to implement the technical solution of the embodiment of the method shown in fig. 1 of the present application, and further refer to the relevant description in the embodiment of the method.

Fig. 4 is a schematic structural diagram of a device for releasing a radio resource control connection according to another embodiment of the present application, where compared with the device for releasing a radio resource control connection shown in fig. 3, the device for releasing a radio resource control connection shown in fig. 4 may further include: a determination module 36, an acquisition module 37, and a stop module 38;

in an implementation manner of this embodiment, the determining module 36 is configured to, after the starting module 33 starts the first timer and before the first timer times out, interact with the network side through a non-data card to determine that the call request is an IMS service;

an obtaining module 37, configured to obtain a first current time and a time for establishing the RRC connection;

a determining module 36, further configured to determine a first time length between a first current time and the establishing time;

a stopping module 38, configured to stop the first timer;

the updating module 35 is further configured to update the timing duration of the first timer to a second updating duration; and the second updating time length is determined according to a second updating factor, the first time length and the first starting time length.

In another implementation manner, the obtaining module 37 is configured to, after the starting module 33 starts the first timer and before the first timer expires, if the UE has not determined that the call request is the IMS service and the RRC connection is released, obtain a second current time and a time for establishing the RRC connection;

a determining module 36, configured to determine a second time length between a second current time and the establishing time;

a stopping module 38 for stopping the first timer;

the updating module 35 is further configured to update the timing duration of the first timer to a third updating duration; and the third updating time length is determined according to a third updating factor, the second time length and the first starting time length.

In another implementation manner, the starting module 33 is further configured to start a second timer preset in the UE after the determining module 36 determines that the call request is the IMS service and after the IMS service is ended, where a timing duration of the second timer is a second starting duration;

a releasing module 34, further configured to, after the second timer expires, locally release the RRC connection if the RRC connection is not released and a non-data card does not perform a new IMS service;

the updating module 35 is further configured to update the timing duration of the second timer to a fourth update duration; and the fourth updating time length is determined according to a fourth updating factor and the second starting time length.

In another implementation, the stopping module 38 is further configured to, after the starting module 33 starts the second timer and before the second timer expires, stop the second timer if the RRC connection is not released and the non-data card performs a new IMS service again;

the updating module 35 is further configured to update the timing duration of the second timer to a fifth updating duration; and the fifth updating time length is determined according to a fifth updating factor and the second starting time length.

In another implementation, the obtaining module 37 is further configured to, after the starting module 33 starts the second timer and before the second timer expires, if the non-data card does not perform a new IMS service and the RRC connection is released, obtain a third current time and a time of establishing the RRC connection;

the determining module 36 is further configured to determine a third time length between a third current time and the establishing time;

a stopping module 38, further configured to stop the second timer;

the updating module 35 is further configured to update the timing duration of the second timer to a sixth updating duration; and the sixth updating time length is determined according to a sixth updating factor, the third time length and the second starting time length.

Further, the apparatus for releasing rrc connection may further include: a saving module 39;

a saving module 39, configured to save the PLMN and TAC of the current cell after the establishing module 32 establishes RRC connection between the non-data card and the network side;

the updating module 35 is further configured to update the timing duration of the first timer according to the seventh update factor and update the timing duration of the second timer according to the eighth update factor when the UE detects that the PLMN and the TAC of the current cell are updated.

The apparatus for releasing rrc connection provided in the embodiment shown in fig. 4 can be used to implement the technical solutions of the method embodiments shown in fig. 1 to fig. 2 of the present application, and the implementation principles and technical effects of the technical solutions can be further described with reference to the related description in the method embodiments.

Fig. 5 is a schematic structural diagram of a user equipment according to an embodiment of the present application, and as shown in fig. 5, the UE may include at least one processor; and at least one memory communicatively coupled to the processor, wherein: the memory stores program instructions executable by the processor, and the processor invokes the program instructions to perform the method for releasing rrc connection according to the embodiments of fig. 1 to 2.

The UE may be an intelligent terminal device such as a smart phone, a smart watch, or a tablet computer, and the form of the UE is not limited in this embodiment.

Exemplarily, fig. 5 illustrates a schematic structure of a UE by taking a smart phone as an example, as shown in fig. 5, the UE100 may include a processor 110, an external memory interface 120, an internal memory 121, a Universal Serial Bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a button 190, a motor 191, an indicator 192, a camera 193, a display 194, and a Subscriber Identity Module (SIM) card interface 195.

