WO2023216236A1

WO2023216236A1 - Network access method and apparatus, and communication device and storage medium

Info

Publication number: WO2023216236A1
Application number: PCT/CN2022/092711
Authority: WO
Inventors: 曾萍萍; 吴诚
Original assignee: 北京小米移动软件有限公司
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2023-11-16
Also published as: CN117413500A

Abstract

Provided in the embodiments of the present disclosure are a network access method and apparatus, and a communication device and a storage medium. The network access method is executed by a terminal. The method comprises: when the mobile network coverage situation at the location of a terminal meets a preset condition, acquiring the mobile network access situation of a first subscriber identity module (SIM) card in the terminal, wherein the terminal is at least configured with the first SIM card and a second SIM card; when the first SIM card is connected to a first mobile network, switching, to the second SIM card, a radio frequency (RF) resource that is occupied by the first SIM card; and connecting the second SIM card to the first mobile network on the basis of the RF resource.

Description

Network access method and device, communication equipment and storage medium

Technical field

The present disclosure relates to the field of wireless communication technology but is not limited to the field of wireless communication technology, and in particular, to a network access method and device, communication equipment and storage media.

Background technique

In the current communication solution, if a Subscriber Identity Module (SIM) card in a multi-card terminal is occupying Radio Frequency (RF) resources for communication and interaction, the other card only has no available RF resources. Can suspend any ongoing business. According to the resource occupation priority logic of dual-card design, it is often judged based on the type of business being performed by the dual-card. In current related technologies, the priority of the primary card is usually higher than that of the secondary card.

In the daily use of Doka end users, returning from a weak or no network environment to a strong signal coverage area is an extremely common user scenario, such as returning to the ground from an underground garage, walking out of an elevator, etc. Therefore, there are frequent situations where the secondary card cannot restore its registration to the Radio Access Technology (RAT) network for a long time due to the high priority of the primary card occupying RF resources, and the secondary card cannot restore network availability for a long time.

Contents of the invention

Embodiments of the present disclosure provide a network access method and device, communication equipment, and storage media.

A first aspect of the embodiments of the present disclosure provides a network access transmission method, which is executed by a terminal. The method includes:

When the mobile network coverage at the location of the terminal meets the preset conditions, obtain the mobile network access situation of the first user identification SIM card in the terminal; the terminal is configured with at least the first SIM card and the second SIM card;

When it is determined that the first SIM card accesses the first mobile network according to the mobile network access situation, switch the radio frequency RF resource occupied by the first SIM card to the second SIM card;

Access the second SIM card to the first mobile network based on the RF resource.

A second aspect of the embodiment of the present disclosure provides a network access device, which is applied to a terminal. The device includes:

An acquisition unit configured to acquire the mobile network access status of the first user identification SIM card in the terminal when the mobile network coverage at the location of the terminal meets the preset conditions; the terminal is configured with at least the first SIM card and Second SIM card;

A switching unit, configured to switch the radio frequency RF resources occupied by the first SIM card to the second SIM card when it is determined that the first SIM card is accessed to the first mobile network according to the mobile network access situation;

An access unit, configured to access the second SIM card to the first mobile network based on the RF resource.

A third aspect of the embodiment of the present disclosure provides a communication device, including a processor, a memory, and an executable program stored in the memory and capable of being run by the processor, wherein when the processor runs the executable program, The network access method provided in the first aspect is as mentioned above.

A fourth aspect of the embodiments of the present disclosure provides a computer storage medium that stores an executable program; after the executable program is executed by a processor, the network access method provided by the first aspect can be implemented.

The technical solution provided by the embodiments of the present disclosure is to obtain the mobile network access status of the first user identification SIM card in the terminal when the mobile network coverage at the location of the terminal meets the preset conditions; the terminal is configured with at least the third A SIM card and a second SIM card; when the first SIM card accesses the first mobile network, the radio frequency RF resources occupied by the first SIM card are switched to the second SIM card; based on the RF resources, the The second SIM card accesses the first mobile network. In this way, after the first SIM card accesses the predetermined first mobile network, the occupied RF resources are allocated to the second SIM card, thereby reducing the long-term continuous occupation of RF resources by the first SIM card causing the second SIM card to be unable to access the mobile network in time. network. Therefore, the RF resource allocation of multi-SIM terminals can be optimized, and the network access speed and network availability of multiple SIM cards can be improved.

It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and do not limit the embodiments of the present disclosure.

Description of the drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the embodiments of the invention.

Figure 1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment;

Figure 2 is a schematic flowchart of a network access method according to an exemplary embodiment;

Figure 3 is a schematic flow chart of a network access method according to an exemplary embodiment;

Figure 4 is a schematic flowchart of a network access method according to an exemplary embodiment;

Figure 5 is a schematic flow chart of a network access method according to an exemplary embodiment;

Figure 6 is a schematic structural diagram of a network access device according to an exemplary embodiment;

Figure 7 is a schematic structural diagram of a terminal according to an exemplary embodiment.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with embodiments of the invention. Rather, they are merely examples of apparatus and methods consistent with some aspects of embodiments of the invention.

The terminology used in the embodiments of the present disclosure is for the purpose of describing specific embodiments only and is not intended to limit the embodiments of the present disclosure. As used in this disclosure, the singular forms "a," "the" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used to describe various information in the embodiments of the present disclosure, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the embodiments of the present disclosure, the first information may also be called second information, and similarly, the second information may also be called first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "when" or "in response to determining."

Please refer to FIG. 1 , which shows a schematic structural diagram of a wireless communication system provided by an embodiment of the present disclosure. As shown in Figure 1, the wireless communication system is a communication system based on cellular mobile communication technology. The wireless communication system may include: several terminals 11 and several access devices 12.

