CN110708730A - Multi-mode multi-card mobile terminal and mobility management method thereof - Google Patents
Multi-mode multi-card mobile terminal and mobility management method thereof Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
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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
- H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
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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 application discloses a mobility management method of a multi-mode multi-card mobile terminal. And the SIM card is switched from the current cell A to the cell B when the intra-system switching, or the inter-system switching, or the CCO occurs during the service in the connected state. And the SIM card is resident and registered in the current cell B. Whether the other SIM cards have the same PLMN information with the SIM card I or not; if so, whether the SIM card II and the SIM card I are in the same mobile communication network mode or not; if so, the second SIM card directly resides in and registers in the registered cell B of the first SIM card. If not, the second SIM card changes the mobile communication network mode to be the same as the first SIM card, and then directly resides in and registers in the registered cell B of the first SIM card. And the rest SIM cards try to search the cells which are resided or stored before first, and if the cells can not be found, the network is searched according to the full frequency band until a proper cell is found to reside, or the SIM cards enter an emergency residence state or an OOS state. The method and the device enable the SIM card II to rapidly reside in the registered cell without searching the network.
Description
Technical Field
The present application relates to a mobile communication technology, and in particular, to a mobility management method for a multi-mode multi-card mobile terminal.
Background
The development of Mobile communication technology starts from the first generation of analog cellular Mobile communication systems, to the second generation of Global System for Mobile communication (GSM) which provides voice service and low-rate data service under good network coverage conditions, to the third generation of Universal Mobile Telecommunications System (UMTS) which further provides more types of broadband multimedia services, and the introduction of LTE (Long Term Evolution) brings the Mobile communication technology into the 4G era.
A 4G multimode (multi mode) mobile terminal (UE) supporting GSM, UMTS, and LTE has been widely used. However, the 4G multi-mode mobile terminal still cannot meet the requirements of some specific users, for example, the user wants to have two different phone numbers, or the user wants to use different services (voice, short message, internet service, etc.) of different mobile communication operators at the same time, so the 4G multi-mode mobile terminal with Dual SIM Dual Standby (DSDS) function also has a wide demand.
For convenience of description, in this document, a Subscriber Identity Module (SIM) card is used to denote a smart card used by a mobile terminal, in which subscriber identity data, an authentication algorithm, a corresponding key, and the like are stored for identifying and authenticating the mobile terminal accessing a mobile communication network. The SIM Card is to be understood in a broad sense, and includes R-uim (removable User Identity module) Card, uim (User Identity module) Card, UICC (Universal Integrated Circuit Card) built-in SIM application, usim (Universal electronic subscriber Identity module) application, csim (cdma Identity module) and the like having the same function in different mobile communication networks.
The existing dual-card dual-standby mobile terminal adopts two sets of independent mobile communication modules, shares one baseband chip and one radio frequency chip. However, the necessary information sharing and interaction between two independent mobile communication modules are lacking, which brings the following problems. Along with the position movement of the mobile terminal, the problems of network drop, network search ceaselessly, low cell residence speed after position change, low call completing rate and the like of one SIM card often occur. This is because after one of the SIM cards (referred to as SIM card one) performs voice or data internet access service, as the mobile terminal moves among a plurality of serving cells, the standby recovery of the second SIM card (referred to as SIM card two) is often slow, and the success rate of initiating other services on the SIM card two immediately is sometimes low. Even if the two SIM cards belong to the same mobile communication operator, the Change of the service Cell of the SIM card II does not effectively utilize the mobility management information of the SIM card I, and the mobility management information comprises information such as Intra-system handover (Intra-RAT HO), Inter-system handover (Inter-RAT HO), CCO (Cell Change Order), Cell reselection and the like; therefore, the network search time of the SIM card II is too long, the call-through rate is low, the network is suddenly disconnected, and the user experience is poor.
Disclosure of Invention
The technical problem to be solved by the present application is to provide a mobility management method for a multi-mode multi-card mobile terminal, wherein some SIM cards can utilize mobility management information of other SIM cards to quickly register in a serving cell of a mobile communication network. Therefore, the application also provides a corresponding multimode multi-card mobile terminal.