It is to be understood that the illustrated structure of the embodiment of the present application does not constitute a specific limitation to the UE 100. In other embodiments of the present application, the UE100 may include more or fewer components than shown, or combine certain components, or split certain components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

Processor 110 may include one or more processing units, such as: the processor 110 may include an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), etc. The different processing units may be separate devices or may be integrated into one or more processors.

The controller can generate an operation control signal according to the instruction operation code and the timing signal to complete the control of instruction fetching and instruction execution.

A memory may also be provided in processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that have just been used or recycled by the processor 110. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. Avoiding repeated accesses reduces the latency of the processor 110, thereby increasing the efficiency of the system.

The processor 110 executes various functional applications and data processing by running programs stored in the internal memory 121, for example, implementing the method for releasing the rrc connection according to the embodiments shown in fig. 1 to 2.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an integrated circuit (I2C) interface, an integrated circuit built-in audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, a Subscriber Identity Module (SIM) interface, and/or a Universal Serial Bus (USB) interface, etc.

The charging management module 140 is configured to receive charging input from a charger. The charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 may receive charging input from a wired charger via the USB interface 130. In some wireless charging embodiments, the charging management module 140 may receive a wireless charging input through a wireless charging coil of the UE 100. The charging management module 140 may also supply power to the UE100 through the power management module 141 while charging the battery 142.

The power management module 141 is used to connect the battery 142, the charging management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charge management module 140, and supplies power to the processor 110, the internal memory 121, the display 194, the camera 193, the wireless communication module 160, and the like. The power management module 141 may also be used to monitor parameters such as battery capacity, battery cycle count, battery state of health (leakage, impedance), etc. In some other embodiments, the power management module 141 may also be disposed in the processor 110. In other embodiments, the power management module 141 and the charging management module 140 may be disposed in the same device.

The wireless communication function of the UE100 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, a modem processor, a baseband processor, and the like.

The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the UE100 may be used to cover a single or multiple communication bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 may provide a solution including wireless communication of 2G/3G/4G/5G, etc. applied on the UE 100. The mobile communication module 150 may include at least one filter, a switch, a power amplifier, a Low Noise Amplifier (LNA), and the like. The mobile communication module 150 may receive the electromagnetic wave from the antenna 1, filter, amplify, etc. the received electromagnetic wave, and transmit the electromagnetic wave to the modem processor for demodulation. The mobile communication module 150 may also amplify the signal modulated by the modem processor, and convert the signal into electromagnetic wave through the antenna 1 to radiate the electromagnetic wave. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the same device as at least some of the modules of the processor 110.

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

The wireless communication module 160 may provide solutions for wireless communication applied to the UE100, including Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), Bluetooth (BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), and the like. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, performs frequency modulation and filtering on electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, perform frequency modulation and amplification on the signal, and convert the signal into electromagnetic waves through the antenna 2 to radiate the electromagnetic waves.

In some embodiments, antenna 1 of UE100 is coupled to mobile communication module 150 and antenna 2 is coupled to wireless communication module 160 so that UE100 can communicate with networks and other devices via wireless communication techniques. The wireless communication technology may include global system for mobile communications (GSM), General Packet Radio Service (GPRS), code division multiple access (code division multiple access, CDMA), Wideband Code Division Multiple Access (WCDMA), time-division code division multiple access (time-division code division multiple access, TD-SCDMA), Long Term Evolution (LTE), LTE, BT, GNSS, WLAN, NFC, FM, and/or IR technologies, etc. The GNSS may include a Global Positioning System (GPS), a global navigation satellite system (GLONASS), a beidou navigation satellite system (BDS), a quasi-zenith satellite system (QZSS), and/or a Satellite Based Augmentation System (SBAS).

The UE100 implements display functions via the GPU, the display screen 194, and the application processor. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and an application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 110 may include one or more GPUs that execute program instructions to generate or alter display information.

The display screen 194 is used to display images, video, and the like. The display screen 194 includes a display panel. The display panel may adopt a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED), a flexible light-emitting diode (FLED), a miniature, a Micro-oeld, a quantum dot light-emitting diode (QLED), and the like. In some embodiments, the UE100 may include 1 or N display screens 194, with N being a positive integer greater than 1.

The UE100 may implement a photographing function through the ISP, the camera 193, the video codec, the GPU, the display screen 194, and the application processor, etc.

