Network access method and apparatus for mobile terminal

Abstract

The application discloses a network access method and device of a mobile terminal. The method comprises the following steps: searching for a ground network that can be accessed according to a preset network searching strategy, and calling a ground network baseband chip to access a target ground network when the target ground network is searched; obtaining terminal information and location information of the mobile terminal, and determining a target satellite network corresponding to the terminal information and the location information when no ground network that can be accessed is searched or the signal strength of the target ground network is lower than a preset threshold; and calling a target satellite network baseband chip corresponding to the target satellite network to access the target satellite network. The application solves the technical problem that a mobile terminal cannot flexibly access a satellite network and switch between the satellite network and a ground network in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of communication technology, in particular to a network access method and device of a mobile terminal. BACKGROUND

[0002] Currently, most countries have good ground cellular network coverage, but there are still some areas that are not covered by the ground network or have poor ground network signals, such as deserts, grasslands, and the like. At this time, it is impossible to maintain normal communication by relying on the ground network alone, and therefore satellite communication is needed as a supplement to ground communication. Satellite network is a network system for communication and data transmission by using artificial satellites. Through the satellite network, users can communicate, access the Internet, broadcast, and transmit television within a global range. However, due to the structural limitations of mobile terminals, the mobile terminals cannot flexibly switch between the ground network and the satellite network, and therefore the mobile terminals cannot maintain normal communication when the ground network signal is poor.

[0003] Currently, no effective solution has been proposed for the above problems. SUMMARY

[0004] Embodiments of the present application provide a network access method and device of a mobile terminal to at least solve the technical problem that the mobile terminal cannot flexibly access the satellite network and switch between the ground network and the satellite network in the related art.

[0005] According to an aspect of an embodiment of the present application, a network access method of a mobile terminal is provided, including: searching for an accessible ground network according to a preset network searching strategy, and calling a ground network baseband chip to access a target ground network when the target ground network is searched; when no accessible ground network is searched or the signal strength of the target ground network is lower than a preset threshold, acquiring terminal information and location information of the mobile terminal, and determining a target satellite network corresponding to the terminal information and the location information; and calling a target satellite network baseband chip corresponding to the target satellite network to access the target satellite network.

[0006] Optionally, after calling the target satellite network baseband chip corresponding to the target satellite network to access the target satellite network, the method further includes: periodically searching for an accessible ground network according to the network searching strategy; and when a target ground network is searched, disconnecting the communication connection with the target satellite network, and calling the ground network baseband chip to access the target ground network.

[0007] Optionally, searching the accessible ground network according to the preset network searching strategy comprises: reading the PLMN list stored in the mobile terminal by the application chip, and searching the accessible ground network from the PLMN list, wherein the PLMN list stores a plurality of PLMNs, and the search priority of each PLMN from high to low is: registered PLMN, equivalent PLMN, home PLMN, equivalent home PLMN, user-controlled PLMN, operator-controlled PLMN, and visited PLMN.

[0008] Optionally, after the ground network baseband chip is called to access the target ground network, the method further comprises: periodically detecting the signal strength of the target ground network; when the signal strength is not lower than a preset threshold, maintaining the communication connection with the target ground network; and when the signal strength is lower than the preset threshold, disconnecting the communication connection with the target ground network and accessing the target satellite network.

[0009] Optionally, the terminal information and the location information of the mobile terminal are acquired, and the target satellite network corresponding to the terminal information and the location information is determined, comprising: acquiring the terminal information and the location information of the mobile terminal, wherein the terminal information at least includes the operator information to which the mobile terminal belongs, and the location information at least includes the area information in which the mobile terminal currently locates; reading the satellite PLMN list stored in the mobile terminal by the application chip, wherein the satellite PLMN list stores the networking information of a plurality of satellite networks in a fusion network, and the networking information includes: the area information covered by the satellite network, the operator information allowed to access the satellite network, and the support information of the satellite network provided by the regulations in different areas; and determining the target satellite network corresponding to the terminal information and the location information from the plurality of satellite networks according to the networking information of each satellite network.

[0010] Optionally, if there are a plurality of satellite networks corresponding to the terminal information and the location information, the signal strength of each satellite network corresponding to the terminal information and the location information is detected, and the satellite network with the highest signal strength is determined as the target satellite network.