In order to solve the technical problem, the application discloses a mobility management method of a multimode multi-card mobile terminal, which comprises the following steps. Step S110: an SIM card is switched from a current cell A to a cell B when the SIM card is switched in a system, or switched between systems, or CCO occurs during the service in a connection state; the SIM card is called a SIM card I. Step S120: when the service of the first SIM card is finished, the first SIM card resides in the current cell B again; after the residence is successful, the SIM card tries to register to the cell B; and then the SIM card enters an idle state, an emergency stay state or an OOS state. Step S130: whether the other SIM cards have the same PLMN information with the SIM card I or not; if yes, go to step S140; otherwise, the process proceeds to step S170. Step S140: the SIM card with the same PLMN information as the SIM card I is called as a SIM card II; whether the SIM card II and the SIM card I are in the same mobile communication network mode or not; if yes, go to step S150; otherwise, the process proceeds to step S160. Step S150: the SIM card II directly resides in the cell B registered by the SIM card I; after successful camping, the second SIM card attempts to register to the cell B. Step S160: the SIM card II changes the mobile communication network mode into the same mode as the SIM card I, and then directly resides in a registered cell B of the SIM card I; after successful camping, the second SIM card attempts to register to the cell B. Step S170: and the rest SIM cards try to search the cells which are resided or stored before first, and if the cells can not be found, the network is searched according to the full frequency band until a proper cell is found to reside, or the SIM cards enter an emergency residence state or an OOS state.
The mobility management method of the multi-mode multi-card mobile terminal is a first embodiment of the application and is used for enabling a second SIM card belonging to the same mobile communication operator to rapidly reside and register in a new cell of the first SIM card without searching a network after the SIM card is switched into the cell.
Further, in step S120, after the SIM card is camped in the cell B, if the location area changes, the SIM card starts updating the location area and informs the mobile communication network. In step S150 and step S160, after the SIM card two resides in the target cell, if the location area changes, the SIM card two starts updating the location area and informs the mobile communication network. This is a preferred implementation.
Further, the steps S110 and S120 are jointly performed by the access stratum and the non-access stratum of the SIM card one. In step S130, the non-access stratum of the remaining SIM cards determines. In step S140, the non-access stratum of the second SIM card is used for judgment. The steps S150 and S160 are executed by the access layer of the SIM card two. The step S170 is performed by the access stratum and the non-access stratum of the remaining SIM cards together. This is a preferred implementation.
The application also discloses a multimode multi-card mobile terminal, which comprises a first switching unit, a first registration unit, a PLMN judgment unit, a mode judgment unit, a quick registration unit and a second registration unit. The first switching unit is used for switching from the current cell A to the cell B when the SIM card is switched from the intra-system switching, or the inter-system switching, or the CCO, during the service in the connected state. The first registration unit is used for the SIM card I to reside in the current cell B again after the service of the SIM card I is finished; after the residence is successful, the first SIM card is registered to the cell B; and then the SIM card enters an idle state, an emergency stay state or an OOS state. The PLMN judging unit is used for judging whether the other SIM cards of the mobile terminal have the same PLMN information with the SIM card I. The mode judging unit is used for calling the SIM card with the same PLMN information as the SIM card I as the SIM card II when the PLMN information of any SIM card is the same as that of the SIM card I; and judging whether the SIM card II and the SIM card I are in the same mobile communication network mode. The quick registration unit is used for directly residing the second SIM card in a registered cell B of the first SIM card when the PLMN information and the mobile communication network mode of the second SIM card and the first SIM card are the same; the quick registration unit is also used for changing the mobile communication network mode of the second SIM card into the same mobile communication network mode as the first SIM card when the PLMN information of the second SIM card is the same as that of the first SIM card but the mobile communication network mode of the second SIM card is different from that of the first SIM card, and then directly residing the second SIM card in the registered cell B of the first SIM card. And the second registration unit is used for trying to search the resident or stored cell before the rest of the SIM cards are searched when the PLMN information of the rest of the SIM cards is different from that of the SIM card I, and searching the network according to the full frequency band if the resident or stored cell is not found, until a proper cell is found to reside or the OOS state is entered.
The multi-mode multi-card mobile terminal is a first embodiment of the present application, and is configured to enable a second SIM card belonging to the same mobile communication operator to quickly camp on and register in a new cell of the first SIM card without searching a network after the SIM card switches the cell.
Further, the first switching unit is jointly executed by an access layer and a non-access layer of the first SIM card. The first registration unit is jointly executed by an access layer and a non-access layer of the first SIM card. The PLMN judging unit is realized by respective non-access layers of other SIM cards. And the mode judging unit is realized by a non-access layer of the SIM card II. And the quick registration unit is realized by an access layer of the SIM card II. The second registration unit is jointly realized by an access layer and a non-access layer of each SIM card. This is a preferred implementation.