The ISP is used to process the data fed back by the camera 193. For example, when a photo is taken, the shutter is opened, light is transmitted to the camera photosensitive element through the lens, the optical signal is converted into an electrical signal, and the camera photosensitive element transmits the electrical signal to the ISP for processing and converting into an image visible to naked eyes. The ISP can also carry out algorithm optimization on the noise, brightness and skin color of the image. The ISP can also optimize parameters such as exposure, color temperature and the like of a shooting scene. In some embodiments, the ISP may be provided in camera 193.

The camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects the optical image to the photosensitive element. The photosensitive element may be a Charge Coupled Device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The light sensing element converts the optical signal into an electrical signal, which is then passed to the ISP where it is converted into a digital image signal. And the ISP outputs the digital image signal to the DSP for processing. The DSP converts the digital image signal into an image signal in a standard RGB, YUV and other formats. In some embodiments, the UE100 may include 1 or N cameras 193, N being a positive integer greater than 1.

The digital signal processor is used for processing digital signals, and can process digital image signals and other digital signals. For example, when the UE100 selects a frequency bin, the digital signal processor is used to perform fourier transform or the like on the frequency bin energy.

Video codecs are used to compress or decompress digital video. The UE100 may support one or more video codecs. As such, the UE100 may play or record video in a variety of encoding formats, such as: moving Picture Experts Group (MPEG) 1, MPEG2, MPEG3, MPEG4, and the like.

The NPU is a neural-network (NN) computing processor that processes input information quickly by using a biological neural network structure, for example, by using a transfer mode between neurons of a human brain, and can also learn by itself continuously. The NPU can implement applications such as intelligent cognition of the UE100, for example: image recognition, face recognition, speech recognition, text understanding, and the like.

The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to extend the storage capability of the UE 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. For example, files such as music, video, etc. are saved in an external memory card.

The internal memory 121 may be used to store computer-executable program code, which includes instructions. The internal memory 121 may include a program storage area and a data storage area. The storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required by at least one function, and the like. The storage data area may store data (e.g., audio data, a phonebook, etc.) created during use of the UE100, and the like. In addition, the internal memory 121 may include a high-speed random access memory, and may further include a nonvolatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (UFS), and the like. The processor 110 performs various functional applications of the UE100 and data processing by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.

The UE100 may implement audio functions through the audio module 170, the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor. Such as music playing, recording, etc.

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

The speaker 170A, also called a "horn", is used to convert the audio electrical signal into a sound signal. The UE100 can listen to music through the speaker 170A or listen to a hands-free call.

The receiver 170B, also called "earpiece", is used to convert the electrical audio signal into an acoustic signal. When the UE100 answers a call or voice information, it can answer voice by bringing the receiver 170B close to the human ear.

The microphone 170C, also referred to as a "microphone," is used to convert sound signals into electrical signals. When making a call or sending voice information, the user can input a voice signal into the microphone 170C by uttering a voice signal by the mouth of the user near the microphone 170C. The UE100 may be provided with at least one microphone 170C. In other embodiments, the UE100 may be provided with two microphones 170C to achieve noise reduction functions in addition to collecting sound signals. In other embodiments, the UE100 may further include three, four or more microphones 170C to collect voice signals, reduce noise, identify voice sources, implement directional recording functions, and so on.

The headphone interface 170D is used to connect a wired headphone. The headset interface 170D may be the USB interface 130, or may be a 3.5mm open mobile electronic device platform (OMTP) standard interface, a cellular telecommunications industry association (cellular telecommunications industry association) standard interface of the USA.

The keys 190 include a power-on key, a volume key, and the like. The keys 190 may be mechanical keys. Or may be touch keys. The UE100 may receive a key input, and generate a key signal input related to user setting and function control of the UE 100.

The motor 191 may generate a vibration cue. The motor 191 may be used for incoming call vibration cues, as well as for touch vibration feedback. For example, touch operations applied to different applications (e.g., photographing, audio playing, etc.) may correspond to different vibration feedback effects. The motor 191 may also respond to different vibration feedback effects for touch operations applied to different areas of the display screen 194. Different application scenes (such as time reminding, receiving information, alarm clock, game and the like) can also correspond to different vibration feedback effects. The touch vibration feedback effect may also support customization.

