CN109996315B - Network searching method and device of multi-card multi-standby terminal, storage medium and electronic equipment - Google Patents

Network searching method and device of multi-card multi-standby terminal, storage medium and electronic equipment Download PDF

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Publication number
CN109996315B
CN109996315B CN201810002914.XA CN201810002914A CN109996315B CN 109996315 B CN109996315 B CN 109996315B CN 201810002914 A CN201810002914 A CN 201810002914A CN 109996315 B CN109996315 B CN 109996315B
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sim card
cell
frequency point
network registration
standard
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CN109996315A (en
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刘翼
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Beijing Xiaomi Pinecone Electronic Co Ltd
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Beijing Xiaomi Pinecone Electronic Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/16Discovering, processing access restriction or access information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/18Selecting a network or a communication service
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W60/00Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/06Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The disclosure relates to a network searching method, a device, a storage medium and an electronic device of a multi-card multi-standby terminal, wherein the method comprises the following steps: when a second SIM card which is consistent with the system type and the system type priority order of the first SIM card exists in the terminal and the first SIM card completes network registration in a first system, determining whether first frequency point information of a first resident cell of the first SIM card is matched with the second SIM card; when the first frequency point information is matched with the second SIM card, network registration of the second SIM card is carried out according to the first frequency point information; when the second SIM card exists in the terminal but the network registration of the first SIM card in the first system fails, determining a second system according to the priority sequence of the system types; and performing network registration of the second SIM card in the second standard. The network searching process of other SIM cards can be simplified through the successful or failed network searching result of one SIM card and the system information of all the SIM cards, so that the terminal startup time increased by multi-card network searching is reduced.

Description

Network searching method and device of multi-card multi-standby terminal, storage medium and electronic equipment
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a network searching method and apparatus for a multi-card multi-standby terminal, a storage medium, and an electronic device.
Background
With the continuous development of mobile terminal technology, more and more users tend to have two or more mobile phone numbers at the same time, so that the product form of a dual-card dual-standby or even multi-card multi-standby mobile phone appears in the communication market. When the dual-card dual-standby or multi-card multi-standby mobile phone is used, a user can enjoy mobile services brought by multiple numbers only by carrying one mobile phone supporting simultaneous communication of two or more SIM cards. Such a mobile phone has been developed as a mainstream in domestic and international markets at present.
Taking a dual-card dual-standby mobile phone as an example, in the related art, after the mobile phone is turned on, the system sequentially and respectively performs network searching operations on the main SIM card and the auxiliary SIM card, so that the dual-card dual-standby mobile phone needs a longer turning-on time than a single-card mobile phone to complete network searching and network registration operations of two cards. Particularly, if two SIM cards of a mobile phone need to access a 4G network, since the frequency band allocated to 4G in the 3GPP protocol is very wide, it may take a long time to scan the energy of the frequency point, and the phenomenon of increasing the power-on time of the mobile phone will be more obvious.
Disclosure of Invention
In order to overcome the problems in the related art, the present disclosure provides a network searching method and apparatus for a multi-card multi-standby terminal, a storage medium, and an electronic device.
According to a first aspect of the embodiments of the present disclosure, a network searching method for a multi-card multi-standby terminal is provided, which includes:
determining whether a second SIM card which is consistent with the system type and the system type priority order of the first user identity SIM card exists in the terminal;
when the second SIM card exists in the terminal and the first SIM card completes network registration in a first standard, determining whether first frequency point information of a first resident cell of the first SIM card is matched with the second SIM card, wherein the first SIM card is a main card in the terminal;
when the first frequency point information is determined to be matched with the second SIM card, network registration of the second SIM card is carried out according to the first frequency point information;
when the second SIM card exists in the terminal but the network registration of the first SIM card in the first system fails, determining a second system according to the priority sequence of the system types;
and performing network registration of the second SIM card in the second standard.
Optionally, the method further includes:
when it is determined that the first frequency point information is not matched with the second SIM card, obtaining first prior information of the first SIM card in network registration in the first standard, where the first prior information includes: the first SIM card performs network registration in the first standard and traverses cell information of all cells;
before the second SIM card performs network registration in the first standard, screening one or more unmatched cells from all cells traversed by the first prior information during the network registration in the first standard;
and when the second SIM card carries out network registration in the first standard, filtering the unmatched cells.
Optionally, after the network registration of the second SIM card in the second standard is performed, the method further includes:
determining whether second frequency point information of a second resident cell of the second SIM card is matched with the first SIM card;
when the second frequency point information is determined to be matched with the first SIM card, network registration of the first SIM card is carried out according to the second frequency point information;
when it is determined that the second frequency point information is not matched with the first SIM card, obtaining second prior information of the second SIM card in the second standard during network registration, where the second prior information includes: the second SIM card performs network registration in the second standard according to the cell information of all traversed cells;
screening one or more unmatched cells from all cells traversed by the second priori information during network registration in the second standard;
and performing network registration of the first SIM card again in the second standard, and filtering the unmatched cells when performing network registration.
Optionally, the determining whether the first frequency point information of the first residential cell of the first SIM card is matched with the second SIM card includes:
determining whether the frequency point set stored in the second SIM card contains the first frequency point;
when the frequency point set comprises the first frequency point, determining that the first frequency point information is matched with the second SIM card;
when the frequency point set does not contain the first frequency point, determining whether the first frequency point is located in the range of the access frequency band of the second SIM card;
when the first frequency point is located in the access frequency range of the second SIM card, determining that the first frequency point information is matched with the second SIM card; alternatively, the first and second electrodes may be,
and when the first frequency point is not in the range of the access frequency band of the second SIM card, determining that the first frequency point information is not matched with the second SIM card.
