CN111065134B - Multi-card multi-4G mobile terminal and method for sharing 4G measuring capability thereof - Google Patents
Multi-card multi-4G mobile terminal and method for sharing 4G measuring capability 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
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
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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
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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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
Abstract
The application discloses a method for sharing 4G measurement capability of a multi-card multi-4G mobile terminal. When the first 4G SIM card interrupts the service of the second 2G or 3G SIM card, the second SIM card is provided for the first SIM card if the second SIM card has a 4G neighbor cell. And the first SIM card carries out the 4G co-frequency and inter-frequency measurement on the 4G adjacent cells provided by the second SIM card. And when the measurement result of the first SIM card comprises the 4G adjacent cell provided by the second SIM card, providing the corresponding measurement result to the second SIM card. And when the second SIM card receives the measurement results and the second SIM card is still in a standby state, performing intersystem reselection evaluation on the measurement results. And if the condition is met, recording the cell as a 4G target cell and requesting to recover the second SIM card. And after the SIM card II is recovered, if a 4G target cell exists, directly initiating reselection to the SIM card II. When the application meets the specific conditions, the first SIM card shares the 4G measurement capability of the first SIM card to the second SIM card, so that the second SIM card can quickly reselect the 4G mode from the 2G or 3G mode.
Description
Technical Field
The application relates to a method for quickly reselecting a SIM card in a multi-card multi-4G mobile terminal from a 2G or 3G mobile communication network to a 4G mobile communication network, in particular to a method for sharing 4G measurement capability among SIM cards in the multi-card multi-4G mobile terminal under a specific condition so as to improve the system switching performance from the 2G or 3G mobile communication network to the 4G mobile communication network.
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 mobile terminal (UE) supporting GSM, UMTS, and LTE has been widely used. In order to reasonably utilize the mobile communication network resources, mobile communication operators can adopt various different network switching strategies, so that mobile terminals can be flexibly switched on different mobile communication networks, and users can be guaranteed to always enjoy the optimal network service. Since the 4G network has higher data transmission rate and unique Voice over LTE (Voice over LTE) Voice service, "4G first" is a standard network selection configuration in most 4G mobile terminals.
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 subscriber Identity module) and the like having the same function in different mobile communication networks.
The multi-card multi-4G mobile terminal means that the mobile terminal is provided with a plurality of SIM cards, each SIM card is a 4G multi-mode SIM card, and the mobile terminal can simultaneously work in a 4G mode. The 4G multi-mode SIM card can automatically select to reside in a 2G, 3G or 4G mobile communication network according to the network environment, for example, corresponding to a GSM, UTMS or LTE network respectively. The user can arbitrarily select one SIM card as a main card for bearing data service; the rest SIM cards are used as auxiliary cards, but can still use services such as VoLTE high-definition voice, video and the like.
In the existing multi-card multi-4G mobile terminal, the data service of the main card is nearly in a always connected state, and the frequent uplink and downlink data transmission on the main card occupies more resources of a physical layer and a radio frequency module of the mobile terminal, so that the situation that the inter-system cell measurement and reselection cannot be completed in time due to insufficient resources sometimes occurs in the auxiliary card. In use, once the secondary card is switched into the 2G or 3G mobile communication network, the secondary card cannot reselect the 4G mobile communication network for a long time, so that the 4G service on the secondary card cannot be performed, and the actual application and implementation of the network switching policy of the mobile communication operator are also affected.
Disclosure of Invention
The technical problem to be solved by the present application is to provide a method for sharing 4G measurement capability by a multi-card multi-4G mobile terminal, which can enable a SIM card in a 2G or 3G mode to quickly reselect back to a 4G mode when a specific condition is met, wherein the SIM card currently in the 4G mode contributes to its 4G measurement capability. Therefore, the application also provides a corresponding multi-card multi-4G mobile terminal.
In order to solve the technical problem, the application provides a method for sharing 4G measurement capability by a multi-card multi-4G mobile terminal, which comprises the following steps. Step S110: when the SIM card residing in the 4G mobile communication network initiates a service and interrupts the service of the SIM card II residing in the 2G or 3G mobile communication network, the SIM card II enters a standby state. Step S120: if the SIM card two has 4G adjacent cell information, the information is provided to the SIM card one. Step S130: and the SIM card I combines the 4G adjacent cell list provided by the SIM card II into a 4G same-frequency and different-frequency measurement list of the SIM card I to carry out 4G same-frequency and different-frequency measurement. Step S140: and when the frequency points of the 4G adjacent cells provided by the second SIM card are contained in the measurement results of the same frequency and different frequency of the 4G of the first SIM card, the first SIM card provides the measurement results of the 4G adjacent cells provided by the second SIM card to the second SIM card. Step S150: when the second SIM card receives the measurement result of the 4G neighboring cell provided by the first SIM card and the second SIM card is still in the standby state, the measurement result of the 4G neighboring cell is subjected to the inter-system reselection evaluation from the 2G or 3G mobile communication network to the 4G mobile communication network. Step S160: and when the SIM card II finds that the 4G adjacent cell which meets the intersystem reselection evaluation condition exists, recording the 4G adjacent cell as a reselected 4G target cell, and requesting to recover the service of the SIM card II. Step S170: when the SIM card II receives a recovery instruction, the SIM card II exits the standby state; if the recorded 4G target cell exists, directly reselecting the 4G target cell; if there is no recorded 4G target cell, the process proceeds to step S180. Step S180: and the second SIM card resumes starting the inter-system measurement and reselection evaluation in the 2G or 3G mode.