Among them, the terminal 11 may be a device that provides voice and/or data connectivity to the user. Terminal 11 can communicate with one or more core networks via a Radio Access Network (RAN). Terminal 11 can be an Internet of Things terminal, such as a sensor device, a mobile phone (or "cellular" phone) and a device with The computer of the Internet of Things terminal, for example, can be a fixed, portable, pocket-sized, handheld, computer-built-in or vehicle-mounted device. For example, station (STA), subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), mobile station (mobile), remote station (remote station), access point, remote terminal ( remote terminal), access terminal, user terminal, user agent, user device, or user equipment (terminal). Alternatively, the terminal 11 may be a device of an unmanned aerial vehicle. Alternatively, the terminal 11 may also be a vehicle-mounted device, for example, it may be an on-board computer with a wireless communication function, or a wireless communication device connected to an external on-board computer. Alternatively, the terminal 11 may also be a roadside device, for example, it may be a streetlight, a signal light or other roadside device with wireless communication function.

The access device 12 may be a network-side device in the wireless communication system. Among them, the wireless communication system can be the 4th generation mobile communication technology (the 4th generation mobile communication, 4G) system, also known as the Long Term Evolution (LTE) system; or the wireless communication system can also be a 5G system, Also called new radio (NR) system or 5G NR system. Alternatively, the wireless communication system may also be a next-generation system of the 5G system. Among them, the access network in the 5G system can be called NG-RAN (New Generation-Radio Access Network). Or, MTC system.

The access device 12 may be an evolved access device (eNB) used in the 4G system. Alternatively, the access device 12 may also be an access device (gNB) using a centralized distributed architecture in the 5G system. When the access device 12 adopts a centralized distributed architecture, it usually includes a centralized unit (central unit, CU) and at least two distributed units (distributed unit, DU). The centralized unit is equipped with a protocol stack including the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control protocol (Radio Link Control, RLC) layer, and the Media Access Control (Media Access Control, MAC) layer; distributed The unit is provided with a physical (Physical, PHY) layer protocol stack, and the embodiment of the present disclosure does not limit the specific implementation of the access device 12.

A wireless connection can be established between the access device 12 and the terminal 11 through a wireless air interface. In different implementations, the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, such as The wireless air interface is a new air interface; alternatively, the wireless air interface may also be a wireless air interface based on the next generation mobile communication network technology standard of 5G.

Optionally, the above wireless communication system may also include a network management device 13. Several access devices 12 are connected to the network management device 13 respectively. The network management device 13 may be a core network device in a wireless communication system. For example, the network management device 13 may be a mobility management entity (Mobility Management Entity) in an evolved packet core network (Evolved Packet Core, EPC). MME). Alternatively, the network management device can also be other core network devices, such as serving gateway (Serving GateWay, SGW), public data network gateway (Public Data Network GateWay, PGW), policy and charging rules functional unit (Policy and Charging Rules) Function, PCRF) or Home Subscriber Server (HSS), etc. The embodiment of the present disclosure does not limit the implementation form of the network management device 13 .

As shown in Figure 2, an embodiment of the present disclosure provides a network access method, which is executed by a terminal and includes:

S110: When the mobile network coverage at the location of the terminal meets the preset conditions, obtain the mobile network access situation of the SIM card identified by the first user in the terminal; the terminal is configured with at least a first SIM card and a second SIM card;

S120: When it is determined that the first SIM card is connected to the first mobile network according to the mobile network access situation, switch the radio frequency RF resources occupied by the first SIM card to the second SIM card;

S130: Connect the second SIM card to the first mobile network based on RF resources.

In the embodiment of the present disclosure, the terminal may be a device with a call function such as a mobile phone or a watch, and at least two SIM cards may be installed in the terminal for communication services. The first mobile network may be a predetermined mobile network, such as a packet switched (Packet Switched, PS) network or a circuit switched (Circuit Switched, CS) network. The RF resources may at least include RF resources provided by the terminal for communication interaction, such as firmware resources such as transceivers, baseband chips, and antennas in the terminal.

In one embodiment, the first mobile network may also be determined based on the location of the terminal. For example, the first mobile network may be an available mobile network with the best signal strength or the most access devices at the location of the terminal. Exemplarily, obtain at least one available mobile network where the terminal is located; in at least one available mobile network, according to the bandwidth, signal-to-noise ratio, reference signal receiving power (RSRP) or reference signal receiving quality of the mobile network At least one of the communication parameters such as (Reference Signal Receiving Quality, RSRQ) determines the first mobile network.

In one embodiment, the mobile network coverage at the location of the terminal satisfies the preset conditions, which may include at least one of the following conditions: the signal strength of the mobile network at the location of the terminal is lower than the preset signal strength threshold; the mobile network bandwidth is lower than the preset bandwidth Threshold; mobile network RSRP is lower than the preset RSRP threshold; mobile network RSRQ is lower than the preset RSRQ threshold. At this time, the signal quality of the mobile network available to the terminal is poor, which means that the terminal is in a weak field environment covered by mobile network signals, such as in a basement, an elevator, or other weak or no network environments.

Here, the mobile network where the terminal is located may be the first mobile network, or may be multiple available mobile networks including the first mobile network.

In one embodiment, the mobile network coverage at the terminal's location satisfies preset conditions, which may include that at least two of the mobile network signal strength, bandwidth, RSRP and RSRQ at the terminal's location are lower than the preset value after weighted calculation. Set a lower limit.

In one embodiment, the mobile network coverage at the location of the terminal satisfies the preset conditions, which may include that the signal strength of the mobile network at the location of the terminal decreases and the change is higher than the preset value within the predetermined time window, or the bandwidth decreases and the change is high. at the preset value, or RSRP decreases and the change amount is higher than the preset value, or RSRQ decreases and the change amount is higher than the preset value, etc.

In one embodiment, the mobile network coverage at the terminal's location satisfies preset conditions, which may include an increase in the mobile network signal strength at the terminal's location within a predetermined time window and a change higher than a preset value, or an increase in bandwidth and a high change. at the preset value, or RSRP increases and the change is higher than the preset value, or RSRQ increases and the change is higher than the preset value, etc.

Here, the predetermined time window may be a preset time period, such as 5 seconds, 10 seconds or 15 seconds. For example, the mobile network coverage at the location of the terminal satisfies the preset conditions, which may be that the RSRP increase rate of the mobile network at the location of the terminal is higher than 60% within 5 seconds, etc. At this time, it can be determined that the terminal has entered an environment with strong signal coverage from a weak network or no network environment, such as returning to the ground from the basement or walking out of the elevator, etc., and needs to quickly restore multi-SIM card mobile network access.