Optionally, the cell information includes at least one of the following: the method comprises the following steps of screening one or more unmatched cells from all cells traversed by network registration according to the first prior information, wherein the selected unmatched cells comprise at least one of the following conditions:
when the signal intensity of a first cell in all the cells is smaller than a preset threshold value, determining the first cell as a unmatched cell, wherein the first cell is any one of all the cells;
determining the first cell as a non-matching cell when the first SIM card and the second SIM card belong to a first operator and the first cell belongs to a second operator different from the first operator;
when the first cell is a cell which is forbidden to be accessed, determining the first cell as a non-matching cell;
and when the network location area or the roaming area or the routing area where the first cell is located is forbidden, determining the first cell as a non-matching cell.
Optionally, the method further includes:
when the first SIM card and the second SIM card belong to different operators, judging whether strong cells of a Registered Public Land Mobile Network (RPLMN) and a Home Public Land Mobile Network (HPLMN) to which the second SIM card belongs exist in all cells traversed by the first SIM card during network registration in the first standard;
and when the strong cell exists, the strong cell is used as a reference cell to guide the second SIM card to perform network registration in the first standard.
According to a second aspect of the embodiments of the present disclosure, a network searching apparatus for a multi-card multi-standby terminal is provided, the apparatus includes:
the SIM card identification module is used for determining whether a second SIM card which is consistent with the system type and the system type priority order of the first user identity identification SIM card exists in the terminal;
the frequency point information matching module is used for determining whether first frequency point information of a first resident cell of the first SIM card is matched with the second SIM card when the second SIM card exists in the terminal and the first SIM card completes network registration in a first standard, wherein the first SIM card is a main card in the terminal;
the first network registration module is used for performing network registration on the second SIM card according to the first frequency point information when the first frequency point information is determined to be matched with the second SIM card;
the system determining module is used for determining a second system according to the system type priority order when the second SIM card exists in the terminal but the network registration of the first SIM card in the first system fails;
and the second network registration module is used for performing network registration of the second SIM card in the second standard.
Optionally, the apparatus further comprises:
a priori information obtaining module, configured to obtain first priori information of the first SIM card in network registration in the first standard when it is determined that the first frequency point information is not matched with the second SIM card, where the first priori information includes: the first SIM card performs network registration in the first standard and traverses cell information of all cells;
the cell screening module is used for screening one or more unmatched cells from all cells traversed by the second SIM card during network registration in the first standard according to the first prior information before the second SIM card performs network registration in the first standard;
and the cell filtering module is used for filtering the unmatched cells when the second SIM card carries out network registration in the first standard.
Optionally, the frequency point information matching module is further configured to:
determining whether second frequency point information of a second resident cell of the second SIM card is matched with the first SIM card;
the first network registration module is further configured to perform network registration of the first SIM card according to the second frequency point information when it is determined that the second frequency point information matches the first SIM card;
the prior information obtaining module is further configured to obtain second prior information of the second SIM card during network registration in the second standard when it is determined that the second frequency point information is not matched with the first SIM card, where the second prior information includes: the second SIM card performs network registration in the second standard according to the cell information of all traversed cells;
the cell screening module is further configured to screen one or more unmatched cells from all cells traversed by the second priori information during network registration in the second standard;
and the cell filtering module is further configured to perform network registration of the first SIM card again in the second standard, and filter the unmatched cell when performing network registration.
Optionally, the first frequency point information includes a first frequency point of the first residential cell, and the frequency point information matching module includes:
a frequency point determining submodule, configured to determine whether the frequency point set stored in the second SIM card includes the first frequency point;
a first matching determination submodule, configured to determine that the first frequency point information matches the second SIM card when the frequency point set includes the first frequency point;
the range determining submodule is used for determining whether the first frequency point is located in the range of the access frequency band of the second SIM card when the frequency point set does not contain the first frequency point;
the second matching determination submodule is used for determining that the first frequency point information is matched with the second SIM card when the first frequency point is positioned in the range of the access frequency band of the second SIM card; alternatively, the first and second electrodes may be,
and when the first frequency point is not in the range of the access frequency band of the second SIM card, determining that the first frequency point information is not matched with the second SIM card.
Optionally, the cell information includes at least one of the following: the cell screening module is used for at least one of the following:
when the signal intensity of a first cell in all the cells is smaller than a preset threshold value, determining the first cell as a unmatched cell, wherein the first cell is any one of all the cells;
determining the first cell as a non-matching cell when the first SIM card and the second SIM card belong to a first operator and the first cell belongs to a second operator different from the first operator;
when the first cell is a cell which is forbidden to be accessed, determining the first cell as a non-matching cell;
and when the network location area or the roaming area or the routing area where the first cell is located is forbidden, determining the first cell as a non-matching cell.
Optionally, the apparatus further comprises:
a strong cell determining module, configured to determine, when the first SIM card and the second SIM card belong to different operators, whether a strong cell of a registered public land mobile network RPLMN and a home public land mobile network HPLMN to which the second SIM card belongs exists in all cells traversed by the first SIM card during network registration in the first standard;
and the third network registration module is used for taking the strong cell as a reference cell to guide the second SIM card to perform network registration in the first standard when the strong cell exists.
