CN104902528A - Dual-card terminal, method and device for automatically switching data services of dual-card terminal - Google Patents
Dual-card terminal, method and device for automatically switching data services of dual-card terminal Download PDFInfo
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- CN104902528A CN104902528A CN201510208278.2A CN201510208278A CN104902528A CN 104902528 A CN104902528 A CN 104902528A CN 201510208278 A CN201510208278 A CN 201510208278A CN 104902528 A CN104902528 A CN 104902528A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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Abstract
The invention discloses a dual-card terminal, a method and device for automatically switching data services of the dual-card terminal. The method includes the following steps that: the transmission state of data passing through a first network into which a main client identification module SIM card is monitored; whether the replacement of the first network is required is judged according to monitoring results; when it is judged that the first network is required to be replaced, the other SIM card, adopted as a main SIM card, is connected into a corresponding second network, so that data services can be provided for a user, wherein the first network and the second network both accord with mobile communication standards higher than the fourth generation mobile communication standards 4G. Taking switching between different 4G networks as an example, with the method and device of the invention adopted, the terminal can automatically and quickly switch 4G data services to the other SIM card when a 4G network to which a main SIM card belongs is incapable of providing excellent data transmission, wherein the main SIM card provides 4G data services currently, and therefore, a 4G network of the other SIM card can be utilized to perform data services.
Description
Technical field
The present invention relates to the data service technical field in mobile communication, particularly relate to the method and apparatus of a kind of double-terminal and data service automatic switchover thereof.
Background technology
Existing double-card dual-standby 4G (forth generation mobile communication standard, at present alleged 4G network refers to LTE network) terminal is owing to supporting two 4G standby, even if that it adopts is two SIM (the Subscriber Identity Module all supporting 4G data service, client identification module) card, below by SIM card referred to as card, synchronization also only have one block as main card to run 4G data service.Such as: card 1 is as main card, standby at 4G network, and block 2 2G or 3G network standby, if use the 4G data service of card 2, will manually switch card data service, make card 2 become main card, and start LTE (Long Term Evolution, Long Term Evolution) community searches net, and 1, the card of original service data business in 4G network becomes and operates in 2G or 3G network simultaneously.
The two 4G terminal use of existing double card is when usage data business, especially when user is in moving process, when the heavier region in the LTE network weak signal overlay area or network load of carrying out card 1, terminal carries out the ability of data traffic transmission by degradation, usually there will be video card to pause, the poor Consumer's Experience such as software download is slow, if user wishes to carry out data service with the 4G network of card 2, so user just must manual switchover data service to card 2, but owing to switching front user and not knowing whether the network coverage condition belonging to card 2 meets the resident condition of terminal 4G, after user's manual switchover data service to card 2, user equipment (UE) likely residently also likely can cannot reside in 4G to 4G, and carry out LTE at card 2 and search net and also need the time, data service is caused to switch and during searching net, user cannot normal usage data business, these 4G data services that all can affect user are experienced.
Summary of the invention
The technical problem to be solved in the present invention is, the method and apparatus that a kind of double-terminal and data service thereof are automatically switched is provided, ensures that the good data service of user is experienced at the forth generation corresponding to two SIM card and automatically switching between above mobile communication standard network.
The technical solution used in the present invention is, the method that described double-terminal data service is automatically switched, and comprising:
The data transmission scenarios of the first network by main client identification module SIM card access is monitored;
Judge whether to need to change first network according to monitoring result;
When judging to need to change first network, using the second network of another SIM card as main SIM card access correspondence, to provide data service to user; Described first network and described second network all meet the mobile communication standard of forth generation more than mobile communication standard 4G.
Further, the data transmission scenarios of the first network accessed by main SIM card is monitored, comprising:
In the first network accessed by main SIM card, when the cycle set arrives, distribute to the Resource Block sum of subscriber equipment divided by the number of times receiving described Resource Block in described setting-up time section with the Physical Downlink Control Channel received in setting duration, obtain Resource Block par.
Further, in the cycle of described setting, comprising: switching cycle between the card under subscriber equipment connected state.
Further, judge whether to need to change first network according to monitoring result, comprising:
Judge whether described Resource Block par is less than the numerical value of setting, if so, then judge to need to change first network, otherwise judge not need to change first network.