In this way, the RF resources of the terminal's SIM card can be allocated and switched when the terminal's mobile network signal quality fluctuates violently, such as when it changes from a weak network or no network environment to a strong signal coverage environment.

In one embodiment, the first SIM card may be the primary SIM card set by the terminal, and the second SIM card may be the secondary SIM card of the terminal device. Since the priority of the primary SIM card is often higher than that of the secondary SIM card, the primary SIM card often occupies the terminal's RF resources first.

In one embodiment, switching the radio frequency RF resources occupied by the first SIM card to the second SIM card may be to switch all the RF resources occupied by the first SIM card to the second SIM card for the second SIM card to access the mobile phone. network.

In another embodiment, switching the radio frequency RF resources occupied by the first SIM card to the second SIM card may include switching a preset proportion of the RF resources occupied by the first SIM card to the second SIM card, where , the preset ratio may be determined based on the currently ongoing communication interaction traffic of the first SIM card. For example, the higher the bandwidth occupied by the current communication service of the first SIM card, the lower the preset proportion occupied by the RF resources switched to the second SIM card, etc.

In one embodiment, obtaining the mobile network access status of the first user identification SIM card in the terminal may include determining the mobile network registration status of the first SIM card of the terminal. For example, obtain the registration status variable of the first SIM card in the terminal to the mobile network. Among them, the registration status variable can indicate whether the SIM card has successfully registered with the mobile network. For example, a registration status variable of "true" can indicate a successful registration, and a registration status variable of "false" can indicate a registration failure.

In one embodiment, the registration status variable may include a first registration status variable for the first mobile network. For example, when the first mobile network is a PS network, the first registration status variable may be ps_reg1; when the second mobile network is an IMS, The second registration status variable can be ims_reg1, etc.

In another embodiment, the first SIM card accessing the first mobile network may include the first SIM card registering successfully with the first mobile network. For example, when the first SIM card accesses the first mobile network, the first registration status variable of the first SIM card to the first mobile network may be a preset value. For example, when the value of ps_reg1 is "true", it can be determined that the first SIM card is connected to the PS network.

In one embodiment, the first SIM card accessing the first mobile network may include the first SIM card accessing the first mobile network and staying in the first mobile network for a duration exceeding a first duration threshold. For example, after the first SIM card is successfully registered with the first mobile network and the registration status variable remains unchanged within the first duration threshold, it can be determined that the first SIM card has accessed the first mobile network.

The first duration threshold can be a preset fixed value, such as 3 seconds, 5 seconds or 10 seconds, etc., or can be determined based on the mobile network coverage at the terminal's location. For example, the lower the signal strength of the mobile network at the terminal's location, the lower the signal strength. , the longer the first duration threshold is, etc., thereby ensuring that the first SIM card can continue to stably access the first mobile network before switching the RF resource to the second SIM card.

In this way, after the first SIM card accesses the predetermined first mobile network, the occupied RF resources are allocated to the second SIM card, thereby reducing the long-term continuous use of the first SIM card on the basis of the first SIM card restoring the availability of the mobile network. Occupying RF resources causes the second SIM card to be unable to access the mobile network in time. When the terminal switches between primary and secondary cards or needs to temporarily perform emergency communication interaction services through the SIM card, this can reduce the inability of the second SIM card to quickly respond to emergency communication services due to not being connected to the mobile network. Therefore, the RF resource allocation of multi-SIM terminals can be optimized, which will help multiple SIM cards restore mobile network access more quickly in weak or no-network environments, and improve the network access speed and terminal network availability of multiple SIM cards.

It should be noted that those skilled in the art can understand that the methods provided in the embodiments of the present disclosure can be executed alone or together with some methods in the embodiments of the present disclosure or some methods in related technologies.

In some embodiments, as shown in Figure 3, S120 may include:

S121: When it is determined that the first SIM card is connected to the first mobile network according to the mobile network access situation, determine whether the long-term evolution voice bearer VOLTE function of the first SIM card is enabled; the first mobile network at least includes: a packet switching PS network;

S122: If the VOLTE function of the first SIM card is not turned on, switch the radio frequency RF resources occupied by the first SIM card to the second SIM card.

In the embodiment of the present disclosure, determining whether the long-term evolution voice bearer (Voice Over Long-Term Evolution, VOLTE) function of the first SIM card is turned on may be to obtain the VOLTE switch state variable sim1_volte of the first SIM card. When the value of sim1_volte is When "true", it can be determined that the VOLTE function of the first SIM card is turned on. When the value of sim1_volte is "false", it can be determined that the VOLTE function of the first SIM card is not enabled.

Because when the first mobile network is the PS network, after the first SIM card is connected to the PS network, if the VOLTE function is turned on, the first SIM card needs to be connected to the second mobile network corresponding to the VOLTE function, such as the Internet-Protocol Multimedia System (Internet-Protocol Multimedia System). System, IMS) network can realize communication functions such as voice interaction that cannot be provided by the PS network.

Therefore, when it is determined that the VOLTE function of the first SIM card is not enabled, it can be determined that the first SIM card does not have the need to access the second mobile network, and therefore the RF resources can be switched to the second SIM card without interrupting the first SIM card. The impact of the SIM card access to the second mobile network process.

In one embodiment, the VOLTE function of the first SIM card is not turned on, which may include: if the VOLTE switch state variable of the first SIM card remains "false" within the second duration threshold, then determining the first SIM card's VOLTE function. The VOLTE function is not turned on.

In one embodiment, if the VOLTE function of the first SIM card is not turned on, switching the radio frequency RF resources occupied by the first SIM card to the second SIM card may include: if the VOLTE switch state variable of the first SIM card is in the first SIM card. If it remains "false" within the second duration threshold, and the first SIM card remains connected to the first mobile network after the second duration threshold, the radio frequency RF resources occupied by the first SIM card will be switched to the second SIM card.