According to a third aspect of embodiments of the present disclosure, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method described in the first aspect of embodiments of the present disclosure.
In a fourth aspect of the embodiments of the present disclosure, an electronic device is provided, including:
the computer-readable storage medium of the third aspect of the embodiments of the present disclosure; and
one or more processors to execute the computer program in the computer-readable storage medium.
The network searching method, the network searching device, the storage medium and the electronic equipment of the multi-card multi-standby terminal can determine whether a second SIM card which is consistent with the system type and the system type priority order of a first user identity identification SIM card exists in the terminal; when the second SIM card exists in the terminal and the first SIM card completes network registration in a first mode, determining whether first frequency point information of a first resident cell of the first SIM card is matched with the second SIM card, wherein the first SIM card is a main card in the terminal; when the first frequency point information is matched with the second SIM card, network registration of the second SIM card is carried out according to the first frequency point information; when the second SIM card exists in the terminal but the network registration of the first SIM card in the first system fails, determining a second system according to the priority sequence of the system types; and performing network registration of the second SIM card in the second standard. The network searching process of other SIM cards can be simplified through the successful or failed network searching result of one SIM card and the system information of all the SIM cards, so that the terminal startup time increased by multi-card network searching is reduced.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a flowchart illustrating a network searching method of a multi-card multi-standby terminal according to an exemplary embodiment of the present application;
fig. 2 is a flowchart illustrating another network searching method of a multi-card multi-standby terminal according to the embodiment shown in fig. 1;
fig. 3 is a flowchart illustrating a network searching method of a multi-card multi-standby terminal according to another embodiment shown in fig. 1;
fig. 4 is a flow chart illustrating a method of cell match confirmation according to the embodiment shown in fig. 2;
fig. 5 is a flowchart illustrating a network searching method of a multi-card multi-standby terminal according to another embodiment shown in fig. 2;
fig. 6 is a block diagram illustrating a network searching apparatus of a multi-card multi-standby terminal according to an exemplary embodiment of the present application;
fig. 7 is a block diagram of another network searching apparatus of a multi-card multi-standby terminal according to the embodiment shown in fig. 6;
fig. 8 is a block diagram of a frequency point information matching apparatus according to the embodiment shown in fig. 7;
fig. 9 is a block diagram of a network searching apparatus of another multi-card multi-standby terminal according to the embodiment shown in fig. 7;
FIG. 10 is a block diagram illustrating an electronic device according to an exemplary embodiment of the present application.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
Fig. 1 is a flowchart illustrating a network searching method of a multi-card multi-standby terminal according to an exemplary embodiment of the present application, and as shown in fig. 1, the method may include the following steps 101, 102, and 103 or steps 101, 104, and 105.
Step 101, determining whether a second SIM card consistent with the system type and the system type priority order of the first SIM card is present in the terminal.
For example, the terminal may be a dual-open dual-standby terminal or a multi-card multi-standby terminal, and when the terminal is opened, before network searching operation is performed on the SIM cards in the terminal, system types and system type priority orders of all the SIM cards are confirmed first. The system types may include: any one or more of 4G (including TD-LTE (Time Division Long Term Evolution), FDD-LTE (Frequency Division duplex Long Term Evolution), 3G (including TDSCDMA (Time Division-Synchronous Code Division Multiple Access), WCDMA (Wideband Code Division Multiple Access), etc.), and GSM (Global System for Mobile Communication). Most terminals are set to 4G-3G-2G relative to the system type priority order of the SIM cards using the 4G system, and whether the system type priority order is unified or not is confirmed before searching the network in order to prevent special situations or situations that the highest systems supported by two SIM cards are different. When any one of the system types supported by the two SIM cards and the priority orders of the system types are different, respectively performing network searching operation on the two SIM cards through a normal flow, otherwise, performing normal network searching and network registration operation for entering the first SIM card, and determining to continue to perform the step 102 or the step 104 according to the network searching result of the first SIM card.
Step 102, when the second SIM card exists in the terminal and the first SIM card completes network registration in the first standard, determining whether the first frequency point information of the first residential cell of the first SIM card is matched with the second SIM card.
And 103, when the first frequency point information is determined to be matched with the second SIM card, performing network registration of the second SIM card according to the first frequency point information.
Illustratively, when the first SIM card completes network registration, the terminal obtains first frequency point information of a first residential cell in which the first SIM card is currently and successfully camped. The second SIM card can determine whether to use the first frequency point information as the guide of searching the network by itself according to the matching result of the first frequency point information and the available cell frequency points of itself. When the first frequency point information is determined to be matched, the second SIM card can skip the network searching stage, and directly perform targeted network registration, that is, calculate the paging position through the first frequency point information, the cell ID information and the system message configuration of the first residential cell, the IMSI (International Mobile Subscriber identity) value of the second SIM card, receive paging, and finally enter IDLE state for standby normally.
And step 104, when the second SIM card exists in the terminal but the network registration of the first SIM card in the first system fails, determining a second system according to the priority sequence of the system types.
And 105, performing network registration of the second SIM card in the second standard.