Further, the data transmission scenarios of the first network accessed by main SIM card is monitored, also comprises:
In the first network accessed by main SIM card, while the described Resource Block par of monitoring, to CQI (the channel quality indication that subscriber equipment reports to network side, channel quality indicates) and the MCS (Modulation and Coding Scheme, modulation and coding strategy) that sends of the network side that receives of subscriber equipment monitor.
Further, judge whether to need to change first network according to monitoring result, comprising:
A1: judge whether described Resource Block par is less than the numerical value of setting, if so, then performs steps A 2, otherwise, judge not need to change first network;
A2: judge whether described CQI and/or described MCS meets the condition of setting, if so, then judges to need to change first network, otherwise judges not need to change first network.
Further, when judging to need to change first network, using another SIM card as before the second network that the access of main SIM card is corresponding, described method, also comprises:
Whether the second network that described in judging, another SIM card is corresponding meets the resident condition of access, if then using the second network of another SIM card as main SIM card access correspondence, otherwise still provides data service by first network to user.
Further, whether the second network that described in judging, another SIM card is corresponding meets the resident condition of access, comprising:
B1: judge whether the Serving cell of described 2G corresponding to another SIM card or 3G network is configured with the adjacent area meeting mobile communication standard corresponding to second network, if so, then performs step B2, otherwise performs step B3;
B2: the measurement described adjacent area of configuration being carried out to reference signal strength, if reach the strength values of setting, the second network that described in then judging, another SIM card is corresponding meets the resident condition of access, otherwise the second network that described in judging, another SIM card is corresponding does not meet the resident condition of access; Flow process terminates;
B3: start the community background public land mobile network PLMN meeting mobile communication standard corresponding to second network and search for, meet the community of mobile communication standard corresponding to second network if search, then perform step B4; If do not search LTE community, then the second network that described in judging, another SIM card is corresponding does not meet the resident condition of access;
B4: the measurement community meeting mobile communication standard corresponding to second network searched being carried out to reference signal strength, if reach the strength values of setting, the second network that described in then judging, another SIM card is corresponding meets the resident condition of access, otherwise the second network that described in judging, another SIM card is corresponding does not meet the resident condition of access.
The device that the present invention also provides a kind of double-terminal data service to automatically switch, comprising:
Monitoring modular, for monitoring the data transmission scenarios of the first network accessed by main SIM card;
Judge module, needs to change first network for judging whether according to monitoring result;
Processing module, during for needing when judgement to change first network, using the second network of another SIM card as main SIM card access correspondence, to provide data service to user.
The present invention also provides a kind of double-terminal, comprises the device that above-mentioned double-terminal data service is automatically switched.
Adopt technique scheme, the present invention at least has following advantages:
The method and apparatus that double-terminal of the present invention and data service thereof are automatically switched, for the mobile communication standard of more than 4G, switches between different networks.To carry out switching to example between different 4G networks, solve user in moving process, because of the current 4G of providing data service main SIM card belonging to 4G network cannot provide good transfer of data for user, when causing data transmission performance to decline, terminal automatically and fast can switch 4G data service and also use the 4G network of another SIM card described to carry out data service to another SIM card, and the data service promoting user is experienced.
Accompanying drawing explanation
Fig. 1 is the method flow diagram that the double card 4G terminal data business of third embodiment of the invention automatically switches;
Fig. 2 is the device composition structural representation that the double card 4G terminal data business of seventh embodiment of the invention automatically switches;
Fig. 3 is the 4G data service switching flow schematic diagram of the double card 4G cell phone of ninth embodiment of the invention.
Embodiment
For further setting forth the present invention for the technological means reaching predetermined object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, the present invention is described in detail as after.
First embodiment of the invention, a kind of method that double-terminal data service is automatically switched, comprises following concrete steps:
Step 1, monitors the data transmission scenarios of the first network by main client identification module SIM card access;
Concrete, step 1 comprises:
In the first network accessed by main SIM card, when the cycle set arrives, distribute to the Resource Block sum of subscriber equipment divided by the number of times receiving described Resource Block in described setting-up time section with the Physical Downlink Control Channel received in setting duration, obtain Resource Block par.
In the cycle of this setting, comprising: switching cycle between the card under subscriber equipment connected state.