[0011] Optionally, the ground network baseband chip and the plurality of satellite network baseband chips in the mobile terminal are in a switching relationship, and only one baseband chip can be turned on at the same time.

[0012] According to another aspect of the embodiments of the present application, a network access apparatus of a mobile terminal is also provided, which comprises: a first access module, configured to search for a ground network that can be accessed according to a preset network searching strategy, and to call a ground network baseband chip to access a target ground network when the target ground network is searched for; a determination module, configured to acquire terminal information and location information of the mobile terminal, and to determine a target satellite network corresponding to the terminal information and the location information when no ground network that can be accessed is searched for, or when a signal strength of the target ground network is lower than a preset threshold; and a second access module, configured to call a target satellite network baseband chip corresponding to the target satellite network to access the target satellite network.

[0013] According to another aspect of the embodiments of the present application, a mobile terminal is also provided, which comprises: an application chip, a ground network baseband chip and satellite network baseband chips corresponding to a plurality of satellite networks, wherein the application chip comprises: a memory and a processor, the memory stores a computer program, and the processor is configured to execute the network access method of the mobile terminal in any one of claims 1 to 7 by using the computer program.

[0014] According to another aspect of the embodiments of the present application, a nonvolatile storage medium is also provided, which comprises a stored computer program, wherein a device where the nonvolatile storage medium is located executes the network access method of the mobile terminal by running the computer program.

[0015] In the embodiments of the present application, a ground network that can be accessed is searched according to a preset network searching strategy, and a ground network baseband chip is called to access a target ground network when the target ground network is searched for; terminal information and location information of the mobile terminal are acquired, and a target satellite network corresponding to the terminal information and the location information is determined when no ground network that can be accessed is searched for, or when a signal strength of the target ground network is lower than a preset threshold; and a target satellite network baseband chip corresponding to the target satellite network is called to access the target satellite network. By mounting the ground network baseband chip and the satellite network baseband chip in the application chip of the mobile terminal at the same time, the mobile terminal can access networks with different air interface systems, and by improving the current network searching strategy, the mobile terminal can be automatically switched to a satellite network in the case of a poor ground network or no ground network, so that the normal communication of the mobile terminal is ensured, and the technical problem that the mobile terminal cannot flexibly access a satellite network and switch between the satellite network and a ground network in the related art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this application, illustrate certain illustrative embodiments of the present application and together with the description serve to explain the present application. In the drawings:

[0017] Figure 1 is an optional architecture diagram of network access of a mobile terminal according to an embodiment of the present application;

[0018] Figure 2 is an optional flow diagram of a network access method of a mobile terminal according to an embodiment of the present application;

[0019] Figure 3 is an optional structure diagram of a network access device of a mobile terminal according to an embodiment of the present application;

[0020] Figure 4 is an optional structure diagram of a mobile terminal according to an embodiment of the present application. DETAILED DESCRIPTION

[0021] In order to make the personnel in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work should fall within the scope of protection of the present application.

[0022] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] In order to better understand the embodiments of the present application, first, the following translation explanation is given for some nouns or terms appearing in the description of the embodiments of the present application:

[0024] PLMN (Public Land Mobile Network, Public Land Mobile Network): a network established and operated by the government or its approved operators for the purpose of providing public land mobile communication services to the public.

[0025] Embodiment 1

[0026] At present, although most countries have good ground network coverage, there are still some areas where the ground network is not covered or the ground network signal is poor, and only relying on the ground network in the area cannot normally communicate, in order to solve the above problems, the satellite network 1, the satellite network 2 and the satellite network 3 are fused in the embodiment of the application, that is, a mutual roaming agreement is signed between the three satellite networks, allowing each card number to roam to the other network, in addition, the country list and the operator list allowed to access by each satellite network are shared, and the above information is stored in the mobile terminal, Figure 1 An architecture diagram of network access of a mobile terminal is shown.

[0027] The current satellite network is generally used as a supplement to the ground network, and the existing mobile terminal usually only contains one application chip, and only one baseband chip can be mounted under the application chip, so that the mobile terminal can only use the ground network or can only use the satellite network for communication, and cannot realize free switching between the ground network and the satellite network. The structure of the existing mobile terminal is improved in the embodiment of the application.