In this way, when the VOLTE function of the first SIM card is not turned on, it can be determined that the first SIM card accesses the first mobile network and will not access the IMS network corresponding to VOLTE, etc., that is, the first SIM card will continue to stably maintain the first Mobile network access status. Therefore, at this time, the RF resources occupied by the first SIM card can be switched to the second SIM card, which not only improves the network recovery speed of the second SIM card, but also reduces the impact of RF resource scheduling and allocation on the first SIM card's network access. causing instability.

In some embodiments, as shown in Figure 4, the method further includes:

S123: If the VOLTE function of the first SIM card is turned on, determine whether the first SIM card accesses the second mobile network within the first preset time period; the second mobile network at least includes: the Internet Multimedia System IMS network;

S124: When the first SIM card accesses the second mobile network, switch the radio frequency RF resources occupied by the first SIM card to the second SIM card.

In this embodiment of the present disclosure, the second mobile network may be a network under a Long Term Evolution (LTE) architecture, such as an IMS network. When the first SIM card is connected to the first mobile network such as the PS network and the VOLTE function of the first SIM card is turned on, the first SIM card needs to be connected to the IMS network to realize the voice interaction function. At this time, the first SIM card has the ability to connect conditions for accessing the second mobile network. Therefore, it is necessary to ensure that the first SIM card accesses the second mobile network after the VOLTE function is turned on, or it is determined that the first SIM card cannot access the second mobile network before switching the RF resources to the second mobile network. SIM card.

In one embodiment, the VOLTE function of the first SIM card is enabled when the VOLTE switch state variable of the first SIM card is "true", or the VOLTE switch state variable of the first SIM card remains as "true" within the second duration threshold. "true" remains unchanged.

In one embodiment, the first preset time period may be a preset fixed time period, such as 10s, 15s or 30s. For example, the starting time of the first preset duration may be the time when it is determined that the VOLTE function of the first SIM card is turned on.

In one embodiment, determining whether the first SIM card accesses the second mobile network may be determining whether the first SIM card is successfully registered in the second mobile network. For example, it is determined according to the second registration status variable of the first SIM card whether the first SIM card is successfully registered in the second mobile network. For example, the second registration status variable may be ims_reg1 indicating the registration status of the first SIM card in the IMS network.

For example, when the value of ims_reg1 is "true", it is determined that the first SIM card is connected to the second mobile network; when the value of ims_reg1 is "false", it is determined that the first SIM card is not connected to the second mobile network.

In one embodiment, the first SIM card accessing the second mobile network may include the first SIM card accessing the second mobile network and staying in the second mobile network for a duration exceeding the first duration threshold. For example, after the first SIM card is successfully registered in the second mobile network and the registration status variable remains unchanged within the first duration threshold, it can be determined that the first SIM card has accessed the second mobile network.

The first duration threshold can be a preset fixed value, such as 3 seconds, 5 seconds or 10 seconds, etc., or can be determined based on the mobile network coverage at the terminal's location. For example, the lower the signal strength of the mobile network at the terminal's location, the lower the signal strength. , the longer the first duration threshold is, etc., so as to ensure that the first SIM card can continuously and stably access the second mobile network before switching the RF resource to the second SIM card.

In this way, when the VOLTE function of the first SIM card is turned on, it is necessary to confirm that the first SIM card has successfully accessed the second mobile network corresponding to LTE before switching the RF resources to the second SIM card, thereby improving the performance of the second SIM card. On the basis of the network recovery access speed, it also reduces the interruption that causes the first SIM card to access the LTE network, thereby reducing the unstable impact of RF resource scheduling and allocation on the first SIM card's network access.

In some embodiments, the method further includes:

If the first SIM card does not access the second mobile network within the first preset time period, the radio frequency RF resources occupied by the first SIM card are switched to the second SIM card after the first preset time period.

In the embodiment of the present disclosure, within the first preset time period starting from the moment when it is determined that the VOLTE function of the first SIM card is turned on, the first SIM card does not access the second mobile network, which means that the first SIM card is not connected to the second mobile network when the VOLTE function is turned on. In this case, the second mobile network cannot be accessed. Therefore, switching the RF resources of the first SIM card to the second SIM card will not hinder the mobile network access process of the first SIM card, and then the RF resources are switched to the second SIM card after the first preset time period.

In this way, on the basis of improving the network recovery access speed of the second SIM card, the RF resource switching can be prevented from interrupting the process of the first SIM card accessing the second mobile network, thereby improving the stability of the mobile network of the terminal with multiple SIM cards. .

In some embodiments, the method further includes:

After connecting the second SIM card to the first mobile network based on RF resources, determine whether the VOLTE function of the second SIM card is turned on;

If the VOLTE function of the second SIM card is not turned on, switch the RF resources to the first SIM card.

In this embodiment of the present disclosure, after switching the RF resources occupied by the first SIM card to the second SIM card, the second SIM card accesses the first mobile network based on the RF resources. For example, after the first SIM card accesses the PS network, The second SIM card also accesses the PS network based on the switched RF resources.

Since the first SIM card, as the main SIM card in the terminal, often needs to perform most of the communication and interaction services of the terminal, after the second SIM card stably accesses the first mobile network, the RF resources can be switched back to the first SIM card. . On the basis of ensuring the network availability of the second SIM card, the terminal's communication service can be smoothly executed through the first SIM card, thereby reducing the impact on the terminal's normal communication service processing efficiency.

After the second SIM card accesses the first mobile network such as the PS network, it is necessary to determine whether the second SIM card has a service requirement for voice interaction. When there is a service requirement for voice interaction, the second SIM card needs to access the corresponding third mobile network. Second, mobile networks such as IMS networks can realize the voice interaction function.

Therefore, based on whether the VOLTE function of the second SIM card is turned on, it can be determined whether the second SIM card currently needs to access the second mobile network. When the VOLTE function of the second SIM card is not turned on, the second SIM card does not need to access the second mobile network. At this time, the RF resource can be switched back to the first SIM card, and it will not cause the second SIM card to access the third mobile network. 2. Interruption of the mobile network process.