The application also discloses a mobility management method, which comprises the following steps. Step S310: when one SIM card meets the evaluation condition of the intra-system reselection cell or the inter-system reselection cell, the SIM card is called as a first SIM card, and the intra-system reselection or the inter-system reselection process of the first SIM card is correspondingly started; and simultaneously informing the rest SIM cards, wherein the rest SIM cards temporarily cache other service and/or event requests of the upper layer. Step S320: searching a target cell, reading system information after finding the target cell, and if the residence condition is met, selecting the target cell to reside by the SIM card; after the successful residence, the SIM card tries to register to the target cell; and then the SIM card enters an idle state, an emergency stay state or an OOS state. Step S330: and informing the rest SIM cards, and finishing the intra-system cell reselection process or the inter-system cell reselection process of the SIM card I. Step S340: whether the other SIM cards have the same PLMN information and the same mobile communication network mode as the SIM card I or not; if yes, go to step S350; otherwise, the process proceeds to step S360. Step S350: the SIM card which has the same PLMN information and the same mobile communication network mode as the SIM card I is called as an SIM card II; directly residing the SIM card II in a registered cell of the SIM card I; after successful camping, the second SIM card tries to register to the cell. Step S360: and the rest SIM cards still reside in the original cell.
The second SIM card belonging to the same mobile communication operator can rapidly reside and register in a new cell of the first SIM card without searching a network.
Further, in step S320, if the cell is reselected between systems, the physical layer of the mobile terminal is switched to the mobile communication network mode of the target cell to search for the target cell. This is a preferred implementation.
Further, in step S320, after the SIM card is camped in the target cell, if the location area changes, the SIM card starts updating the location area and informs the mobile communication network. In step S350, after the second SIM card resides in the target cell, if the location area changes, the second SIM card starts updating the location area and informs the mobile communication network. This is a preferred implementation.
Further, the step S310 is performed by an ERRC unit, or a URRC unit, or a GRR unit in the access layer of each SIM card. The step S320 is executed by the access stratum and the non-access stratum of the first SIM card. In the step S330, the ERRC unit, the URRC unit, or the GRR unit in the access layer of the first SIM card notifies the ERRC unit, the URRC unit, or the GRR unit in the access layers of the other SIM cards. In step S340, the non-access stratum of the remaining SIM cards determines. The step S350 is performed by an ERRC unit, a URRC unit, or a GRR unit in the access stratum of the second SIM card and the non-access stratum together. The step S360 is performed by an ERRC unit, or a URRC unit, or a GRR unit in the access layer of the remaining SIM cards. This is a preferred implementation.
The application also discloses a multimode multi-card mobile terminal which comprises an evaluation unit, a first residence unit, a notification unit, a judgment unit, a rapid residence unit and a second residence unit. The evaluation unit is used for correspondingly starting the intra-system reselection or inter-system reselection process of the first SIM card when the first SIM card in the mobile terminal meets the evaluation condition of the intra-system reselection cell or the inter-system reselection cell. The first resident unit is used for searching a target cell after the SIM card starts an intra-system reselection process or an inter-system reselection process, reading system information after finding the target cell, and if a resident condition is met, the SIM card selects the target cell to reside; after the successful residence, the first SIM card is registered to the target cell; and then the SIM card enters an idle state, an emergency stay state or an OOS state. The notification unit is used for notifying other SIM cards when the SIM card starts an intra-system reselection process or an inter-system reselection process, and other SIM cards temporarily cache other service and/or event requests of an upper layer at the moment; the notifying unit is further configured to notify the other SIM cards of the end of the intra-system cell reselection or the inter-system cell reselection process of the first SIM card after the first SIM card resides in the target cell, and at this time, the other SIM cards will resume processing other service and/or event requests cached in the upper layer. The judging unit is used for judging whether the other SIM cards in the mobile terminal have the same PLMN information and the same mobile communication network mode as the SIM card. The quick resident unit is used for calling a SIM card II when the SIM card with the same PLMN information and the same mobile communication network mode as the SIM card I exists; enabling the SIM card II to directly reside in the cell B registered by the SIM card I; after successful camping, the second SIM card attempts to register to the cell B. The second residence unit is used for making the rest SIM cards still reside in the original cell when the SIM card which has the same PLMN information and the same mobile communication network mode as the SIM card does not exist.
The multi-mode multi-card mobile terminal is an embodiment two of the present application, and is configured to enable a second SIM card belonging to the same mobile communication operator to quickly camp on and register in a new cell of the first SIM card without searching a network after the first SIM card reselects the cell.
Further, the evaluation unit is implemented by an access stratum of the first SIM card. The first resident unit is jointly realized by an access layer and a non-access layer of the first SIM card. The notification unit is implemented by an ERRC unit, a URRC unit or a GRR unit in an access layer of the SIM card I. The judging unit is realized by non-access layers of other SIM cards. And the fast residing unit is jointly executed by the access layer and the non-access layer of the second SIM card. The second residence unit is realized by an ERRC unit, or a URRC unit, or a GRR unit in an access layer of each SIM card. This is a preferred implementation.
The technical effect that the method and the device have the advantages that when two SIM cards in the mobile terminal belong to the same mobile communication operator, after a cell is switched or reselected by one SIM card, the second SIM card can be quickly resident and registered in a new cell of the first SIM card without searching a network, so that the second SIM card can quickly provide normal service, user experience is improved, and meanwhile the standby time of the mobile terminal can be prolonged.