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

The SIM card interface 195 is used to connect a SIM card. The SIM card can be brought into and out of contact with the UE100 by being inserted into the SIM card interface 195 or being pulled out of the SIM card interface 195. The UE100 may support 1 or N SIM card interfaces, N being a positive integer greater than 1. The SIM card interface 195 may support a Nano SIM card, a Micro SIM card, a SIM card, etc. The same SIM card interface 195 can be inserted with multiple cards at the same time. The types of the plurality of cards may be the same or different. The SIM card interface 195 may also be compatible with different types of SIM cards. The SIM card interface 195 may also be compatible with external memory cards. The UE100 interacts with the network through the SIM card to implement functions such as communication and data communication. In some embodiments, the UE100 employs eSIM, namely: an embedded SIM card. The eSIM card may be embedded in the UE100 and cannot be separated from the UE 100.

An embodiment of the present application provides a non-transitory computer-readable storage medium, which stores computer instructions, where the computer instructions cause the computer to execute a method for releasing a radio resource control connection according to an embodiment shown in fig. 1 to 2 of the present application.

The non-transitory computer readable storage medium described above may take any combination of one or more computer readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read Only Memory (ROM), an Erasable Programmable Read Only Memory (EPROM), or a flash memory, an optical fiber, a portable compact disc read only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

A computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.

Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, Radio Frequency (RF), etc., or any suitable combination of the foregoing.

Computer program code for carrying out operations for aspects of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).

The foregoing description of specific embodiments of the present application has been presented. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.

In the description of the present application, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this application, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this application can be combined and combined by those skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing steps of a custom logic function or process, and alternate implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.

The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.

It should be noted that the terminal referred to in the embodiments of the present application may include, but is not limited to, a Personal Computer (PC), a Personal Digital Assistant (PDA), a wireless handheld device, a tablet computer (tablet computer), a mobile phone, an MP3 player, an MP4 player, and the like.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions in actual implementation, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or in the form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A method for releasing a radio resource control connection, comprising:

after receiving a call request of a network side for a non-data card in the user equipment, the user equipment establishes radio resource control connection between the non-data card and the network side;

starting a first timer preset in the user equipment, wherein the timing duration of the first timer is a first starting duration;

after the first timer is overtime, if the non-data card does not perform IP Multimedia Subsystem (IMS) service and the radio resource control connection is not released, locally releasing the radio resource control connection and updating the timing duration of the first timer to a first updating duration; wherein the first update duration is determined according to a first update factor and the first start duration.

2. The method according to claim 1, wherein after the starting of the first timer preset in the user equipment, the method further comprises:

before the first timer is overtime, the user equipment interacts with the network side through the non-data card to determine that the call request is an IMS service;

acquiring a first current moment and the establishment moment of the radio resource control connection;

determining a first time length between a first current time and the establishment time, and stopping the first timer;

updating the timing duration of the first timer to a second updating duration; and the second updating time length is determined according to a second updating factor, the first time length and the first starting time length.

3. The method according to claim 1, wherein after the starting of the first timer preset in the user equipment, the method further comprises:

before the first timer is overtime, if the user equipment does not determine that the call request is an IMS service and the radio resource control connection is released, the user equipment acquires a second current time and the establishment time of the radio resource control connection;

determining a second time length between a second current time and the establishment time, and stopping the first timer;

updating the timing duration of the first timer to a third updating duration; wherein the third update duration is determined according to a third update factor, the second time duration, and the first start duration.

4. The method of claim 2, wherein after determining that the call request is an IMS service, further comprising:

after the IMS service is finished, the user equipment starts a second timer preset in the user equipment, wherein the timing duration of the second timer is a second starting duration;

after the second timer is overtime, if the radio resource control connection is not released and the non-data card does not perform a new IMS service, locally releasing the radio resource control connection and updating the timing duration of the second timer to a fourth updating duration; wherein the fourth update duration is determined according to a fourth update factor and the second start duration.

5. The method according to claim 4, wherein after the ue starts the second timer preset in the ue, the method further comprises:

before the second timer is overtime, if the radio resource control connection is not released and the non-data card carries out new IMS service again, stopping the second timer;

updating the timing duration of the second timer to a fifth updating duration; wherein the fifth update duration is determined according to a fifth update factor and the second start duration.