Step 2, judges whether to need to change first network according to monitoring result;
Concrete, step 2 comprises:
Judge whether described Resource Block par is less than the numerical value of setting, if so, then judge to need to change first network, otherwise judge not need to change first network.
Step 3, when judging to need to change first network, using the second network of another SIM card as main SIM card access correspondence, to provide data service to user; Described first network and described second network all meet the mobile communication standard of forth generation more than mobile communication standard 4G.
Be described above the embodiment that in the embodiment of the present invention one is basic.
As the preferred embodiment of in the present embodiment, further, in step 1, the data transmission scenarios of the first network accessed by main SIM card is monitored, also comprises:
In the first network accessed by main SIM card, while the described Resource Block par of monitoring, the MCS that the network side that the CQI reported to network side subscriber equipment and subscriber equipment receive is sent monitors.
So, now in step 2, judge whether that needing to change first network then adopts another kind to judge flow process, specifically comprises according to monitoring result:
A1: judge whether described Resource Block par is less than the numerical value of setting, if so, then performs steps A 2, otherwise, judge not need to change first network;
A2: judge whether described CQI and/or described MCS meets the condition of setting, if so, then judges to need to change first network, otherwise judges not need to change first network.
As the preferred embodiment of another in the present embodiment, further, in the process, when judging to need to change first network, using another SIM card as before the second network that the access of main SIM card is corresponding, described method, also comprises:
Whether the second network that described in judging, another SIM card is corresponding meets the resident condition of access, if then using the second network of another SIM card as main SIM card access correspondence, otherwise still provides data service by first network to user.
Concrete, whether the second network that described in judging, another SIM card is corresponding meets the resident condition of access, comprising:
B1: judge whether the Serving cell of described 2G corresponding to another SIM card or 3G network is configured with the adjacent area meeting mobile communication standard corresponding to second network, if so, then performs step B2, otherwise performs step B3;
B2: the measurement described adjacent area of configuration being carried out to reference signal strength, if reach the strength values of setting, the second network that described in then judging, another SIM card is corresponding meets the resident condition of access, otherwise the second network that described in judging, another SIM card is corresponding does not meet the resident condition of access; Flow process terminates;
B3: start the community background public land mobile network PLMN meeting mobile communication standard corresponding to second network and search for, meet the community of mobile communication standard corresponding to second network if search, then perform step B4; If do not search LTE community, then the second network that described in judging, another SIM card is corresponding does not meet the resident condition of access;
B4: the measurement community meeting mobile communication standard corresponding to second network searched being carried out to reference signal strength, if reach the strength values of setting, the second network that described in then judging, another SIM card is corresponding meets the resident condition of access, otherwise the second network that described in judging, another SIM card is corresponding does not meet the resident condition of access.
Second embodiment of the invention, corresponding with the basic embodiment in the first embodiment, first preferred embodiment or another preferred embodiment, introduce the device of a kind of double-terminal data service automatic switchover and a kind of double-terminal.
The device of the double-terminal data service automatic switchover of the present embodiment, comprises following part:
Monitoring modular, for monitoring the data transmission scenarios of the first network accessed by main SIM card;
Judge module, needs to change first network for judging whether according to monitoring result;
Processing module, during for needing when judgement to change first network, using the second network of another SIM card as main SIM card access correspondence, to provide data service to user.
The double-terminal of the embodiment of the present invention, comprises the device that above-mentioned double-terminal data service is automatically switched.
Three ~ nine embodiment all switches to example so that the different 4G meeting 4G mobile communication standard are internetwork below, introduce technical scheme of the present invention in detail, technical scheme of the present invention also may be used for the switching in 5G and above mobile communication standard between heterogeneous networks in the future.
Third embodiment of the invention, a kind of method that double card 4G terminal data business automatically switches, as shown in Figure 1, comprises following concrete steps:
Step S101, is monitored the data transmission scenarios of the 4G network accessed by main SIM card.
Concrete, the embodiment of the present invention provides the SIM card of 4G data service to be called main SIM card to user by subscriber equipment, also a SIM card is only had as main SIM card to run 4G data service at synchronization, follow-up through switching, another SIM card just continues as user as main SIM card and provides 4G data service.This step S101 specifically comprises:
In the 4G network accessed by main SIM card, the Resource Block sum of subscriber equipment is distributed to divided by the number of times receiving described Resource Block in described setting-up time section with the Physical Downlink Control Channel received in setting duration when the cycle set arrives, obtain Resource Block par, using described Resource Block par as monitoring result.The cycle of described setting can be the time cycle that user sets as required, such as: every 1 second.