Drawings
Fig. 1 is a flowchart of a mobility management method of a multimode multi-card mobile terminal according to a first embodiment of the present disclosure.
Fig. 2 is a schematic structural diagram of a first embodiment of a multimode multi-card mobile terminal provided in the present application.
Fig. 3 is a flowchart of a second embodiment of a mobility management method of a multimode multi-card mobile terminal according to the present application.
Fig. 4 is a schematic structural diagram of a second embodiment of the multimode multi-card mobile terminal provided in the present application.
The reference numbers in the figures illustrate: 210 is a first switching unit; 220 is a first registration unit; 230 is a PLMN judging unit; 240 is a mode judging unit; 250 is a fast registration unit; 260 is a second registration unit; 410 is an evaluation unit; 420 is a first dwelling unit; 430 is a notification unit; 440 is a judgment unit; 450 is a fast stay unit; 460 is a second dwelling unit.
Detailed Description
In the application, the multi-mode multi-card mobile terminal means that the mobile terminal is provided with more than two SIM cards and shares one physical layer and a radio frequency module; and the SIM card also has the same number of physical adaptation layers (PHY adapter) AS the SIM card, the same number of Non-Access Stratum (NAS) layers AS the SIM card and the same number of Access Stratum (AS) layers AS the SIM card. Each SIM card corresponds to one physical adaptation layer, one non-access layer, and one access layer.
Preferably, at least two of the SIM cards belong to the same mobile communications operator, thereby facilitating sharing of mobility management information of the mobile communications network with each other.
Please refer to fig. 1, which is a first embodiment of a mobility management method of a multi-mode multi-card mobile terminal according to the present application, and is applicable to intra-system handover, inter-system handover, and network update after CCO. An embodiment of the mobility management method includes the following steps.
Step S110: an intra-system handover, or an inter-system handover, or CCO occurs during a Connected service (Connected) by a SIM card (referred to as SIM card one), and a handover is made from a current RAT-X (Radio Access Technology, RAT) cell a to a RAT-X cell B. The RAT-X cell refers to a cell of an unspecified access mode, and may be a serving cell of any one of 2G, 3G, and 4G mobile communication networks.
Step S120: and when the service of the first SIM card is finished, the first SIM card resides in the current RAT-X cell B again. After successful camping, the SIM card attempts to register with the RAT-X cell B. After that, the SIM card enters an Idle state (Idle), an Emergency Camp On (Emergency Camp On) state, or an OOS (Out of Service) state. In this step, camping on the cell is performed by, for example, the access stratum of the SIM card one, and registering the cell is performed by, for example, the non-access stratum of the SIM card one.
Preferably, in this step, after the SIM card is camped in the target cell, if the location area changes, the SIM card starts location area update and informs the mobile communication network.
Step S130: the non-access layer of the other SIM cards determines whether the other SIM cards have the same PLMN (Public land mobile network) information as the SIM card. If so, the process proceeds to step S140. If not, the process proceeds to step S170.
Step S140: if the PLMN information of the two SIM cards is the same, the two SIM cards belong to the same mobile communication operator. At this time, the nas of the SIM card having the same PLMN information as the first SIM card (referred to as the second SIM card) continues to determine whether the second SIM card and the first SIM card are in the same mobile communication network mode. The mobile communication network mode is, for example, GSM, UTMS, LTE, or the like. If so, the process proceeds to step S150. If not, the process proceeds to step S160.
Step S150: the second SIM card directly resides in the registered RAT-X cell B of the first SIM card. After successful camping, the SIM card II tries to register to the target cell. At the moment, the second SIM card does not need to initiate the full-band network scanning again, so that the access of the second SIM card in the mobile communication network is recovered at the highest speed.
Preferably, in this step, after the second SIM card resides in the target cell, if the location area changes, the second SIM card starts location area update and informs the mobile communication network.
Step S160: the second SIM card changes the mobile communication network mode to be the same as the first SIM card, and then directly resides in the first registered RAT-X cell B of the SIM card. After successful camping, the SIM card II tries to register to the target cell. At the moment, the second SIM card does not need to initiate the full-band network scanning again, so that the access of the second SIM card in the mobile communication network is recovered at the highest speed.
Preferably, in this step, after the second SIM card resides in the target cell, if the location area changes, the second SIM card starts location area update and informs the mobile communication network.
Step S170: and the rest SIM cards try to search the cells which are resided or stored before first, and if the cells can not be found, the network is searched according to the full frequency band until a proper cell is found to reside, or the SIM cards enter an emergency residence state or an OOS state.