For example, when the first SIM card fails to register, the second SIM card may also search for a network under guidance of a result of the first SIM card failing to search for a network. For example, when the first SIM card performs network searching operation in the 4G standard and finally fails to enter the offline state, since the second SIM card and the first SIM card are in the same environment and the system type priority order are the same, it can be determined that the failed network searching result is also valid for the second SIM card. At this time, the second SIM card may skip the network searching process in the 4G system, and directly perform the network searching operation in the 3G system.
In summary, the network searching method for the multi-card multi-standby terminal provided by the present disclosure can determine whether a second SIM card consistent with the system type and the system type priority order of the first subscriber identity module SIM card exists in the terminal; when the second SIM card exists in the terminal and the first SIM card completes network registration in a first mode, determining whether first frequency point information of a first resident cell of the first SIM card is matched with the second SIM card, wherein the first SIM card is a main card in the terminal; when the first frequency point information is matched with the second SIM card, network registration of the second SIM card is carried out according to the first frequency point information; when the second SIM card exists in the terminal but the network registration of the first SIM card in the first system fails, determining a second system according to the priority sequence of the system types; and performing network registration of the second SIM card in the second standard. The network searching process of other SIM cards can be simplified through the successful or failed network searching result of one SIM card and the system information of all the SIM cards, so that the terminal startup time increased by multi-card network searching is reduced.
Fig. 2 is a flowchart illustrating another network searching method for a multi-card multi-standby terminal according to the embodiment shown in fig. 1, and as shown in fig. 2, after step 102, the method may further include the following steps.
Step 106, obtaining a first prior information when the first SIM card performs network registration in the first standard.
Wherein the first prior information comprises: and the first SIM card performs network registration in the first mode to traverse cell information of all cells.
For example, in the step 102, when the first frequency point information does not match with the available cell frequency point of the second SIM card, it does not mean that the network searching operation of the first SIM card loses guiding significance for the network searching operation of the second SIM card. During the network searching operation of the second SIM card, some cells that have been fed back by the first SIM card as being unsuitable for camping may be skipped or filtered out according to the cell information of all the cells traversed by the first SIM card during network searching. Wherein the cell information may include at least one of: the signal intensity of the cell, the operator of the cell, whether the cell is forbidden to access, and whether the network location area or roaming area or routing area where the cell is located is forbidden.
Step 107, before the second SIM card performs network registration in the first standard, screening one or more unmatched cells from all cells traversed by the first prior information during network registration in the first standard.
Illustratively, this step 107 may include at least one of: when the signal intensity of a first cell in all the cells is smaller than a preset threshold value, determining the first cell as a unmatched cell, wherein the first cell is any one of all the cells; when the first SIM card and the second SIM card belong to a first operator and the first cell belongs to a second operator different from the first operator, determining the first cell as a non-matching cell; when the first cell is a cell which is forbidden to be accessed, determining the first cell as a non-matching cell; and when the network location area or the roaming area or the routing area where the first cell is located is forbidden, determining the first cell as a non-matching cell. It can be understood that, when the cell traversed by the first SIM card is fed back as a cell with a weaker signal, a cell belonging to a different operator, a cell with forbidden access, or a cell with forbidden network location area or roaming area or routing area, the cell is determined to be the above-mentioned unmatched cell, and the unmatched cell is skipped when the second SIM card performs network searching operation and network registration in the following step 108. It should be noted that the screening of the unmatched cells is established on the premise that the first SIM card and the second SIM card perform network searching operations in the same system.
Step 108, when the second SIM card performs network registration in the first standard, the unmatched cells are filtered.
Fig. 3 is a flowchart illustrating a network searching method for a multi-card multi-standby terminal according to the embodiment shown in fig. 1, and as shown in fig. 3, after the step 105, the method may further include the following steps.
Step 109, determining whether the second frequency point information of the second residential cell of the second SIM card matches with the first SIM card.
Step 1010, performing network registration of the first SIM card according to the second frequency point information.
Step 1011, obtaining a second prior information of the second SIM card when performing network registration in the second standard.
Wherein the second prior information comprises: and the second SIM card performs network registration in the second mode according to the cell information of all the traversed cells.
Step 1012, selecting one or more unmatched cells from all the cells traversed by the second priori information during network registration in the second standard.
Step 1013, the network registration of the first SIM card is performed again in the second standard, and the unmatched cells are filtered out when the network registration is performed.
For example, when the first SIM card fails to search for a network, the second SIM card may skip the network searching process in the first system, and directly perform the network searching operation in the next system (i.e., the second system). When it is confirmed that the second SIM card successfully completes network registration, the cell information collected during its network search may be fed back to the first SIM card in steps 109 to 1013 in the same way as in steps 102 and 103 or steps 106 to 108, and the first SIM card may perform network search again with the cell information as a guide. It should be noted that, here, if the second SIM card still fails to search for the network, the failure result may be fed back to the first SIM card again, and the first SIM card performs the network searching operation again in the next level of the second system. Therefore, the two SIM cards alternately carry out network searching operation under the next-level system until the two SIM cards are successfully registered in the network of a certain system, or the fact that no communication signal exists in the current environment is determined, and the network registration of the terminal completely fails.
Fig. 4 is a flowchart of a method for confirming cell matching according to the embodiment shown in fig. 2, where as shown in fig. 4, the first frequency point information includes a first frequency point of the first camping cell, and the step 102 may include the following steps.
Step 1021, determining whether the frequency point set stored in the second SIM card contains the first frequency point.