[0028] Because the protocol standards between the satellite networks are relatively independent, the protocol standards between the satellite networks may be different, and the protocol standards of the satellite network and the ground network are also different, so the mobile terminal must contain baseband chips of different satellite networks and baseband chips of the ground network.

[0029] As an optional implementation, the mobile terminal in the embodiment of the application uses a design scheme of mounting multiple satellite baseband chips and ground network baseband chips under one application chip, realizes integration of the ground network and the satellite network, and considering the limited space of the mobile phone, a satellite baseband chip with high process can be used, which can be several millimeters in size. The mobile phone can place these small size satellite baseband chips in a limit stacking manner. The satellite baseband chip is basically a single mode chip, that is, a CAT1 capability chip, and the computing capability requirement of the chip is not high, while the ground network baseband chip is a SOC chip, which has superior performance and strong computing capability, so more application data processing can be placed in the ground network baseband chip, thereby ensuring the data processing capability of the mobile terminal.

[0030] Correspondingly, the mobile terminal uses a design scheme of fusing a radio frequency front end and an antenna, because the communication satellite frequency band mainly focuses on the L frequency band and the S frequency band, and the ground communication radio frequency front end and the antenna can contain these frequency bands, so the antenna and most of the radio frequency paths for satellite network and ground network communication can be shared.

[0031] In the embodiments of the present application, taking one application chip under which one ground network baseband chip BP0 and two satellite network baseband chips BP1 and BP2 are mounted as an example, the specific switching relationship between the baseband chips is described. In order to avoid the mutual interference between the baseband chips of the ground network and the satellite network, the performance of the baseband chips is optimized, and then the mobile terminal can be stably connected to the ground network or the satellite network. The ground network baseband chip and the plurality of satellite network baseband chips in the mobile terminal are in switching relationship, that is, only one baseband chip can be opened at the same time. Specifically, the specific switching relationship of BP0, BP1 and BP2 is as follows:

[0032] The mobile terminal is responsible for controlling BP0, BP1 and BP2. The basis for switching the baseband chips is the signal strength and whether the current area exists the ground network. When the mobile terminal opens the ground network baseband chip BP0 and successfully registers, the satellite network baseband chips BP1 and BP2 are continuously closed. When the ground network has no signal, the ground network baseband chip BP is closed and the satellite network baseband chip BP1 or BP2 is opened.

[0033] Based on the fusion of the ground network baseband chip and the satellite network baseband chip, the single terminal can access multiple networks with completely different air interface systems. By migrating part of the mobility management function of the air interface protocol stack from the plurality of baseband chips to the application chip, the single application chip controls the plurality of baseband chips, and then the automatic selection and switching between the ground network and the plurality of satellite networks are realized. The global fusion network coverage of the plurality of satellite networks is formed. Based on this, the mobile terminal can maintain normal communication in the area without ground network coverage or the area with poor ground network signal coverage, such as desert, grassland, and the country or area where the use of the satellite network is limited.

[0034] On the basis of the above mobile terminal, the embodiments of the present application further provide a network access method of a mobile terminal, as shown in Figure 2 The method comprises the following steps:

[0035] Step S202, searching for the accessible ground network according to a preset network searching strategy, and calling the ground network baseband chip to access the target ground network when the target ground network is searched.

[0036] Step S204, when no accessible ground network is searched or the signal strength of the target ground network is lower than a preset threshold, acquiring terminal information and location information of the mobile terminal, and determining a target satellite network corresponding to the terminal information and the location information.

[0037] Step S206, calling the target satellite network baseband chip corresponding to the target satellite network to access the target satellite network.

[0038] The steps of the network access method of the mobile terminal will be described in detail in combination with the specific implementation process.

[0039] As an optional implementation, when the mobile terminal is powered on, the mobile terminal first searches for the accessible ground network according to a preset network search strategy. Specifically, the mobile terminal can read the PLMN list stored in the mobile terminal by applying a chip, and search for the accessible ground network from the PLMN list. The PLMN list stores a plurality of PLMNs, and the search priorities of the PLMNs from high to low are as follows: Registered PLMN (RPLMN), Equivalent PLMN (EPLMN), Home PLMN (HPLMN), Equivalent Home PLMN (EHPLMN), User Controlled PLMN (UPLMN), Operator Controlled PLMN (OPLMN), and Visited PLMN (VPLMN).