Referring to fig. 2, the present application provides a first embodiment of a multi-mode multi-card mobile terminal, which corresponds to the first embodiment of the mobility management method of the multi-mode multi-card mobile terminal. The embodiment of the multimode multi-card mobile terminal includes a first switching unit 210, a first registration unit 220, a PLMN judgment unit 230, a mode judgment unit 240, a fast registration unit 250 and a second registration unit 260.
The first switching unit 210 is used to switch from the current RAT-X cell a to the RAT-X cell B when an intra-system handover, or an inter-system handover, or CCO occurs during a service in a connected state by one SIM card (referred to as SIM card one). The SIM card is called a SIM card I. The first switching unit 210 is commonly executed by an access stratum and a non-access stratum of the SIM card one, for example.
The first registration unit 220 is configured to, after the service of the first SIM card is ended, re-camp the first SIM card on the current RAT-X cell B; after the residence is successful, the SIM card is registered to the RAT-X cell B; and then the SIM card enters an idle state, an emergency stay state or an OOS state. The first registration unit 220 is commonly executed by an access stratum and a non-access stratum of the first SIM card, for example.
The PLMN determining unit 230 is used to determine whether the remaining SIM cards of the mobile terminal have the same PLMN information as the first SIM card. The PLMN determining unit 230 is implemented by the non-access stratum of each of the remaining SIM cards, for example.
The mode determining unit 240 is used to determine whether a SIM card (referred to as a second SIM card) having the same PLMN information as the first SIM card and the first SIM card are in the same mobile communication network mode when the PLMN information of any SIM card is the same as that of the first SIM card. The mobile communication network mode is, for example, GSM, UTMS, LTE, or the like. The mode determination unit 240 is implemented by, for example, a non-access stratum of the SIM card two.
The fast registration unit 250 is used to directly reside the second SIM card in the RAT-X cell B where the second SIM card is registered when the PLMN information and the mobile communication network mode of the second SIM card are the same as those of the first SIM card. The fast registration unit 250 is further configured to change the mobile communication network mode of the second SIM card to be the same as the mobile communication network mode of the first SIM card when the PLMN information of the second SIM card is the same as that of the first SIM card but the mobile communication network mode of the first SIM card is different, and then directly reside the second SIM card in the registered RAT-X cell B of the first SIM card. In both cases, the second SIM card does not need to initiate a full-band scan again. The fast registration unit 250 is, for example, performed by the access stratum and the non-access stratum of the SIM card two together.
The second registration unit 260 is configured to, when PLMN information of all the remaining SIM cards is different from PLMN information of the first SIM card, attempt to search a previously camped or stored cell by the remaining SIM cards, and if the PLMN information of all the remaining SIM cards is not the same as the PLMN information of the first SIM card, search for a network according to a full frequency band again until a suitable cell is found to camp on or enter an OOS state. The second registration unit 260 is commonly executed by the access stratum and the non-access stratum of each SIM card, for example.
Please refer to fig. 3, which is a second embodiment of the mobility management method of a multi-mode multi-card mobile terminal according to the present application, and is applicable to network update after intra-system cell reselection and inter-system cell reselection. The embodiment of the mobility management method comprises the following steps.
Step S310: when the access layer of one SIM card judges that the SIM card (called as a first SIM card) meets the evaluation condition of an intra-system reselection cell or an inter-system reselection cell, correspondingly starting the intra-system reselection or inter-system reselection process of the first SIM card; and simultaneously informing the rest SIM cards, wherein the rest SIM cards temporarily cache other service/event requests of the upper layer.
In this step, whether the SIM card meets the evaluation condition is executed by, for example, an Enhanced Radio Resource Control (ERRC) unit, a Radio Resource Control (UTMS) unit, or a Radio Resource Control (URRC) unit, or a Radio Resource Control (GRR) unit in an access layer corresponding to the SIM card. The access layer corresponding to each SIM card is provided with an ERRC unit, a URRC unit and a GRR unit which are software modules, wherein each ERRC unit is correspondingly responsible for managing the radio resource control of one SIM card, each URRC unit is correspondingly responsible for managing the UTMS radio resource control of one SIM card, and each GRR unit is correspondingly responsible for managing the GSM radio resource control of one SIM card.
In this step, the caching operation of the remaining SIM cards is performed by, for example, the ERRC unit, the URRC unit, or the GRR unit corresponding to each SIM card.
Step S320: and searching a target cell by a physical layer of the mobile terminal, reading the system message after finding the target cell, and selecting the target cell to reside by the SIM card if the residence condition is met. After successful camping, the SIM card attempts to register with the target cell. And then the SIM card enters an idle state, an emergency stay state or an OOS state. In this step, camping on the cell is performed by, for example, the access stratum of the SIM card one, and registering the cell is performed by, for example, the non-access stratum of the SIM card one.
Preferably, in this step, if the inter-system cell is reselected, the physical layer of the mobile terminal is switched to the mobile communication network mode of the target cell to search the target cell. The mobile communication network mode is, for example, GSM, UTMS, LTE, or the like.