For example, first, in step 1021, it is determined whether the first frequency point of the cell where the first SIM card resides exists in the frequency point set stored in the second SIM card, and when it is determined that the first frequency point exists in the frequency point set, it is determined in step 1022 that the first frequency point information matches with the second SIM card, otherwise, step 1023 is continued.
Step 1022, determining that the first frequency point information matches with the second SIM card.
And 1023, determining whether the first frequency point is located in the access frequency range of the second SIM card.
For example, when it is determined that the frequency point set stored in the second SIM card does not include the first frequency point, it may be determined that the first frequency points are all within the access frequency band of the second SIM card. When the first frequency point is determined to be located within the access frequency range of the second SIM card, it is determined in step 1024 that the first frequency point information matches the second SIM card, otherwise, it is determined in step 1023 that the first frequency point information does not match the second SIM card, so as to collect the first prior information of the first SIM card during network registration, and search for relevant information capable of guiding the second SIM card to perform network searching operation by continuing in the first prior information.
Step 1024, determining that the first frequency point information is matched with the second SIM card.
In step 1025, it is determined that the first frequency point information does not match the second SIM card.
Fig. 5 is a flowchart illustrating a network searching method of a multi-card multi-standby terminal according to the embodiment shown in fig. 2, and as shown in fig. 5, after step 106, the method may further include the following steps.
Step 1014, when the first SIM card and the second SIM card belong to different operators, determining whether a strong cell of a registered public land mobile network RPLMN and a home public land mobile network HPLMN to which the second SIM card belongs exists in all cells traversed by the first SIM card during network registration in the first system.
Step 1015, when the strong cell exists, the strong cell is used as a reference cell to guide the second SIM card to perform network registration in the first standard.
For example, after step 106, if it is determined that the first SIM card and the second SIM card belong to different operators, a strong cell capable of supporting RPLMNs and HPLMNs camped by multiple operators (including the operator to which the second SIM card belongs) can be found from all cells traversed by the first SIM card in network registration in the first standard. And if the strong cell exists, directly enabling the second SIM card to reside in the strong cell, and further performing network registration of the second SIM card through the cell information of the strong cell.
In summary, the network searching method for the multi-card multi-standby terminal provided by the present disclosure can determine whether a second SIM card consistent with the system type and the system type priority order of the first subscriber identity module SIM card exists in the terminal; when the second SIM card exists in the terminal and the first SIM card completes network registration in a first mode, determining whether first frequency point information of a first resident cell of the first SIM card is matched with the second SIM card, wherein the first SIM card is a main card in the terminal; when the first frequency point information is matched with the second SIM card, network registration of the second SIM card is carried out according to the first frequency point information; when the second SIM card exists in the terminal but the network registration of the first SIM card in the first system fails, determining a second system according to the priority sequence of the system types; and performing network registration of the second SIM card in the second standard. The network searching process of other SIM cards can be simplified through the successful or failed network searching result of one SIM card and the system information of all the SIM cards. And when the network searching of the main SIM card fails, the network searching process and the result of the auxiliary SIM card are used as the guidance for searching the network again by the main SIM card, so that the terminal startup time increased by multi-card network searching is reduced, and the network searching success rate of the terminal is increased.
Fig. 6 is a block diagram illustrating a network searching apparatus of a multi-card multi-standby terminal according to an exemplary embodiment of the present application, where the network searching apparatus 600 of the multi-card multi-standby terminal may be used to execute the method illustrated in fig. 1. Referring to fig. 6, the apparatus 600 may include:
an SIM card identifying module 6010, configured to determine whether a second SIM card consistent with both the system type and the system type priority order of the first subscriber identity module SIM card exists in the terminal;
a frequency point information matching module 6020, configured to determine whether the first frequency point information of the first residential cell of the first SIM card is matched with the second SIM card when the second SIM card exists in the terminal and the first SIM card completes network registration in the first system, where the first SIM card is a main card in the terminal;
a first network registration module 6030, configured to perform network registration on the second SIM card according to the first frequency point information when it is determined that the first frequency point information matches the second SIM card;
a system determining module 6040, configured to determine, when the second SIM card exists in the terminal but network registration of the first SIM card in the first system fails, a second system according to the priority order of the system types;
a second network registration module 6050, configured to perform network registration on the second SIM card in the second standard.
Fig. 7 is a block diagram of another network searching apparatus of a multi-card multi-standby terminal according to the embodiment shown in fig. 6, and the apparatus fault type analyzing apparatus 600 may be used to execute the method shown in fig. 2 or fig. 3. Referring to fig. 7, the apparatus 600 may further include:
a priori information obtaining module 6060, configured to obtain first priori information when the first frequency point information is determined to be not matched with the second SIM card, where the first priori information includes: cell information of all cells traversed by the first SIM card during network registration in the first standard;
a cell screening module 6070, configured to screen one or more unmatched cells from all cells traversed by the first priori information during network registration in the first standard before network registration is performed in the first standard on the second SIM card;
a cell filtering module 6080, configured to filter the unmatched cell when the second SIM card performs network registration in the first standard.