[0040] It should be noted that the registered PLMN is the PLMN registered by the mobile terminal before the last power-off or disconnection; the equivalent PLMN is the PLMN in the same position as the currently selected PLMN; the home PLMN is the PLMN to which the user of the mobile terminal belongs, and the mobile country code and mobile network code in the international mobile subscriber identity on the USIM card of each mobile terminal are consistent with the mobile country code and mobile network code in the home PLMN, i.e., the home PLMN corresponding to a user is only one; the equivalent home PLMN is the home PLMN in the same position as the currently selected PLMN; the user controlled PLMN is a parameter related to PLMN selection stored on the USIM card; the operator controlled PLMN is a parameter related to PLMN stored on the SIM card or the mobile terminal; in addition to the above PLMNs, there is another type of PLMN, i.e., forbidden PLMN (FPLMN), which is used to record the forbidden access PLMN, and therefore the forbidden PLMN is not applied in the actual network search process.

[0041] Optionally, the complete ground network access process is as follows: first, the mobile terminal completes preparation for accepting base station downlink data, completes parameter configuration of the mobile terminal network side and issues the parameter configuration information to the non-access layer of the mobile terminal, to prepare for subsequent cell selection and cell reselection; then, in parallel with the process of accepting system messages, PLMN selection is performed according to the parameter configuration information received by the non-access layer of the mobile terminal, to select a network of an operator to which the user is subscribed to camp on; the non-access layer will send a PLMN selection request to the application chip through the interface between the baseband chip and the application chip, the application chip will select a corresponding PLMN according to an internal strategy after receiving the PLMN selection request, and then send the PLMN selection result to the non-access layer, the non-access layer will send the selection to the high layer of the protocol stack after receiving the PLMN selection result, and the high layer of the protocol stack will perform corresponding PLMN network selection; after completing the PLMN selection, the access network high layer will complete cell reselection according to the best network principle.

[0042] After calling the ground network baseband chip to access the target ground network, the signal strength of the target ground network also needs to be periodically detected; when the signal strength is not lower than a preset threshold, the communication connection with the target ground network is maintained; when the signal strength is lower than the preset threshold, the communication connection with the target ground network is disconnected, and the target satellite network is accessed.

[0043] Considering that different satellite networks cover different areas, and regulations in different areas also limit access to different satellite networks, when accessing a satellite network, the position information of the mobile terminal needs to be obtained first.

[0044] Specifically, the satellite network can be accessed in the following manner: terminal information and position information of the mobile terminal are obtained, wherein the terminal information at least includes operator information to which the mobile terminal belongs, and the position information at least includes area information in which the mobile terminal currently locates; the satellite PLMN list stored by the mobile terminal is read by the application chip, wherein the satellite PLMN list stores networking information of a plurality of satellite networks in a fusion network, and the networking information includes: area information covered by the satellite network, operator information allowed to access the satellite network, and support information of the satellite network in different areas according to regulations; the target satellite network corresponding to the terminal information and the position information is determined from the plurality of satellite networks according to the networking information of each satellite network.

[0045] When the mobile terminal needs to access the satellite network, i.e. the location where the mobile terminal is located is not covered by the ground network or the signal strength of the ground network is lower than a preset threshold, the mobile terminal can be positioned by a satellite network such as a GPS (Global Positioning System), a GLONASS (Global Navigation Satellite System), a Galileo (Galileo Satellite Navigation System), etc., to determine the location information of the mobile terminal, and the corresponding satellite network that can be accessed is determined according to the location information, and then the corresponding satellite network is used for communication.

[0046] Optionally, if there are multiple satellite networks corresponding to the terminal information and the location information, the signal strengths of the satellite networks corresponding to the terminal information and the location information can be detected, and the satellite network with the highest signal strength is determined as the target satellite network.

[0047] Through the above monitoring of the signal strength, the satellite network with the optimal current signal strength can be confirmed, and when the signal of a certain satellite network is unstable, the current satellite network can be switched to another satellite network with the highest signal strength, so as to maintain the stability of the network and ensure normal communication.