Step S102, judges whether to need to change 4G network according to monitoring result;
Concrete, step S102 comprises: judge whether described Resource Block par is less than the numerical value of setting, if so, then judges to need to change 4G network, otherwise judges not need to change 4G network.
Step S103, when judging to need to change 4G network, using the 4G network of another SIM card as main SIM card access correspondence, to provide data service to user.
Fourth embodiment of the invention, a kind of method that double card 4G terminal data business automatically switches, method described in the present embodiment is roughly the same with the 3rd embodiment, difference is, in the step S101 of the present embodiment, the data transmission scenarios of the 4G network accessed by main SIM card is monitored, specifically comprises:
In the 4G network accessed by main SIM card, when when between the card under subscriber equipment connected state, switching cycle GAP arrives, the Resource Block sum of subscriber equipment is distributed to divided by the number of times receiving described Resource Block in described setting-up time section with the Physical Downlink Control Channel received in setting duration, obtain Resource Block par, using described Resource Block par as monitoring result.
In the present embodiment, when being further defined as switching cycle GAP arrival between the card under subscriber equipment connected state the opportunity calculating described Resource Block par, its objective is and utilize handover mechanism between double card 4G terminal existing card, when being switched to another SIM card by main SIM card, judge whether current 4G network can also provide good transfer of data for user by Monitoring Data transmission situation, if can not, then just in time at this another SIM card duration of work, transfer by the 4G network of this two 1 SIM card access correspondence as user provides 4G data service.Between double card 4G terminal existing card, handover mechanism refers to: when the GAP cycle (being generally 256 milliseconds) arrives, capital is switched to another SIM card work by main SIM card work, after the several millisecond of another SIM card work, switch back main SIM card work again, between such card, handover mechanism can ensure that another SIM card and network side carry out exchanges data timely.
Fifth embodiment of the invention, a kind of method that double card 4G terminal data business automatically switches, method described in the present embodiment is roughly the same with the 3rd embodiment or the 4th embodiment, and difference is:
In the step S101 of the present embodiment, the data transmission scenarios of the 4G network accessed by main SIM card is monitored, also specifically comprises:
In the 4G network accessed by main SIM card, while the described Resource Block par of monitoring, the MCS that the network side that the CQI reported to network side subscriber equipment and subscriber equipment receive is sent monitors.
In the step S102 of the present embodiment, judge whether to need to change 4G network according to monitoring result, specifically comprise:
A1: judge whether described Resource Block par is less than the numerical value of setting, if so, then performs steps A 2, otherwise, judge not need to change 4G network;
A2: judge whether described CQI and/or described MCS meets the condition of setting, if so, then judges to need to change 4G network, otherwise judges not need to change 4G network.
Sixth embodiment of the invention, a kind of method that double card 4G terminal data business automatically switches, method described in the present embodiment and the 3rd, the 4th or the 5th embodiment are roughly the same, and difference is:
In the step S103 of the present embodiment, when judging to need to change 4G network, using another SIM card as before the 4G network that the access of main SIM card is corresponding, described method, also comprises:
Whether the 4G network that described in judging, another SIM card is corresponding meets the resident condition of access, if then using the 4G network of another SIM card as main SIM card access correspondence, otherwise the 4G network still accessed by main SIM card provides data service to user.
Concrete, whether the 4G network that described in judging, another SIM card is corresponding meets the resident condition of access, comprising:
B1: judge whether the Serving cell of described 2G corresponding to another SIM card or 3G network is configured with LTE adjacent area, if so, then performs step B2, otherwise performs step B3;
B2: the measurement LTE adjacent area of configuration being carried out to reference signal strength, if reach the strength values of setting, the 4G network conforms that described in then judging, another SIM card is corresponding accesses resident condition, otherwise the 4G network that described in judging, another SIM card is corresponding does not meet the resident condition of access; Flow process terminates;
B3: start LTE community background PLMN and search for, if search LTE community, then performs step B4; If do not search LTE community, then the 4G network that described in judging, another SIM card is corresponding does not meet the resident condition of access;
B4: the measurement LTE community searched being carried out to reference signal strength, if reach the strength values of setting, the 4G network conforms that described in then judging, another SIM card is corresponding accesses resident condition, otherwise the 4G network that described in judging, another SIM card is corresponding does not meet the resident condition of access.