Optionally, the frequency point information matching module 6020 is further configured to:
determining whether second frequency point information of a second resident cell of the second SIM card is matched with the first SIM card;
the first network registration module 6030 is further configured to perform network registration on the first SIM card according to the second frequency point information when it is determined that the second frequency point information matches the first SIM card;
the prior information obtaining module 6060 is further configured to, when it is determined that the second frequency point information is not matched with the first SIM card, obtain second prior information of the second SIM card during network registration in the second standard, where the second prior information includes: the second SIM card carries out network registration in the second standard and traverses the cell information of all cells;
the cell screening module 6070 is further configured to screen one or more unmatched cells from all cells traversed by the second priori information during network registration in the second standard;
the cell filtering module 6080 is further configured to perform network registration of the first SIM card again in the second standard, and filter the unmatched cell when performing network registration.
Fig. 8 is a block diagram of a frequency point information matching module according to the embodiment shown in fig. 7, where the frequency point information matching module 6020 may be used to execute the method shown in fig. 4. Referring to fig. 8, the first frequency point information includes a first frequency point of the first camping cell, and the frequency point information matching module 6020 may include:
a frequency point determining submodule 6021, configured to determine whether the frequency point set stored in the second SIM card includes the first frequency point;
a first matching determination submodule 6022, configured to determine that the first frequency point information matches with the second SIM card when the frequency point set includes the first frequency point;
a range determining submodule 6023, configured to determine whether the first frequency point is located in the access frequency range of the second SIM card when the frequency point set does not include the first frequency point;
a second matching determination submodule 6024, configured to determine that the first frequency point information is matched with the second SIM card when the first frequency point is located within the access frequency range of the second SIM card; alternatively, the first and second electrodes may be,
and when the first frequency point is not in the range of the access frequency band of the second SIM card, determining that the first frequency point information is not matched with the second SIM card.
Optionally, the cell information includes at least one of the following: a cell signal strength, an operator to which the cell belongs, whether the cell is prohibited from accessing, whether a network location area or a roaming area or a routing area where the cell is located is prohibited, and the cell screening module 6070 is configured to at least one of:
when the signal intensity of a first cell in all the cells is smaller than a preset threshold value, determining the first cell as a unmatched cell, wherein the first cell is any one of all the cells;
when the first SIM card and the second SIM card belong to a first operator and the first cell belongs to a second operator different from the first operator, determining the first cell as a non-matching cell;
when the first cell is a cell which is forbidden to be accessed, determining the first cell as a non-matching cell;
and when the network location area or the roaming area or the routing area where the first cell is located is forbidden, determining the first cell as a non-matching cell.
Fig. 9 is a block diagram of a network searching apparatus for a multi-card multi-standby terminal according to the embodiment shown in fig. 7, where the apparatus 600 may be configured to execute the method shown in fig. 5, and referring to fig. 9, the apparatus 600 may further include:
a strong cell determining module 6090, configured to determine, when the first SIM card and the second SIM card belong to different operators, whether a strong cell of a registered public land mobile network RPLMN and a home public land mobile network HPLMN to which the second SIM card belongs exists in all cells traversed by the first SIM card during network registration in the first standard;
a third network registration module 6100, configured to use the strong cell as a reference cell to guide the second SIM card to perform network registration in the first standard when the strong cell exists.
In summary, the network searching device of the multi-card multi-standby terminal provided by the present disclosure can determine whether a second SIM card consistent with the system type and the system type priority order of the first subscriber identity module SIM card exists in the terminal; when the second SIM card exists in the terminal and the first SIM card completes network registration in a first mode, determining whether first frequency point information of a first resident cell of the first SIM card is matched with the second SIM card, wherein the first SIM card is a main card in the terminal; when the first frequency point information is matched with the second SIM card, network registration of the second SIM card is carried out according to the first frequency point information; when the second SIM card exists in the terminal but the network registration of the first SIM card in the first system fails, determining a second system according to the priority sequence of the system types; and performing network registration of the second SIM card in the second standard. The network searching process of other SIM cards can be simplified through the successful or failed network searching result of one SIM card and the system information of all the SIM cards. And when the network searching of the main SIM card fails, the network searching process and the result of the auxiliary SIM card are used as the guidance for searching the network again by the main SIM card, so that the terminal startup time increased by multi-card network searching is reduced, and the network searching success rate of the terminal is increased.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 10 is a block diagram illustrating an electronic device 1000 according to an exemplary embodiment of the present application. As shown in fig. 10, the electronic device 1000 may include: a processor 1001, a memory 1002, multimedia components 1003, input/output (I/O) interfaces 1004, and communication components 1005.
The processor 1001 is configured to control the overall operation of the electronic device 1000, so as to complete all or part of the steps in the network searching method of the multi-card multi-standby terminal. The memory 1002 is used to store various types of data to support operation of the electronic device 1000, such as instructions for any application or method operating on the electronic device 1000 and application-related data, such as contact data, messaging, pictures, audio, video, and so forth. The Memory 1002 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as a Static Random Access Memory (SRAM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), an Erasable Programmable Read-Only Memory (EPROM), a Programmable Read-Only Memory (PROM), a Read-Only Memory (ROM), a magnetic Memory, a flash Memory, a magnetic disk, or an optical disk. The multimedia components 1003 may include screen and audio components. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may further be stored in memory 1002 or transmitted through communication component 1005. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 1004 provides an interface between the processor 1001 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 1005 is used for wired or wireless communication between the electronic device 1000 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, or 4G, or a combination of one or more of them, so that the corresponding Communication component 1005 may include: Wi-Fi module, bluetooth module, NFC module.
In an exemplary embodiment, the electronic Device 1000 may be implemented 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 Arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components, and is configured to perform the network searching method of the multi-card multi-standby terminal.