[0048] Optionally, after the target satellite network baseband chip corresponding to the target satellite network is called to access the target satellite network, the mobile terminal can periodically search for an accessible ground network according to a network searching strategy; when the target ground network is searched, the communication connection with the target satellite network is disconnected, and the ground network baseband chip is called to access the target ground network.

[0049] A complete network access process is as follows: when a user moves to an area without ground network coverage or the signal strength of the ground network is lower than a preset threshold, the mobile terminal can know the currently residing country through the PLMN, and the mobile terminal can query the satellite network allowed to be accessed in the country from the residing country, for example, it is queried that the satellite network allowed to be accessed in the country is satellite network 1, then the satellite network baseband chip corresponding to the satellite network 1 is opened by the application chip in the mobile terminal, and the network searching and registration process of the satellite network 1 is performed, and when the mobile terminal is in an idle state, the baseband chip of the ground network is periodically opened for signal measurement, if the signal strength of the ground network is greater than the preset threshold, the satellite network baseband chip corresponding to the satellite network 1 is immediately closed, and the corresponding ground network baseband chip is opened, and the network searching and registration process of the ground network is performed, if the signal strength of the ground network is lower than the preset threshold, the mobile terminal continues to reside in the satellite network 1.

[0050] In the embodiments of the present application, a ground network that can be accessed is searched according to a preset search strategy, and when a target ground network that can be accessed is searched, a ground network baseband chip is called to access the target ground network; when no ground network that can be accessed is searched, or the signal strength of the target ground network is lower than a preset threshold, terminal information and location information of the mobile terminal are acquired, and a target satellite network corresponding to the terminal information and the location information is determined; a target satellite network baseband chip corresponding to the target satellite network is called to access the target satellite network. Wherein, by mounting the ground network baseband chip and the satellite network baseband chip in the application chip in the mobile terminal at the same time, the mobile terminal can access networks with different air interface systems, and by improving the current search strategy, the mobile terminal can automatically switch to the satellite network in the case of poor or no ground network, so as to ensure the normal communication of the mobile terminal, and effectively solve the technical problem that the mobile terminal cannot flexibly access the satellite network and switch between the satellite network and the ground network in the related art.

[0051] Embodiment 2

[0052] According to the embodiments of the present application, a network access device of a mobile terminal for implementing the network access method of the mobile terminal in Embodiment 1 is also provided, as shown in Figure 3 The network access device of the mobile terminal at least includes a first access module 31, a determination module 32 and a second access module 33, wherein:

[0053] The first access module 31 can search a ground network that can be accessed according to a preset search strategy, and when a target ground network that can be accessed is searched, a ground network baseband chip is called to access the target ground network;

[0054] The determination module 32 can acquire terminal information and location information of the mobile terminal when no ground network that can be accessed is searched, or the signal strength of the target ground network is lower than a preset threshold, and determine a target satellite network corresponding to the terminal information and the location information;

[0055] The second access module 33 can call a target satellite network baseband chip corresponding to the target satellite network to access the target satellite network.

[0056] The steps of the network access device of the mobile terminal will be described below in combination with the specific implementation process.

[0057] As an optional implementation, when the mobile terminal is powered on, the first access module first searches for the accessible ground network according to a preset network searching strategy. Specifically, the mobile terminal can read the PLMN list stored in the mobile terminal by applying the chip, and search for the accessible ground network from the PLMN list, wherein the PLMN list stores a plurality of PLMNs, and the search priority of each type of PLMN from high to low is as follows: registered PLMN, equivalent PLMN, home PLMN, equivalent home PLMN, user-controlled PLMN, operator-controlled PLMN, and visited PLMN.

[0058] It should be noted that the registered PLMN is the PLMN registered by the mobile terminal before the last power-off or disconnection; the equivalent PLMN is a PLMN in the same position as the currently selected PLMN by the terminal; the home PLMN is the PLMN to which the user of the mobile terminal belongs, and the mobile country code and mobile network code in the international mobile subscriber identity on the USIM card of each mobile terminal are consistent with the mobile country code and mobile network code in the home PLMN, i.e., there is only one home PLMN corresponding to a user; the equivalent home PLMN is a home PLMN in the same position as the currently selected PLMN by the terminal; the user-controlled PLMN is a parameter related to PLMN selection stored on the USIM card; the operator-controlled PLMN is a parameter related to PLMN stored on the SIM card or the mobile terminal; in addition to the above PLMNs, there is another type of PLMN, i.e., the disabled PLMN, which is used to record the PLMNs that are prohibited to access, and therefore the disabled PLMN will not be applied in the actual network searching process.