In one embodiment, switching the radio frequency RF resources occupied by the second SIM card to the first SIM card may be to switch all the RF resources occupied by the second SIM card to the first SIM card for communication and interaction with the first SIM card. business.

In another embodiment, switching the radio frequency RF resources occupied by the second SIM card to the first SIM card may include switching a preset proportion of RF resources among the RF resources occupied by the second SIM card to the first SIM card, where , the preset ratio may be determined based on the currently ongoing communication interaction traffic of the second SIM card. For example, the higher the bandwidth occupied by the current communication service of the second SIM card, the lower the preset proportion occupied by the RF resources switched to the first SIM card, etc.

In one embodiment, when the second SIM card accesses the first mobile network, the value of the third registration status variable ps_reg2 of the second SIM card in the first mobile network may be "true".

In one embodiment, determining whether the VOLTE function of the second SIM card is enabled may be to obtain the VOLTE switch state variable sim2_volte of the second SIM card. When the value of sim2_volte is "true", it may be determined that the VOLTE function of the second SIM card is enabled. Turn on. When the value of sim2_volte is "false", it can be determined that the VOLTE function of the second SIM card is not turned on.

In one embodiment, the VOLTE function of the second SIM card is not turned on, which may include: if the VOLTE switch state variable of the second SIM card remains "false" within the second duration threshold, then determining the second SIM card's VOLTE function. The VOLTE function is not turned on.

In one embodiment, if the VOLTE function of the second SIM card is not turned on, switching the RF resource to the first SIM card may include: if the VOLTE switch state variable of the second SIM card remains "false" within the second duration threshold " remains unchanged, and the second SIM card remains connected to the first mobile network after the second duration threshold, then the RF resource is switched to the first SIM card.

In this way, the second SIM card's access to the first mobile network can improve the network availability of the second SIM card, thereby improving the response speed of the second SIM card to requirements such as primary and secondary card switching or communication interaction services. On this basis, switching the RF resource back to the first SIM card can provide communication resources to the first SIM card in priority for executing the main communication service of the terminal. When the VOLTE function of the second SIM card is not turned on, it can be determined that the second SIM card accesses the first mobile network and will not access the IMS network corresponding to VOLTE. That is, switching the RF resource back to the first SIM card at this time will not Interrupting the access process of the second SIM card to the second mobile network, the second SIM card will continue to stably maintain the access state of the first mobile network. Therefore, at this time, the RF resources occupied by the second SIM card can be switched to the first SIM card, which not only ensures the stability of the communication interaction service of the first SIM card, but also reduces the impact of RF resource scheduling and allocation on the network access of the second SIM card. causing instability.

In some embodiments, the method further includes:

If the VOLTE function of the second SIM card is turned on, determine whether the second SIM card accesses the second mobile network within the second preset time period;

When the second SIM card accesses the second mobile network, the RF resource is switched to the first SIM card.

In this embodiment of the present disclosure, the second mobile network may be a network under the LTE architecture, such as an IMS network. When the VOLTE function of the first SIM card is turned on, the second SIM card needs to access the IMS network to achieve functions such as voice interaction. At this time, the second SIM card has the conditions to access the second mobile network, so the second SIM card needs to be determined. The RF resource is switched to the first SIM card only after the VOLTE function is turned on and the second mobile network is accessed.

In one embodiment, the VOLTE function of the second SIM card is enabled when the VOLTE switch state variable of the second SIM card is "true", or the VOLTE switch state variable of the second SIM card remains as "true" within the second duration threshold. "true" remains unchanged.

In one embodiment, the second preset time period may be a preset fixed time period, such as 10s, 15s or 30s. For example, the starting time of the second preset duration may be the time when it is determined that the VOLTE function of the second SIM card is turned on.

In one embodiment, determining whether the second SIM card accesses the second mobile network may be determining whether the second SIM card is successfully registered in the second mobile network. For example, it is determined according to the fourth registration status variable of the second SIM card whether the second SIM card is successfully registered in the second mobile network. For example, the fourth registration status variable may be ims_reg2 indicating the registration status of the second SIM card in the IMS network.

For example, when the value of ims_reg2 is "true", it is determined that the second SIM card is connected to the second mobile network; when the value of ims_reg2 is "false", it is determined that the second SIM card is not connected to the second mobile network.

In one embodiment, the second SIM card accessing the second mobile network may include the second SIM card accessing the second mobile network and staying in the second mobile network for a duration exceeding the first duration threshold. For example, after the second SIM card is successfully registered in the second mobile network and the registration status variable remains unchanged within the first duration threshold, it can be determined that the second SIM card has accessed the second mobile network.

The first duration threshold can be a preset fixed value, such as 3 seconds, 5 seconds or 10 seconds, etc., or can be determined based on the mobile network coverage at the terminal's location. For example, the lower the signal strength of the mobile network at the terminal's location, the lower the signal strength. , the longer the first duration threshold is, etc., so as to ensure that the second SIM card can continuously and stably access the second mobile network before switching the RF resource to the first SIM card.

In this way, when the VOLTE function of the second SIM card is turned on, it is necessary to confirm that the second SIM card has successfully accessed the second mobile network corresponding to LTE before switching the RF resources to the first SIM card, thereby optimizing the communication of the first SIM card. It also improves the stability of interactive services and reduces the interruption of the second SIM card's access to the second mobile network due to RF resource switching.

In some embodiments, the method further includes:

If the second SIM card does not access the second mobile network within the second preset time period, the RF resource is switched to the first SIM card after the second preset time period ends.

In the embodiment of the present disclosure, within the second preset time period starting from the moment when it is determined that the VOLTE function of the second SIM card is turned on, the second SIM card does not access the second mobile network, indicating that the second SIM card is not connected to the second SIM card when the VOLTE function is turned on. In this case, the second mobile network cannot be accessed. Therefore, switching the RF resources of the second SIM card back to the first SIM card will not hinder the LTE mobile network access process of the second SIM card, and the RF resources are switched to the first SIM card after the second preset time period.