In another exemplary embodiment, a computer readable storage medium including program instructions, for example, the memory 1002 including program instructions, which are executable by the processor 1001 of the electronic device 1000 to perform the network searching method of the multi-card multi-standby terminal described above, is also provided.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (14)

1. A network searching method for a multi-card multi-standby terminal is characterized by comprising the following steps:
determining whether a second SIM card which is consistent with the system type and the system type priority order of the first user identity SIM card exists in the terminal;
when the second SIM card exists in the terminal and the first SIM card completes network registration in a first standard, determining whether first frequency point information of a first resident cell of the first SIM card is matched with the second SIM card, wherein the first SIM card is a main card in the terminal;
when the first frequency point information is determined to be matched with the second SIM card, network registration of the second SIM card is carried out according to the first frequency point information;
when the second SIM card exists in the terminal but the network registration of the first SIM card in the first system fails, determining a second system according to the priority sequence of the system types;
and performing network registration of the second SIM card in the second standard.
2. The method of claim 1, further comprising:
when it is determined that the first frequency point information is not matched with the second SIM card, obtaining first prior information of the first SIM card in network registration in the first standard, where the first prior information includes: the first SIM card performs network registration in the first standard and traverses cell information of all cells;
before the second SIM card performs network registration in the first standard, screening one or more unmatched cells from all cells traversed by the first prior information during the network registration in the first standard;
and when the second SIM card carries out network registration in the first standard, filtering the unmatched cells.
3. The method of claim 1, wherein after the network registration of the second SIM card in the second standard, the method further comprises:
determining whether second frequency point information of a second resident cell of the second SIM card is matched with the first SIM card;
when the second frequency point information is determined to be matched with the first SIM card, network registration of the first SIM card is carried out according to the second frequency point information;
when it is determined that the second frequency point information is not matched with the first SIM card, obtaining second prior information of the second SIM card in the second standard during network registration, where the second prior information includes: the second SIM card performs network registration in the second standard according to the cell information of all traversed cells;
screening one or more unmatched cells from all cells traversed by the second priori information during network registration in the second standard;
and performing network registration of the first SIM card again in the second standard, and filtering the unmatched cells when performing network registration.
4. The method according to any one of claims 1 to 3, wherein the first frequency point information includes a first frequency point of the first camped cell, and the determining whether the first frequency point information of the first camped cell of the first SIM card matches with the second SIM card comprises:
determining whether the frequency point set stored in the second SIM card contains the first frequency point;
when the frequency point set comprises the first frequency point, determining that the first frequency point information is matched with the second SIM card;
when the frequency point set does not contain the first frequency point, determining whether the first frequency point is located in the range of the access frequency band of the second SIM card;
when the first frequency point is located in the access frequency range of the second SIM card, determining that the first frequency point information is matched with the second SIM card; alternatively, the first and second electrodes may be,
and when the first frequency point is not in the range of the access frequency band of the second SIM card, determining that the first frequency point information is not matched with the second SIM card.
5. The method of claim 2, wherein the cell information comprises at least one of: the method comprises the following steps of screening one or more unmatched cells from all cells traversed by network registration according to the first prior information, wherein the selected unmatched cells comprise at least one of the following conditions:
when the signal intensity of a first cell in all the cells is smaller than a preset threshold value, determining the first cell as a unmatched cell, wherein the first cell is any one of all the cells;
determining the first cell as a non-matching cell when the first SIM card and the second SIM card belong to a first operator and the first cell belongs to a second operator different from the first operator;
when the first cell is a cell which is forbidden to be accessed, determining the first cell as a non-matching cell;
and when the network location area or the roaming area or the routing area where the first cell is located is forbidden, determining the first cell as a non-matching cell.
6. The method of claim 5, further comprising:
when the first SIM card and the second SIM card belong to different operators, judging whether strong cells of a Registered Public Land Mobile Network (RPLMN) and a Home Public Land Mobile Network (HPLMN) to which the second SIM card belongs exist in all cells traversed by the first SIM card during network registration in the first standard;
and when the strong cell exists, the strong cell is used as a reference cell to guide the second SIM card to perform network registration in the first standard.
7. A network searching device of a multi-card multi-standby terminal is characterized by comprising:
the SIM card identification module is used for determining whether a second SIM card which is consistent with the system type and the system type priority order of the first user identity identification SIM card exists in the terminal;
the frequency point information matching module is used for determining whether first frequency point information of a first resident cell of the first SIM card is matched with the second SIM card when the second SIM card exists in the terminal and the first SIM card completes network registration in a first standard, wherein the first SIM card is a main card in the terminal;
the first network registration module is used for performing network registration on the second SIM card according to the first frequency point information when the first frequency point information is determined to be matched with the second SIM card;
the system determining module is used for determining a second system according to the system type priority order when the second SIM card exists in the terminal but the network registration of the first SIM card in the first system fails;
and the second network registration module is used for performing network registration of the second SIM card in the second standard.
8. The apparatus of claim 7, further comprising:
a priori information obtaining module, configured to obtain first priori information of the first SIM card in network registration in the first standard when it is determined that the first frequency point information is not matched with the second SIM card, where the first priori information includes: the first SIM card performs network registration in the first standard and traverses cell information of all cells;
the cell screening module is used for screening one or more unmatched cells from all cells traversed by the second SIM card during network registration in the first standard according to the first prior information before the second SIM card performs network registration in the first standard;
and the cell filtering module is used for filtering the unmatched cells when the second SIM card carries out network registration in the first standard.