The embodiment of the present invention, after judging to need to change 4G network, the situation accessing resident condition whether is met in conjunction with the 4G network that another SIM card is corresponding, whether the most at last another SIM card of comprehensive descision switches to main SIM card to provide 4G data service to user, if 4G network corresponding to another SIM card does not meet the resident condition of access and switches, cause most probably frequently switching between follow-up card, be unfavorable for for user provides good 4G data service experience.
Seventh embodiment of the invention, corresponding with the 3rd, the 4th, the 5th or the 6th embodiment, the present embodiment introduces the device that a kind of double card 4G terminal data business automatically switches, and as shown in Figure 2, comprises following part:
Monitoring modular 100, for monitoring the data transmission scenarios of the 4G network accessed by main SIM card;
Judge module 200, needs to change 4G network for judging whether according to monitoring result;
Processing module 300, during for needing when judgement to change 4G network, using the 4G network of another SIM card as main SIM card access correspondence, to provide data service to user.
Eighth embodiment of the invention, the present embodiment is on the basis of the 7th embodiment, introduces a kind of double card 4G terminal, comprises the device that the double card 4G terminal data business in the 7th embodiment automatically switches.The terminal of the present embodiment can be used as entity apparatus to understand.
Ninth embodiment of the invention, the present embodiment is on the basis of above-described embodiment, for a concrete double card 4G cell phone, 3 introduces an application example of the present invention by reference to the accompanying drawings.
In the present embodiment, the SIM card in double card 4G cell phone comprises card 1 and card 2.
As shown in Figure 3, the 4G data service switching flow of double card 4G cell phone, as follows:
Step 1, the SIM card of mobile 4G inserted by card 1, and the SIM card of UNICOM 4G inserted by card 2.Card 1 provides 4G data service as main card access 4G network, the GSM network of card 2 access.
Step 2,4G data service selection card 1 time initial and carry out video playback, software download or web page browsing by card 1.
Step 3, the 4G network allocation of mobile phone backstage statistics card 1 correspondence is to RB (Resource Block, Resource Block) the number also timing in the descending DCI of mobile phone (Downlink Control Information, Downlink Control Information).
Step 4, the connected state GAP cycle is in then at mobile phone, whether the par that the 4G network that before judgement, 2 seconds add up distributes to the descending RB of mobile phone is at every turn less than 10, if, then perform step 5, otherwise the GAP cycle conventionally is then switched to card 2 to realize the data interaction of card 2 and network side, then jump procedure.
Step 5, judges whether the GSM Serving cell of card 2 configures UNICOM LTE adjacent area, if so, then performs step 6, otherwise performs step 7.
Step 6, starts LTE nearby region measurement for card 2, then performs step 8.
Step 7, starts LTE community background PLMN for card 2 and searches for, and then performs step 8.
Step 8, if measure LTE adjacent area or meet the resident condition of access by the LTE community that BUCKET-BASED SEARCHING BACKGROUNDSearch obtains through measurement, then block 2 access 4G networks and the switching of log-on data business, data service switch is switched to card 2 by card 1, otherwise continue to use the 4G network of card 1 to carry out data service.
Step 9, judges whether data service terminates, and if so, then flow process terminates, otherwise jump procedure 3.
Pass through the embodiment of the present invention, the region that subscriber equipment can not provide good data business to transmit at current operator 4G network can be solved, automatically fast data service can be switched to the 4G network belonging to another card, thus provide good 4G data service to experience to user.
The method and apparatus that double-terminal of the present invention and data service thereof are automatically switched, for the mobile communication standard of more than 4G, switches between different networks.To carry out switching to example between different 4G networks, solve user in moving process, because of the current 4G of providing data service main SIM card belonging to 4G network cannot provide good transfer of data for user, when causing data transmission performance to decline, terminal automatically and fast can switch 4G data service and also use the 4G network of another SIM card described to carry out data service to another SIM card, and the data service promoting user is experienced.