In this way, the RF resources can be scheduled back to the first SIM card in a timely manner, thereby improving the stability of the communication service of the first SIM card, and reducing the interruption caused by the RF resource switching to the second SIM card's access to the second mobile network, so that the second SIM card can be connected to the second mobile network. Improve the stability of mobile networks with multiple SIM cards on terminals.

In some embodiments, the method further includes:

After switching the RF resource to the first SIM card, if the VOLTE function of the first SIM card is turned on and the first SIM card is not connected to the second mobile network, it is determined within the third preset time period whether the first SIM card Access the second mobile network;

If the first SIM card accesses the second mobile network within the third preset time period, switch the RF resource to the second SIM card;

If the first SIM card does not access the second mobile network within the third preset time period, the RF resource is switched to the second SIM card after the third preset time period ends.

In the embodiment of the present disclosure, the VOLTE function of the second SIM card is not turned on, or the VOLTE function of the second SIM card is turned on and the second SIM card is connected to the second mobile network, or the VOLTE function of the second SIM card is turned on. And after the second preset time period ends, the second SIM card does not access the second mobile network. After switching the RF resources to the first SIM card, continue to determine whether to transfer the RF resources according to the access status of the first SIM card to the second mobile network. Switch to the second SIM card again.

In one embodiment, for the first SIM card with the VOLTE function turned on, if it is not connected to the second mobile network, for example, the value of the second registration status variable ims_reg1 of the first SIM card is "false", then the first SIM card is determined to be Whether the card can access the second mobile network within the third preset time period.

In one embodiment, when the value of sim1_volte is "true" and the value of ims_reg1 is not "true", it means that the first SIM card has enabled the VOLTE function but is not connected to the IMS network, and it can be maintained within the third preset time period. The first SIM card occupies RF resources until the third preset time period ends or the value of ims_reg1 becomes "true".

In this way, after the first SIM card is allocated RF resources, if it accesses the second mobile network or is still unable to access the second mobile network within a certain period of time, that is, whether it is accessed or not accessed the second mobile network, it can It is determined that the access status of the first SIM card in the second mobile network remains stable. Therefore, the RF resource can be converted to the second SIM card for communication and interaction services.

In some embodiments, the method further includes:

After switching the RF resource to the second SIM card, if the VOLTE function of the second SIM card is turned on and the second SIM card is not connected to the second mobile network, it is determined within the fourth preset time period whether the second SIM card Access the second mobile network;

If the second SIM card accesses the second mobile network within the fourth preset time period, stop switching of RF resources;

If the second SIM card does not access the second mobile network within the fourth preset time period, the switching of RF resources is stopped after the fourth preset time period.

In the embodiment of the present disclosure, if the first SIM card accesses the second mobile network within the third preset time period, or the first SIM card has not accessed the second mobile network after the third preset time period, the RF resource is switched. After giving the second SIM card, continue to determine whether to stop switching RF resources this time based on the second mobile network access situation of the second SIM card.

In one embodiment, for the second SIM card with the VOLTE function turned on, if the second SIM card is not connected to the second mobile network, for example, the value of the second registration status variable ims_reg2 of the second SIM card is "false", then the second SIM card is determined to be Whether the card can access the second mobile network within the fourth preset time period.

In one embodiment, when the value of sim2_volte is "true" and the value of ims_reg2 is not "true", it means that the second SIM card has enabled the VOLTE function but is not connected to the IMS network, and it can be maintained within the fourth preset time period. The second SIM card occupies RF resources until the fourth preset time period ends or the value of ims_reg2 becomes "true".

In this way, after the second SIM card is allocated RF resources, if it accesses the second mobile network or is still unable to access the second mobile network within a certain period of time, that is, whether it is accessed or not accessed the second mobile network, it can It is determined that the access status of the second SIM card in the second mobile network remains stable. Therefore, it can be determined that the mobile network access conditions of the first SIM card and the second SIM card are both stable, and then the current RF resource switching scheduling can be stopped.

In order to better understand the embodiments of the present disclosure, the technical solution of the present disclosure is further described below through an exemplary embodiment:

As shown in Figure 5, an embodiment of the present disclosure provides a network access method, including:

1. The user equipment (UE) enters a weak field environment such as an elevator or basement and turns on optimization; the UE can include the first SIM card as the main card and the second SIM card as the secondary card;

2. Design four variables to store the high RAT PS registration status and IMS registration status of the dual card. The PS registration status variable of the main card is ps_reg1, the IMS registration status variable of the main card is ims_reg1, and the PS registration status variable and IMS registration of the secondary card The status variables are ps_reg2 and ims_reg2;

3. Monitor the changes of these four variables. If the main card reports that PS registration is successful, that is, ps_reg1==true, then enter step 4;

4. Determine whether the VOLTE switch of the main card is turned on (whether sim1_volte is true):

If VOLTE is turned on, go to step 5;

If the VOLTE switch is off, go to step 6;

5. Monitor the IMS registration status variable ims_reg1 of the main card and start timer1 (the first preset time corresponding to timer1 can be 10s):

If timer1 times out or ims_reg1 becomes true, enter step 6 immediately;

6. The main card actively triggers local release of local resources, switches the RF resources to the secondary card and enters step 7;

7. Force the secondary card to initiate a high RAT search network. If ps_reg2 is received as true, proceed to step 8;

8. Determine whether the VOLTE switch of the secondary card is turned on (whether sim2_volte is true):

If VOLTE is turned on, go to step 9;

If the VOLTE switch is turned off, go to step 10;

9. Turn on timer2 (the second preset time corresponding to timer2 can be 10s), and monitor the IMS registration status variable ims_reg2 of the secondary card:

If timer2 times out or ims_reg2 is true, the local release of the secondary card is actively triggered, the RF resources are returned to the primary card, and step 10 is entered;

10. If (sim1_volte==true and ims_reg1!=true), keep the main card occupying RF resources within the third preset timer_hold time until ims_reg1 of the main card is true or timer_hold times out, and enter step 11;

11. If (sim2_volte==true and ims_reg2!=true), keep the secondary card occupying RF resources within the third preset timer_hold time until ims_reg2 of the secondary card is true or timer_hold times out, and enter step 12;

12. Exit this program optimization.

As shown in Figure 6, this embodiment provides a network access device, which is applied to a terminal. The device includes:

The acquisition unit 10 is configured to acquire the mobile network access status of the first user identification SIM card in the terminal when the mobile network coverage at the location of the terminal meets the preset conditions; the terminal is configured with at least a first SIM card and a second SIM card. Card;

The switching unit 20 is configured to switch the radio frequency RF resources occupied by the first SIM card to the second SIM card when it is determined that the first SIM card is connected to the first mobile network according to the mobile network access situation;

The access unit 30 is used to access the second SIM card to the first mobile network based on RF resources.