Preferably, in this step, after the SIM card is camped in the target cell, if the location area changes, the SIM card starts location area update and informs the mobile communication network.
Step S330: and the mobile terminal informs the rest SIM cards that the intra-system cell reselection of the SIM card I or the inter-system cell reselection process is finished.
Preferably, in this step, the mobile terminal notifies the remaining SIM cards of the corresponding ERRC unit, URRC unit, or GRR unit.
Step S340: and the non-access layer of the other SIM cards judges whether the other SIM cards have the same PLMN information and the same mobile communication network mode as the SIM card I. If so, the process proceeds to step S350. If either is no, the process proceeds to step S360.
Step S350: the SIM card having the same PLMN information and the same mobile communication network mode as the SIM card one (called SIM card two) directly resides in a target cell registered in the SIM card one. After successful camping, the SIM card II tries to register to the target cell. At the moment, the second SIM card does not need to initiate the full-band network scanning again, so that the access of the second SIM card in the mobile communication network is recovered at the highest speed.
Preferably, in this step, after the second SIM card resides in the target cell, if the location area changes, the second SIM card starts location area update and informs the mobile communication network.
In this step, the residing operation of the second SIM card is performed by, for example, an ERRC unit, or a URRC unit, or a GRR unit in the access stratum corresponding to the second SIM card. The registration operation of the second SIM card is performed by, for example, the non-access stratum of the second SIM card.
Step S360: and the rest SIM cards still reside in the original cell.
Preferably, in this step, the rest of the SIM cards start the evaluation and reselection process of the intra-system reselected cell or the inter-system reselected cell in due time according to the measurement report condition of the original cell.
Referring to fig. 4, a second embodiment of the multimode multi-card mobile terminal is provided in the present application, which corresponds to the second embodiment of the mobility management method of the multimode multi-card mobile terminal. The embodiment of the multimode multi-card mobile terminal comprises an evaluation unit 410, a first residing unit 420, a notification unit 430, a judgment unit 440, a fast residing unit 450 and a second residing unit 460.
The evaluation unit 410 is configured to initiate an intra-system reselection process or an inter-system reselection process of the SIM card one when any SIM card (referred to as the SIM card one) in the mobile terminal satisfies an evaluation condition of an intra-system reselection cell or an inter-system reselection cell. The evaluation unit 410 is for example performed by the access stratum of the respective SIM card.
The first camping unit 420 is configured to search for a target cell after the SIM card starts an intra-system reselection process or an inter-system reselection process, read a system message after finding the target cell, and if a camping condition is met, the SIM card selects the target cell to camp on. After the successful residence, the first SIM card is registered to the target cell; and then the SIM card enters an idle state, an emergency stay state or an OOS state. The first dwelling unit 420 is commonly executed by an access stratum and a non-access stratum of the first SIM card, for example.
The notifying unit 430 is configured to notify the remaining SIM cards as soon as the SIM card starts an intra-system reselection or an inter-system reselection process, and at this time, the remaining SIM cards will temporarily buffer other service/event requests of the upper layer. The notifying unit 430 is further configured to notify the other SIM cards of the end of the intra-system cell reselection or the inter-system cell reselection process of the first SIM card after the first SIM card resides in the target cell, and at this time, the other SIM cards will resume processing other service/event requests cached in the upper layer. The notification unit 430 is implemented by, for example, an ERRC unit, or a URRC unit, or a GRR unit in the access stratum of the SIM card one.
The determining unit 440 is used to determine whether the remaining SIM cards in the mobile terminal have the same PLMN information and the same mobile communication network mode as the SIM card. The determining unit 440 is executed by the respective non-access stratum of the remaining SIM cards, for example.
The fast camping unit 450 is used to directly camp on the SIM card two in the registered RAT cell B when there is a SIM card having the same PLMN information and the same mobile communication network mode as the SIM card one (called SIM card two). After successful camping, the SIM card II tries to register to the target cell. And if necessary, the second SIM card also updates the location area. The fast parking unit 450 is commonly executed by the access stratum and the non-access stratum of the SIM card two, for example.
The second camping unit 460 is used to camp the rest of the SIM cards in the original cell when there is no SIM card having the same PLMN information and the same mobile communication network mode as the SIM card. The second dwelling unit 460 is implemented by, for example, an ERRC unit, or a URRC unit, or a GRR unit in the access stratum of each SIM card.
The multimode multi-card mobile terminal and the mobility management method thereof have the following beneficial effects.
First, when two SIM cards in the mobile terminal belong to the same mobile communication operator, after the SIM card switches or reselects the cell, the second SIM card can quickly reside and register in the new cell of the first SIM card without searching the mobile communication network, so that the second SIM card can quickly provide normal service, and user experience is improved.