[0059] Optionally, the complete ground network access process is as follows: first, the mobile terminal completes the preparation for accepting the downlink data of the base station, completes the parameter configuration of the network side of the mobile terminal, and issues the parameter configuration information to the non-access layer of the mobile terminal, to prepare for subsequent cell selection and cell reselection; then, in parallel with the process of accepting the system message, the PLMN selection is performed according to the parameter configuration information received by the non-access layer of the mobile terminal, to select a network of an operator to which the user subscribes to reside, the non-access layer sends a PLMN selection request to the application chip through the interface between the baseband chip and the application chip, the application chip selects the corresponding PLMN according to the internal strategy after receiving the PLMN selection request, and then sends the PLMN selection result to the non-access layer, the non-access layer receives the PLMN selection result and sends the selection to the high layer of the protocol stack, i.e., performs the corresponding PLMN network selection; after the PLMN selection is completed, the access network high layer completes the cell reselection according to the best network principle.

[0060] After the target ground network is accessed by calling the ground network baseband chip, the signal strength of the target ground network also needs to be periodically detected; when the signal strength is not lower than a preset threshold, the communication connection with the target ground network is maintained; when the signal strength is lower than the preset threshold, the communication connection with the target ground network is disconnected, and the target satellite network is accessed.

[0061] Considering that different satellite networks cover different areas, and regulations in different areas also limit the access of different satellite networks, when accessing the satellite network, the position information of the mobile terminal needs to be acquired first.

[0062] Specifically, the second access module can access the satellite network in the following manner: acquiring terminal information and position information of the mobile terminal, wherein the terminal information at least includes operator information to which the mobile terminal belongs, and the position information at least includes area information in which the mobile terminal currently locates; reading a satellite PLMN list stored in the mobile terminal by the application chip, wherein the satellite PLMN list stores networking information of a plurality of satellite networks in a fusion network, and the networking information includes: area information covered by the satellite network, operator information allowed to access the satellite network, and support information of the satellite network in different areas according to regulations; and determining a target satellite network corresponding to the terminal information and the position information from the plurality of satellite networks according to the networking information of each satellite network.

[0063] When the mobile terminal needs to access the satellite network, it means that the location where the mobile terminal locates is not covered by the ground network or the signal strength of the ground network is lower than a preset threshold. At this time, the mobile terminal can be positioned by a satellite network such as GPS, GLONASS, Galileo, etc., to determine the position information of the mobile terminal, and the corresponding satellite network that can be accessed can be determined according to the position information, and then the corresponding satellite network is used for communication.

[0064] Optionally, if there are a plurality of satellite networks corresponding to the terminal information and the position information, the signal strengths of the satellite networks corresponding to the terminal information and the position information can be detected, and the satellite network with the highest signal strength is determined as the target satellite network.

[0065] Through the above monitoring of the signal strength, the satellite network with the optimal current signal strength can be confirmed, and when the signal of a certain satellite network is unstable, the current satellite network can be switched to another satellite network with the highest signal strength, so as to maintain the stability of the network and ensure normal communication.

[0066] Optionally, after the target satellite network corresponding to the target satellite network baseband chip is called to access the target satellite network, the ground network that can be accessed can also be periodically searched according to a search strategy; when the target ground network that can be accessed is searched, the communication connection with the target satellite network is disconnected, and the target ground network is accessed by calling the ground network baseband chip.

[0067] A complete network access procedure is as follows: when a user moves to an area without ground network coverage or the ground network signal is lower than a preset threshold, the mobile terminal can know the current residence country through the PLMN, the mobile terminal can query the satellite network allowed to access in the country from the residence country, for example, it is queried that the satellite network allowed to access in the country is satellite network 1, then the satellite network baseband chip corresponding to the satellite network 1 is opened through the application chip in the mobile terminal, and the network search registration procedure of the satellite network 1 is performed, and when the mobile terminal is in an idle state, the baseband chip of the ground network is periodically opened for signal measurement, if the signal strength of the ground network is greater than the preset threshold, the satellite network baseband chip corresponding to the satellite network 1 is immediately closed, and the corresponding ground network baseband chip is opened, and the network search registration procedure of the ground network is performed, if the signal strength of the ground network is lower than the preset threshold, the satellite network 1 is continued to be camped.