In some embodiments, the switching unit 20 is specifically used for:

When it is determined that the first SIM card accesses the first mobile network according to the mobile network access situation, it is determined whether the long-term evolution voice bearer VOLTE function of the first SIM card is enabled; the first mobile network at least includes: a packet switching PS network;

If the VOLTE function of the first SIM card is not turned on, the radio frequency RF resources occupied by the first SIM card are switched to the second SIM card.

In some embodiments, the device further includes:

The determination unit is used to determine whether the first SIM card accesses the second mobile network within the first preset time period if the VOLTE function of the first SIM card is turned on; the second mobile network at least includes: Internet Multimedia System IMS;

The switching unit 20 is also used for:

When the first SIM card accesses the second mobile network, switch the radio frequency RF resources occupied by the first SIM card to the second SIM card;

In some embodiments, the determining unit is also used to:

The switching unit 20 is also used for:

If the VOLTE function of the second SIM card is not turned on, switch the RF resources to the first SIM card;

In some embodiments, the determining unit is also used to:

The switching unit 20 is also used for:

In some embodiments, the determining unit is also used to:

The switching unit 20 is also used for:

Regarding the devices in the above embodiments, the specific manner in which each module performs operations has been described in detail in the embodiments related to the method, and will not be described in detail here.

An embodiment of the present disclosure provides a communication device, including:

Memory used to store instructions executable by the processor;

Processor, memory connection respectively;

Wherein, the processor is configured to execute the network access method provided by any of the foregoing technical solutions.

The processor may include various types of storage media, which are non-transitory computer storage media that can continue to store information stored thereon after the communication device is powered off.

Here, the communication device includes: a terminal or a network element, and the network element may be any one of the aforementioned first to fourth network elements.

The processor may be connected to the memory through a bus or the like, and be used to read the executable program stored on the memory, for example, at least one of the methods shown in FIGS. 2 to 5 .

FIG. 7 is a block diagram of a terminal 800 according to an exemplary embodiment. For example, the terminal 800 may be a mobile phone, a computer, a digital broadcast user device, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, or the like.

Referring to Figure 7, the terminal 800 may include one or more of the following components: a processing component 802, a memory 804, a power supply component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and communications component 816.

Processing component 802 generally controls the overall operations of terminal 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to generate all or part of the steps of the methods described above. Additionally, processing component 802 may include one or more modules that facilitate interaction between processing component 802 and other components. For example, processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

Memory 804 is configured to store various types of data to support operations at terminal 800. Examples of such data include instructions for any application or method operating on the terminal 800, contact data, phonebook data, messages, pictures, videos, etc. Memory 804 may be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EEPROM), Programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

Power supply component 806 provides power to various components of terminal 800. Power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to terminal 800.

Multimedia component 808 includes a screen that provides an output interface between terminal 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. A touch sensor can not only sense the boundaries of a touch or swipe action, but also detect the duration and pressure associated with the touch or swipe action. In some embodiments, multimedia component 808 includes a front-facing camera and/or a rear-facing camera. When the terminal 800 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front-facing camera and rear-facing camera can be a fixed optical lens system or have a focal length and optical zoom capabilities.

Audio component 810 is configured to output and/or input audio signals. For example, audio component 810 includes a microphone (MIC) configured to receive external audio signals when terminal 800 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signal may be further stored in memory 804 or sent via communication component 816 . In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and a peripheral interface module, which may be a keyboard, a click wheel, a button, etc. These buttons may include, but are not limited to: Home button, Volume buttons, Start button, and Lock button.

Sensor component 814 includes one or more sensors that provide various aspects of status assessment for terminal 800 . For example, the sensor component 814 can detect the open/closed state of the device 800, the relative positioning of components, such as the display and keypad of the terminal 800, the sensor component 814 can also detect the position change of the terminal 800 or a component of the terminal 800, the user The presence or absence of contact with the terminal 800, the terminal 800 orientation or acceleration/deceleration and the temperature change of the terminal 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate wired or wireless communication between the terminal 800 and other devices. The terminal 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In one exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communications component 816 also includes a near field communications (NFC) module to facilitate short-range communications. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

In an exemplary embodiment, the terminal 800 may be configured by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable Gate array (FPGA), controller, microcontroller, microprocessor or other electronic components are implemented for executing the above method.

In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions, such as a memory 804 including instructions, executable by the processor 820 of the terminal 800 to generate the above method is also provided. For example, non-transitory computer-readable storage media may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

Other embodiments of the invention will be readily apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common common sense or customary technical means in the technical field that are not disclosed in the present disclosure. . It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

In some cases, any two of the above technical features can be combined into a new method and technical solution without conflict.

In some cases, any two of the above technical features can be combined into a new equipment technical solution without conflict.