Secondly, the network searching times of the second SIM card are reduced, and the standby time of the mobile terminal can be prolonged. Under the conditions of severe and complex mobile communication network environment, the method and the device can greatly prolong the standby time of the mobile terminal.
The above are merely preferred embodiments of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (11)
1. A mobility management method of a multi-mode multi-card mobile terminal is characterized by comprising the following steps:
step S110: an SIM card is switched from a current cell A to a cell B when the SIM card is switched in a system, or switched between systems, or CCO occurs during the service in a connection state; the SIM card is called as a first SIM card;
step S120: when the service of the first SIM card is finished, the first SIM card resides in the current cell B again; after the residence is successful, the SIM card tries to register to the cell B; then the SIM card enters an idle state, an emergency stay state or an OOS state;
step S130: whether the other SIM cards have the same PLMN information with the SIM card I or not; if yes, go to step S140; otherwise, entering step S170;
step S140: the SIM card with the same PLMN information as the SIM card I is called as a SIM card II; whether the SIM card II and the SIM card I are in the same mobile communication network mode or not; if yes, go to step S150; otherwise, go to step S160;
step S150: the SIM card II directly resides in the cell B registered by the SIM card I; after the residence is successful, the SIM card II tries to register to the cell B;
step S160: the SIM card II changes the mobile communication network mode into the same mode as the SIM card I, and then directly resides in a registered cell B of the SIM card I; after the residence is successful, the SIM card II tries to register to the cell B;
step S170: and the rest SIM cards try to search the cells which are resided or stored before first, and if the cells can not be found, the network is searched according to the full frequency band until a proper cell is found to reside, or the SIM cards enter an emergency residence state or an OOS state.
2. The mobility management method of the multi-mode multi-card mobile terminal according to claim 1, wherein in step S120, after the SIM card is camped in the cell B, if the location area is changed, the SIM card starts location area update and informs the mobile communication network;
in step S150 and step S160, after the SIM card two resides in the target cell, if the location area changes, the SIM card two starts updating the location area and informs the mobile communication network.
3. The mobility management method of a multi-mode multi-card mobile terminal according to claim 1, wherein the steps S110 and S120 are performed by an access stratum and a non-access stratum of the SIM card i;
in the step S130, the non-access layers of the other SIM cards determine the SIM card;
in the step S140, the non-access layer of the SIM card two makes a judgment;
the step S150 and the step S160 are executed by an access layer of the SIM card II;
the step S170 is performed by the access stratum and the non-access stratum of the remaining SIM cards together.
4. A multimode multi-card mobile terminal is characterized by comprising a first switching unit, a first registration unit, a PLMN judgment unit, a mode judgment unit, a quick registration unit and a second registration unit;
the first switching unit is used for switching from the current cell A to the cell B when intra-system switching, or inter-system switching, or CCO occurs during the service of the SIM card in a connection state;
the first registration unit is used for the SIM card I to reside in the current cell B again after the service of the SIM card I is finished; after the residence is successful, the first SIM card is registered to the cell B; then the SIM card enters an idle state, an emergency stay state or an OOS state;
the PLMN judging unit is used for judging whether the rest SIM cards of the mobile terminal have the same PLMN information with the SIM card I;
the mode judging unit is used for calling the SIM card with the same PLMN information as the SIM card I as the SIM card II when the PLMN information of any SIM card is the same as that of the SIM card I; judging whether the SIM card II and the SIM card I are in the same mobile communication network mode or not;
the quick registration unit is used for directly residing the second SIM card in a registered cell B of the first SIM card when the PLMN information and the mobile communication network mode of the second SIM card and the first SIM card are the same; the quick registration unit is also used for changing the mobile communication network mode of the second SIM card into the same mobile communication network mode as the first SIM card when the PLMN information of the second SIM card is the same as that of the first SIM card but the mobile communication network mode of the second SIM card is different from that of the first SIM card, and then directly residing the second SIM card in a registered cell B of the first SIM card;
and the second registration unit is used for trying to search the resident or stored cell before the rest of the SIM cards are searched when the PLMN information of the rest of the SIM cards is different from that of the SIM card I, and searching the network according to the full frequency band if the resident or stored cell is not found, until a proper cell is found to reside or the OOS state is entered.
5. The multimode multi-card mobile terminal according to claim 4, wherein said first switching unit is performed by both an access stratum and a non-access stratum of a SIM card I;
the first registration unit is jointly executed by an access layer and a non-access layer of the first SIM card;
the PLMN judging unit is realized by respective non-access layers of other SIM cards;
the mode judging unit is realized by a non-access layer of the SIM card II;
the quick registration unit is realized by an access layer of the SIM card II;
the second registration unit is jointly realized by an access layer and a non-access layer of each SIM card.