[0068] It should be noted that the modules in the network access device of the mobile terminal in the embodiments of the present application correspond one by one to the implementation steps of the network access method of the mobile terminal in Embodiment 1, since Embodiment 1 has been described in detail, the details not embodied in this embodiment can be referred to Embodiment 1, and will not be described in detail here.

[0069] Embodiment 3

[0070] According to the embodiments of the present application, a mobile terminal is also provided, as shown in the figure, the mobile terminal comprises: an application chip 41, a ground network baseband chip 42 and satellite network baseband chips 43(1~n) corresponding to a plurality of satellite networks, wherein the application chip comprises: a memory and a processor, the memory stores a computer program, and the processor is configured to execute the network access method of the mobile terminal in Embodiment 1 through the computer program. Figure 4

[0071] Specifically, the computer program performs the following steps when running: searching for an accessible ground network according to a preset network search strategy, and when searching for an accessible target ground network, calling the ground network baseband chip to access the target ground network; when no accessible ground network is searched or the signal strength of the target ground network is lower than a preset threshold, acquiring terminal information and location information of the mobile terminal, and determining a target satellite network corresponding to the terminal information and the location information; calling the target satellite network baseband chip corresponding to the target satellite network to access the target satellite network.

[0072] According to the embodiments of the present application, a non-volatile storage medium is also provided, the non-volatile storage medium comprises a stored computer program, wherein the device where the non-volatile storage medium is located executes the network access method of the mobile terminal in Embodiment 1 by running the computer program.​

[0073] Specifically, the non-volatile storage medium is located in a device, and the device implements the following steps by running the computer program: searching for an accessible ground network according to a preset network searching strategy, and when a target ground network is searched for, calling a ground network baseband chip to access the target ground network; when no accessible ground network is searched for, or a signal strength of the target ground network is lower than a preset threshold, acquiring terminal information and location information of the mobile terminal, and determining a target satellite network corresponding to the terminal information and the location information; and calling a target satellite network baseband chip corresponding to the target satellite network to access the target satellite network.

[0074] According to the embodiments of the present application, a processor is also provided, which is used for running a computer program, wherein the computer program performs the network access method of the mobile terminal in the embodiment 1 when running.

[0075] Specifically, the computer program performs the following steps when running: searching for an accessible ground network according to a preset network searching strategy, and when a target ground network is searched for, calling a ground network baseband chip to access the target ground network; when no accessible ground network is searched for, or a signal strength of the target ground network is lower than a preset threshold, acquiring terminal information and location information of the mobile terminal, and determining a target satellite network corresponding to the terminal information and the location information; and calling a target satellite network baseband chip corresponding to the target satellite network to access the target satellite network.

[0076] The above embodiment numbers are only for description, and do not represent the advantages and disadvantages of the embodiments.

[0077] In the above embodiments of the present application, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0078] In the several embodiments provided by the present application, it should be understood that the disclosed technology can be implemented in other ways. Of course, the unit division in the above device embodiment is only a logical function division, and there can be another division manner during actual implementation; for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between different units, can be indirect couplings or communication connections through some interfaces, units or modules, and can be electrical or other forms.

[0079] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e. may be located in one place, or may be distributed to multiple units. Part or all of the units may be selected according to actual needs to achieve the purpose of the embodiment.

[0080] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware, or in the form of a software functional unit.

[0081] If the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application, the essential part or contribution to the prior art, or all or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, including a plurality of instructions for causing a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the embodiments of the present application. The aforementioned storage medium includes: a U disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a mobile hard disk, a magnetic disk or an optical disk, and various program code storage media.

[0082] The above is only the preferred embodiment of the present application, and it should be pointed out that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.