It is to be understood that the present invention is not limited to the precise construction described above and illustrated in the accompanying drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

A network access method, which is executed by a terminal, and the method includes:

When the mobile network coverage at the location of the terminal meets the preset conditions, obtain the mobile network access situation of the first user identification SIM card in the terminal; the terminal is configured with at least the first SIM card and the second SIM card;

When it is determined that the first SIM card accesses the first mobile network according to the mobile network access situation, switch the radio frequency RF resource occupied by the first SIM card to the second SIM card;

Access the second SIM card to the first mobile network based on the RF resource.
The method according to claim 1, wherein when it is determined that the first SIM card accesses the first mobile network according to the mobile network access situation, the radio frequency RF resources occupied by the first SIM card are switched to The second SIM card includes:

When it is determined that the first SIM card accesses the first mobile network according to the mobile network access situation, it is determined whether the long-term evolution voice bearer VOLTE function of the first SIM card is enabled; the first mobile network at least includes: packet Switch PS network;

If the VOLTE function of the first SIM card is not turned on, the radio frequency RF resources occupied by the first SIM card are switched to the second SIM card.
The method of claim 2, further comprising:

If the VOLTE function of the first SIM card is turned on, determine whether the first SIM card accesses the second mobile network within the first preset time period; the second mobile network at least includes: Internet Multimedia System IMS network;

When the first SIM card accesses the second mobile network, the radio frequency RF resources occupied by the first SIM card are switched to the second SIM card.
The method of claim 3, further comprising:

If the first SIM card does not access the second mobile network within the first preset time period, the radio frequency RF resources occupied by the first SIM card will be switched after the end of the first preset time period. Give the second SIM card.
The method of claim 3, further comprising:

After connecting the second SIM card to the first mobile network based on the RF resource, determine whether the VOLTE function of the second SIM card is turned on;

If the VOLTE function of the second SIM card is not enabled, the RF resource is switched to the first SIM card.
The method of claim 5, further comprising:

If the VOLTE function of the second SIM card is turned on, determine whether the second SIM card accesses the second mobile network within a second preset time period;

When the second SIM card accesses the second mobile network, the RF resource is switched to the first SIM card.
The method of claim 6, further comprising:

If the second SIM card does not access the second mobile network within the second preset time period, the RF resource is switched to the first SIM card after the second preset time period. .
The method according to any one of claims 5 to 7, wherein the method further includes:

After switching the RF resource to the first SIM card, if the VOLTE function of the first SIM card is turned on and the first SIM card is not connected to the second mobile network, then in the third Determine whether the first SIM card accesses the second mobile network within a preset period of time;

If the first SIM card accesses the second mobile network within the third preset time period, switch the RF resource to the second SIM card;

If the first SIM card does not access the second mobile network within the third preset time period, the RF resource is switched to the second SIM card after the third preset time period ends.
The method of claim 8, further comprising:

After switching the RF resource to the second SIM card, if the VOLTE function of the second SIM card is turned on and the second SIM card is not connected to the second mobile network, then in the fourth Determine whether the second SIM card accesses the second mobile network within a preset period of time;

If the second SIM card accesses the second mobile network within the fourth preset time period, stop switching of RF resources;

If the second SIM card does not access the second mobile network within the fourth preset time period, the switching of RF resources is stopped after the end of the fourth preset time period.
A network access device, which is applied to a terminal and includes:

An acquisition unit configured to acquire the mobile network access status of the first user identification SIM card in the terminal when the mobile network coverage at the location of the terminal meets the preset conditions; the terminal is configured with at least the first SIM card and Second SIM card;

A switching unit, configured to switch the radio frequency RF resources occupied by the first SIM card to the second SIM card when it is determined that the first SIM card is accessed to the first mobile network according to the mobile network access situation;

An access unit, configured to access the second SIM card to the first mobile network based on the RF resource.
The device according to claim 10, wherein the switching unit is specifically used for:

When it is determined that the first SIM card accesses the first mobile network according to the mobile network access situation, it is determined whether the long-term evolution voice bearer VOLTE function of the first SIM card is enabled; the first mobile network at least includes: packet Switch PS network;

If the VOLTE function of the first SIM card is not turned on, the radio frequency RF resources occupied by the first SIM card are switched to the second SIM card.
The device of claim 11, further comprising:

Determining unit, configured to determine whether the first SIM card accesses the second mobile network within a first preset time period if the VOLTE function of the first SIM card is turned on; the second mobile network at least includes: Internet multimedia system IMS network;

The switching unit is also used for:

When the first SIM card accesses the second mobile network, switch the radio frequency RF resources occupied by the first SIM card to the second SIM card;

If the first SIM card does not access the second mobile network within the first preset time period, the radio frequency RF resources occupied by the first SIM card will be switched after the end of the first preset time period. Give the second SIM card.
The device according to claim 12, wherein the determining unit is further used for:

After connecting the second SIM card to the first mobile network based on the RF resource, determine whether the VOLTE function of the second SIM card is turned on;

The switching unit is also used for:

If the VOLTE function of the second SIM card is not turned on, switch the RF resource to the first SIM card;

If the VOLTE function of the second SIM card is turned on, determine whether the second SIM card accesses the second mobile network within a second preset time period;

When the second SIM card accesses the second mobile network, switch the RF resource to the first SIM card;

If the second SIM card does not access the second mobile network within the second preset time period, the RF resource is switched to the first SIM card after the second preset time period. .
The device according to claim 13, wherein the determining unit is further used for:

After switching the RF resource to the first SIM card, if the VOLTE function of the first SIM card is turned on and the first SIM card is not connected to the second mobile network, then in the third Determine whether the first SIM card accesses the second mobile network within a preset period of time;

The switching unit is also used for:

If the first SIM card accesses the second mobile network within the third preset time period, switch the RF resource to the second SIM card;

If the first SIM card does not access the second mobile network within the third preset time period, the RF resource is switched to the second SIM card after the third preset time period ends.
The device according to claim 14, wherein the determining unit is further used for:

After switching the RF resource to the second SIM card, if the VOLTE function of the second SIM card is turned on and the second SIM card is not connected to the second mobile network, then in the fourth Determine whether the second SIM card accesses the second mobile network within a preset period of time;

The switching unit is also used for:

If the second SIM card accesses the second mobile network within the fourth preset time period, stop switching of RF resources;

If the second SIM card does not access the second mobile network within the fourth preset time period, the switching of RF resources is stopped after the end of the fourth preset time period.
A communication device, including a processor, a memory, and an executable program stored in the memory and capable of being run by the processor, wherein when the processor runs the executable program, it executes any one of claims 1 to 9 The method provided by the item.
A computer storage medium stores an executable program; after the executable program is executed by a processor, the method provided in any one of claims 1 to 9 can be implemented.