9. The apparatus of claim 7, wherein the frequency point information matching module is further configured to:
determining whether second frequency point information of a second resident cell of the second SIM card is matched with the first SIM card;
the first network registration module is further configured to perform network registration of the first SIM card according to the second frequency point information when it is determined that the second frequency point information matches the first SIM card;
the device further includes a priori information obtaining module, where the priori information obtaining module is further configured to obtain second priori information of the second SIM card in the second standard when it is determined that the second frequency point information is not matched with the first SIM card, where the second priori information includes: the second SIM card performs network registration in the second standard according to the cell information of all traversed cells;
the cell screening module is further configured to screen one or more unmatched cells from all cells traversed by the second priori information during network registration in the second standard;
and the cell filtering module is further configured to perform network registration of the first SIM card again in the second standard, and filter the unmatched cell when performing network registration.
10. The apparatus according to any of claims 7-9, wherein the first frequency point information comprises a first frequency point of the first camping cell, and the frequency point information matching module comprises:
a frequency point determining submodule, configured to determine whether the frequency point set stored in the second SIM card includes the first frequency point;
a first matching determination submodule, configured to determine that the first frequency point information matches the second SIM card when the frequency point set includes the first frequency point;
the range determining submodule is used for determining whether the first frequency point is located in the range of the access frequency band of the second SIM card when the frequency point set does not contain the first frequency point;
the second matching determination submodule is used for determining that the first frequency point information is matched with the second SIM card when the first frequency point is positioned in the range of the access frequency band of the second SIM card; alternatively, the first and second electrodes may be,
and when the first frequency point is not in the range of the access frequency band of the second SIM card, determining that the first frequency point information is not matched with the second SIM card.
11. The apparatus of claim 8, wherein the cell information comprises at least one of: the cell screening module is used for at least one of the following:
when the signal intensity of a first cell in all the cells is smaller than a preset threshold value, determining the first cell as a unmatched cell, wherein the first cell is any one of all the cells;
determining the first cell as a non-matching cell when the first SIM card and the second SIM card belong to a first operator and the first cell belongs to a second operator different from the first operator;
when the first cell is a cell which is forbidden to be accessed, determining the first cell as a non-matching cell;
and when the network location area or the roaming area or the routing area where the first cell is located is forbidden, determining the first cell as a non-matching cell.
12. The apparatus of claim 11, further comprising:
a strong cell determining module, configured to determine, when the first SIM card and the second SIM card belong to different operators, whether a strong cell of a registered public land mobile network RPLMN and a home public land mobile network HPLMN to which the second SIM card belongs exists in all cells traversed by the first SIM card during network registration in the first standard;
and the third network registration module is used for taking the strong cell as a reference cell to guide the second SIM card to perform network registration in the first standard when the strong cell exists.
13. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.
14. An electronic device, comprising:
the computer-readable storage medium recited in claim 13; and
one or more processors to execute the computer program in the computer-readable storage medium.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021237684A1 (en) * 2020-05-29 2021-12-02 Qualcomm Incorporated Resolution of new radio registration failure for dual subscriber identity modules
CN114125991B (en) * 2020-08-26 2023-09-08 华为技术有限公司 Network searching method and device under multi-card mode and terminal equipment
CN113207115B (en) * 2021-05-11 2022-07-22 青岛海信移动通信技术股份有限公司 Mobile terminal and network searching control method
CN113242544B (en) * 2021-06-22 2023-04-07 维沃移动通信有限公司 Paging method, paging device and electronic equipment
CN115052327B (en) * 2022-03-16 2023-10-20 北京小米移动软件有限公司 Network control method, device and storage medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101217739A (en) * 2008-01-11 2008-07-09 展讯通信(上海)有限公司 A single-baseband single radio frequency dual-card dual-standby communication terminal and the corresponding communication method
WO2012041735A1 (en) * 2010-10-01 2012-04-05 Telefonaktiebolaget L M Ericsson (Publ) Technique for managing measurements for multiple subscriptions in a mobile terminal
CN102934513A (en) * 2011-06-08 2013-02-13 展讯通信(上海)有限公司 Multi-card multi-standby terminal, synchronization method and device thereof
CN104796963A (en) * 2014-01-17 2015-07-22 马维尔国际有限公司 Cell residence method for mobile terminal, device and mobile terminal
CN106455010A (en) * 2016-10-27 2017-02-22 努比亚技术有限公司 Quick network search method and apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101217739A (en) * 2008-01-11 2008-07-09 展讯通信(上海)有限公司 A single-baseband single radio frequency dual-card dual-standby communication terminal and the corresponding communication method
WO2012041735A1 (en) * 2010-10-01 2012-04-05 Telefonaktiebolaget L M Ericsson (Publ) Technique for managing measurements for multiple subscriptions in a mobile terminal
CN102934513A (en) * 2011-06-08 2013-02-13 展讯通信(上海)有限公司 Multi-card multi-standby terminal, synchronization method and device thereof
CN104796963A (en) * 2014-01-17 2015-07-22 马维尔国际有限公司 Cell residence method for mobile terminal, device and mobile terminal
CN106455010A (en) * 2016-10-27 2017-02-22 努比亚技术有限公司 Quick network search method and apparatus

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