6. The method according to claim 4, wherein after the ue starts the second timer preset in the ue, the method further comprises:

before the second timer is overtime, if the non-data card does not perform a new IMS service and the radio resource control connection is released, the user equipment acquires a third current time and the establishment time of the radio resource control connection;

determining a third time length between a third current time and the setup time, and stopping the second timer;

updating the timing duration of the second timer to a sixth updating duration; and the sixth updating time length is determined according to a sixth updating factor, the third time length and the second starting time length.

7. The method according to claim 4, wherein after establishing the radio resource control connection between the non-data card and the network side, further comprising:

the user equipment stores the public land mobile network and the tracking area code of the current cell;

and if the UE detects that the public land mobile network and the tracking area code of the current cell are updated, updating the timing duration of the first timer according to a seventh updating factor, and updating the timing duration of the second timer according to an eighth updating factor.

8. An apparatus for releasing a radio resource control connection, provided in a user equipment, the apparatus comprising:

the receiving module is used for receiving a call request of a network side for a non-data card in the user equipment;

the establishing module is used for establishing wireless resource control connection between the non-data card and the network side after the receiving module receives the call request;

the starting module is used for starting a first timer preset in the user equipment, and the timing duration of the first timer is a first starting duration;

a release module, configured to, after the first timer expires, if the non-data card does not perform an IP multimedia subsystem IMS service and the radio resource control connection is not released, locally release the radio resource control connection;

the updating module is used for updating the timing duration of the first timer into a first updating duration; wherein the first update duration is determined according to a first update factor and the first start duration.

9. The apparatus of claim 8, further comprising:

a determining module, configured to interact with the network side through the non-data card after the starting module starts a first timer and before the first timer times out, and determine that the call request is an IMS service;

an obtaining module, configured to obtain a first current time and a time of establishing the radio resource control connection;

the determining module is further configured to determine a first time length between a first current time and the establishing time;

a stopping module for stopping the first timer;

the updating module is further configured to update the timing duration of the first timer to a second updating duration; the second updating time length is determined according to a second updating factor, the first time length and the first starting time length.

10. The apparatus of claim 8, further comprising:

an obtaining module, configured to obtain a second current time and a time of establishing the radio resource control connection if the ue has not determined that the call request is an IMS service and the radio resource control connection is released after the starting module starts a first timer and before the first timer expires;

a determining module, configured to determine a second time length between a second current time and the establishing time;

a stopping module for stopping the first timer;

the updating module is further configured to update the timing duration of the first timer to a third updating duration; wherein the third update duration is determined according to a third update factor, the second time length, and the first start duration.

11. The apparatus of claim 9,

the starting module is further configured to start a second timer preset in the user equipment after the determining module determines that the call request is an IMS service and after the IMS service is ended, where a timing duration of the second timer is a second starting duration;

the releasing module is further configured to, after the second timer expires, locally release the radio resource control connection if the radio resource control connection is not released and the non-data card does not perform a new IMS service;

the updating module is further configured to update the timing duration of the second timer to a fourth updating duration; wherein the fourth update duration is determined according to a fourth update factor and the second start duration.

12. The apparatus of claim 11,

the stopping module is further configured to, after the starting module starts the second timer and before the second timer expires, stop the second timer if the radio resource control connection is not released and the non-data card performs a new IMS service again;

the updating module is further configured to update the timing duration of the second timer to a fifth updating duration; wherein the fifth update duration is determined according to a fifth update factor and the second start duration.

13. The apparatus of claim 11,

the obtaining module is further configured to, after the starting module starts a second timer and before the second timer expires, obtain a third current time and a time of establishing the radio resource control connection if the non-data card does not perform a new IMS service and the radio resource control connection is released;

the determining module is further configured to determine a third time length between a third current time and the establishing time;

the stopping module is further configured to stop the second timer;

the updating module is further configured to update the timing duration of the second timer to a sixth updating duration; and the sixth updating time length is determined according to a sixth updating factor, the third time length and the second starting time length.

14. The apparatus of claim 11, further comprising:

a storage module, configured to store a public land mobile network and a tracking area code of a current cell after the establishment module establishes a radio resource control connection between the non-data card and the network side;

the updating module is further configured to update the timing duration of the first timer according to a seventh updating factor and update the timing duration of the second timer according to an eighth updating factor when the ue detects that the plmn and tracking area code of the current cell are updated.

15. A user equipment, comprising:

at least one processor; and

at least one memory communicatively coupled to the processor, wherein:

the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1 to 7.

16. A non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the method of any of claims 1-7.