Claims

1. A network access method of a mobile terminal, characterized by, The application chip of the mobile terminal is hung with a ground network baseband chip and a plurality of satellite network baseband chips corresponding to a plurality of satellite networks, and the method comprises: searching for an accessible ground network according to a preset network searching strategy, and calling the ground network baseband chip to access a target ground network found to be accessible; when no accessible ground network is found or the signal strength of the target ground network is lower than a preset threshold, acquiring terminal information and location information of the mobile terminal and determining a target satellite network corresponding to the terminal information and the location information; calling a target satellite network baseband chip corresponding to the target satellite network to access the target satellite network; wherein searching for an accessible ground network according to a preset network searching strategy comprises reading a public land mobile network (PLMN) list stored in the mobile terminal through the application chip and searching for an accessible ground network from the PLMN list; determining a target satellite network corresponding to the terminal information and the location information comprises reading a satellite PLMN list stored in the mobile terminal through the application chip, wherein the satellite PLMN list stores networking information of a plurality of satellite networks in a fusion network; and determining the target satellite network corresponding to the terminal information and the location information from the plurality of satellite networks according to the networking information of each satellite network.

2. The method of claim 1, wherein, After calling the target satellite network baseband chip corresponding to the target satellite network to access the target satellite network, the method further comprises: periodically searching for an accessible ground network according to the network searching strategy; when the target ground network is found to be accessible, disconnecting the communication connection with the target satellite network and calling the ground network baseband chip to access the target ground network.

3. The method of claim 1, wherein: the PLMN list stores a plurality of types of PLMNs, and the search priority of each type of PLMN from high to low is as follows: a registered PLMN, an equivalent PLMN, a home PLMN, an equivalent home PLMN, a user-controlled PLMN, an operator-controlled PLMN, and a visited PLMN.

4. The method of claim 1, wherein, After calling the ground network baseband chip to access the target ground network, the method further comprises: periodically detecting the signal strength of the target ground network; when the signal strength is not lower than the preset threshold, maintaining the communication connection with the target ground network; when the signal strength is lower than the preset threshold, disconnecting the communication connection with the target ground network and accessing the target satellite network.

5. The method of claim 1, wherein: the terminal information at least includes operator information to which the mobile terminal belongs, and the location information at least includes regional information in which the mobile terminal currently locates; the networking information includes regional information covered by a satellite network, operator information allowed to access the satellite network, and support information of the satellite network in different regions according to regulations.

6. The method of claim 5, wherein, The method further comprises: If there are multiple satellite networks corresponding to the terminal information and the location information, signal strengths of each satellite network corresponding to the terminal information and the location information are detected, and a satellite network with the highest signal strength is determined as the target satellite network.

7. The method of any one of claims 1-6, characterized in that, The ground network baseband chip and the plurality of satellite network baseband chips in the mobile terminal are in a switching relationship, and only one baseband chip can be turned on at the same time.

8. A network access apparatus of a mobile terminal, characterized by comprising: The application chip of the mobile terminal is hung with the ground network baseband chip and the plurality of satellite baseband chips, and the device comprises: The first access module is configured to search for accessible ground networks according to a preset network searching strategy, and call the ground network baseband chip to access the target ground network when an accessible target ground network is searched, wherein searching for accessible ground networks according to the preset network searching strategy comprises reading a public land mobile network (PLMN) list stored in the mobile terminal through the application chip, and searching for accessible ground networks from the PLMN list; The determination module is configured to obtain terminal information and location information of the mobile terminal when no accessible ground network is searched or the signal strength of the target ground network is lower than a preset threshold, and determine a target satellite network corresponding to the terminal information and the location information, wherein determining the target satellite network corresponding to the terminal information and the location information comprises reading a satellite PLMN list stored in the mobile terminal through the application chip, the satellite PLMN list storing networking information of a plurality of satellite networks integrated into a network, and determining the target satellite network corresponding to the terminal information and the location information from the plurality of satellite networks according to the networking information of each satellite network; The second access module is configured to call a target satellite network baseband chip corresponding to the target satellite network to access the target satellite network.

9. A mobile terminal, characterized by Comprise: The application chip, the ground network baseband chip, and the satellite network baseband chips corresponding to the plurality of satellite networks, wherein The application chip comprises a memory and a processor, the memory stores a computer program, and the processor is configured to execute the network access method of the mobile terminal in any one of claims 1-7 through the computer program.

10. A non-volatile storage medium, comprising: The non-volatile storage medium comprises a stored computer program, wherein the device in which the non-volatile storage medium is located executes the network access method of the mobile terminal in any one of claims 1-7 by running the computer program.

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