By the explanation of embodiment, should to the present invention for the technological means reaching predetermined object and take and effect be able to more deeply and concrete understanding, but appended diagram be only to provide with reference to and the use of explanation, be not used for being limited the present invention.
Claims (10)
1. a method for double-terminal data service automatic switchover, is characterized in that, comprising:
The data transmission scenarios of the first network by main client identification module SIM card access is monitored;
Judge whether to need to change first network according to monitoring result;
When judging to need to change first network, using the second network of another SIM card as main SIM card access correspondence, to provide data service to user; Described first network and described second network all meet the mobile communication standard of forth generation more than mobile communication standard 4G.
2. the method for double-terminal data service automatic switchover according to claim 1, be is characterized in that, monitor, comprising the data transmission scenarios of the first network accessed by main SIM card:
In the first network accessed by main SIM card, when the cycle set arrives, distribute to the Resource Block sum of subscriber equipment divided by the number of times receiving described Resource Block in described setting-up time section with the Physical Downlink Control Channel received in setting duration, obtain Resource Block par.
3. the method for double-terminal data service automatic switchover according to claim 2, is characterized in that, in the cycle of described setting, comprising: switching cycle between the card under subscriber equipment connected state.
4. the method that the double-terminal data service according to Claims 2 or 3 is automatically switched, is characterized in that, judges whether to need to change first network, comprising according to monitoring result:
Judge whether described Resource Block par is less than the numerical value of setting, if so, then judge to need to change first network, otherwise judge not need to change first network.
5. the method that the double-terminal data service according to Claims 2 or 3 is automatically switched, be is characterized in that, monitor, also comprise the data transmission scenarios of the first network accessed by main SIM card:
In the first network accessed by main SIM card, while the described Resource Block par of monitoring, the modulation that the network side that the channel quality indicator (CQI) reported to network side subscriber equipment and subscriber equipment receive is sent and coding strategy MCS monitor.
6. the method for double-terminal data service automatic switchover according to claim 5, is characterized in that, judges whether to need to change first network, comprising according to monitoring result:
A1: judge whether described Resource Block par is less than the numerical value of setting, if so, then performs steps A 2, otherwise, judge not need to change first network;
A2: judge whether described CQI and/or described MCS meets the condition of setting, if so, then judges to need to change first network, otherwise judges not need to change first network.
7. the method that automatically switches of double-terminal data service according to claim 1, is characterized in that, when judging to need to change first network, using another SIM card as before the second network that main SIM card access is corresponding, described method, also comprises:
Whether the second network that described in judging, another SIM card is corresponding meets the resident condition of access, if then using the second network of another SIM card as main SIM card access correspondence, otherwise still provides data service by first network to user.
8. the method for double-terminal data service automatic switchover according to claim 7, is characterized in that, whether the second network that described in judging, another SIM card is corresponding meets the resident condition of access, comprising:
B1: judge whether the Serving cell of described 2G corresponding to another SIM card or 3G network is configured with the adjacent area meeting mobile communication standard corresponding to second network, if so, then performs step B2, otherwise performs step B3;
B2: the measurement described adjacent area of configuration being carried out to reference signal strength, if reach the strength values of setting, the second network that described in then judging, another SIM card is corresponding meets the resident condition of access, otherwise the second network that described in judging, another SIM card is corresponding does not meet the resident condition of access; Flow process terminates;
B3: start the community background public land mobile network PLMN meeting mobile communication standard corresponding to second network and search for, meet the community of mobile communication standard corresponding to second network if search, then perform step B4; If do not search LTE community, then the second network that described in judging, another SIM card is corresponding does not meet the resident condition of access;
B4: the measurement community meeting mobile communication standard corresponding to second network searched being carried out to reference signal strength, if reach the strength values of setting, the second network that described in then judging, another SIM card is corresponding meets the resident condition of access, otherwise the second network that described in judging, another SIM card is corresponding does not meet the resident condition of access.
9. a device for double-terminal data service automatic switchover, is characterized in that, comprising:
Monitoring modular, for monitoring the data transmission scenarios of the first network accessed by main SIM card;
Judge module, needs to change first network for judging whether according to monitoring result;
Processing module, during for needing when judgement to change first network, using the second network of another SIM card as main SIM card access correspondence, to provide data service to user.
10. a double-terminal, is characterized in that, comprises the device that double-terminal data service as claimed in claim 9 is automatically switched.
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