6. A mobility management method is characterized by comprising the following steps:
step S310: when one SIM card meets the evaluation condition of the intra-system reselection cell or the inter-system reselection cell, the SIM card is called as a first SIM card, and the intra-system reselection or the inter-system reselection process of the first SIM card is correspondingly started; simultaneously informing other SIM cards, wherein the other SIM cards temporarily cache other service and/or event requests of an upper layer;
step S320: searching a target cell, reading system information after finding the target cell, and if the residence condition is met, selecting the target cell to reside by the SIM card; after the successful residence, the SIM card tries to register to the target cell; then the SIM card enters an idle state, an emergency stay state or an OOS state;
step S330: informing the rest SIM cards that the intra-system cell reselection of the SIM card I or the inter-system cell reselection process is finished;
step S340: whether the other SIM cards have the same PLMN information and the same mobile communication network mode as the SIM card I or not; if yes, go to step S350; otherwise, entering step S360;
step S350: the SIM card which has the same PLMN information and the same mobile communication network mode as the SIM card I is called as an SIM card II; directly residing the SIM card II in a registered cell of the SIM card I; after the residence is successful, the SIM card II tries to register to the cell;
step S360: and the rest SIM cards still reside in the original cell.
7. The mobility management method of claim 6, wherein in step S320, if the cell is reselected between systems, the physical layer of the mobile terminal is switched to the mobile communication network mode of the target cell to search for the target cell.
8. The mobility management method of claim 6, wherein in step S320, after the SIM card is camped in the target cell, if the location area changes, the SIM card starts location area update and informs the mobile communication network;
in step S350, after the second SIM card resides in the target cell, if the location area changes, the second SIM card starts updating the location area and informs the mobile communication network.
9. The mobility management method of claim 6, wherein the step S310 is performed by an ERRC unit, a URRC unit, or a GRR unit in an access stratum of each SIM card;
the step S320 is executed by the access layer and the non-access layer of the first SIM card together;
in the step S330, the ERRC unit, the URRC unit, or the GRR unit in the access layer of the first SIM card notifies the ERRC unit, the URRC unit, or the GRR unit in the access layers of the other SIM cards;
in the step S340, the non-access layers of the other SIM cards determine;
the step S350 is executed by an ERRC unit, or a URRC unit, or a GRR unit in the access stratum of the second SIM card and the non-access stratum together;
the step S360 is performed by an ERRC unit, or a URRC unit, or a GRR unit in the access layer of the remaining SIM cards.
10. A multimode multi-card mobile terminal is characterized by comprising an evaluation unit, a first residence unit, a notification unit, a judgment unit, a quick residence unit and a second residence unit;
the evaluation unit is used for correspondingly starting an intra-system reselection process or an inter-system reselection process of the first SIM card when the first SIM card in the mobile terminal meets the evaluation condition of an intra-system reselection cell or an inter-system reselection cell;
the first resident unit is used for searching a target cell after the SIM card starts an intra-system reselection process or an inter-system reselection process, reading system information after finding the target cell, and if a resident condition is met, the SIM card selects the target cell to reside; after the successful residence, the first SIM card is registered to the target cell; then the SIM card enters an idle state, an emergency stay state or an OOS state;
the notification unit is used for notifying other SIM cards when the SIM card starts an intra-system reselection process or an inter-system reselection process, and other SIM cards temporarily cache other service and/or event requests of an upper layer at the moment; the notifying unit is further configured to notify the other SIM cards that the intra-system cell reselection or the inter-system cell reselection process of the SIM card is finished after the SIM card i resides in the target cell, and at this time, the other SIM cards resume processing other service and/or event requests cached in the upper layer;
the judging unit is used for judging whether the rest SIM cards in the mobile terminal have the same PLMN information and the same mobile communication network mode as the SIM card I;
the quick resident unit is used for calling a SIM card II when the SIM card with the same PLMN information and the same mobile communication network mode as the SIM card I exists; enabling the SIM card II to directly reside in the cell B registered by the SIM card I; after the residence is successful, the SIM card II tries to register to the cell B;
the second residence unit is used for making the rest SIM cards still reside in the original cell when the SIM card which has the same PLMN information and the same mobile communication network mode as the SIM card does not exist.
11. A multimode multi-card mobile terminal according to claim 10, characterized in that said evaluation unit is implemented by the access stratum of SIM card one;
the first resident unit is jointly realized by an access layer and a non-access layer of the first SIM card;
the notification unit is realized by an ERRC unit, a URRC unit or a GRR unit in an access layer of the SIM card I;
the judging unit is realized by non-access layers of other SIM cards;
the quick residing unit is jointly executed by an access layer and a non-access layer of the second SIM card;
the second residence unit is realized by an ERRC unit, or a URRC unit, or a GRR unit in an access layer of each SIM card.
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