When the multi-card multi-4G mobile terminal meets the specific conditions, the first SIM card shares the 4G measurement capability of the first SIM card to the second SIM card, so that the second SIM card can be helped to quickly reselect back to the 4G mode from the 2G or 3G mode.
Further, in the step S130, as long as the stop command is not received, the 4G intra-frequency and inter-frequency measurement will continuously obtain periodic measurement results. This is a common implementation.
Further, in step S140, if the measurement result of a certain time does not include the frequency point of the 4G neighbor cell provided by the SIM card two, the SIM card waits for the measurement result of the next period. This is a preferred implementation.
Further, in step S140, the first SIM card provides the measurement result of the 4G neighbor cell including the second SIM card each time to the second SIM card. This is a preferred implementation.
Further, in step S160, when the second SIM card does not find a 4G neighboring cell meeting the inter-system reselection evaluation condition, it continues to wait for the first SIM card to provide a new 4G neighboring cell measurement result. This is a preferred implementation.
Further, in step S160, after recording the reselected 4G target cell, the SIM card two requests the multi-card scheduling mechanism to recover. In step S170, the 4G module of the first SIM card sends a recovery instruction to the 2G or 3G module of the second SIM card through the multi-card scheduling mechanism; and after the 2G or 3G module of the SIM card II receives the recovery instruction, the state of the SIM card II enters the reselection activation state again from the interrupted standby state. This is a preferred implementation.
Further, in step S170, the implementation manner of the second SIM card directly initiating reselection to the 4G target cell is as follows: the 2G or 3G module of the SIM card II checks the current recorded 4G reselected target cell and initiates network searching residence to the 4G target cell; the 2G or 3G module of the second SIM card sends a reselection request instruction to an intersystem reselection control module of the second SIM card, and the reselection request instruction requires to be reselected to a 4G mobile communication network by using a G2L evaluation mode, wherein the reselection request instruction comprises the information of the 4G target cell, and then the 2G or 3G module of the second SIM card enters an inactive state from an active state; the inter-system reselection control module of the second SIM card sends an activation instruction for G2L reselection evaluation to the 4G module of the second SIM card, where the activation instruction includes the 4G target cell information; after receiving the reselection evaluation instruction of G2L, the 4G module of the SIM card II enters an activated state from an inactivated state and resides in the 4G target cell; and then the 4G module of the second SIM card replies a G2L signal of successful reselection to the intersystem reselection control module of the second SIM card. This is a preferred implementation.
Further, in step S170, if the SIM card two attempts to camp on the 4G target cell fail, the SIM card reselects to the 2G or 3G mobile communication network, and resumes starting the inter-system measurement and reselection evaluation in the 2G or 3G mode. This is a preferred implementation.
The application also provides a multi-card multi-4G mobile terminal, which comprises a multi-card scheduling unit, a neighboring cell judging unit, a measuring result judging unit, a standby state judging unit, a reselection evaluation judging unit, a first SIM card executing unit and a second SIM card executing unit. The multi-card scheduling unit is used for managing a scheduling mechanism of a plurality of SIM cards in the mobile terminal based on service priority. The adjacent cell judging unit is used for judging whether the second SIM card has 4G adjacent cell information after the second SIM card enters a standby state; if so, providing the SIM card to an execution unit of the SIM card; and if the SIM card does not exist, informing the SIM card two execution units. The measurement result judging unit is used for judging whether the 4G co-frequency and inter-frequency measurement results of the SIM card I contain the frequency points of the 4G adjacent cells provided by the SIM card II; if yes, providing the measurement result of the 4G adjacent cell of the corresponding SIM card II to the SIM card II execution unit; if not, the SIM card II is informed to execute the unit. The standby state judging unit is used for judging whether the SIM card II is in a standby state. The reselection evaluation judging unit judges whether the reselection evaluation result of the SIM card two execution unit contains a 4G adjacent cell which accords with the intersystem reselection evaluation condition; if yes, recording the 4G adjacent cell as a reselected 4G target cell, and informing an SIM card two execution unit; if not, directly informing the second execution unit of the SIM card. And the SIM card I execution unit is used for merging the information of the 4G adjacent cells of the SIM card II into a 4G same-frequency and different-frequency measurement list of the SIM card I after receiving the information of the 4G adjacent cells of the SIM card II, and performing 4G same-frequency and different-frequency measurement together. The SIM card two execution unit is used for enabling the SIM card to enter a corresponding standby or recovery activation state after receiving a standby or recovery instruction sent by the multi-card scheduling unit; the second SIM card execution unit is also used for performing intersystem reselection evaluation from the 2G or 3G mobile communication network to the 4G mobile communication network on the measurement results of the 4G adjacent cells when the measurement results of the 4G adjacent cells are received and the SIM card execution unit is in a standby state; the SIM card two execution unit is also used for requesting the multi-card scheduling unit to recover the service of the SIM card two when the reselection evaluation judgment unit records the 4G target cell, and directly reselecting the 4G target cell after the SIM card two is recovered to be in an activated state and when the 4G target cell exists; the second SIM card execution unit is further configured to, after the second SIM card is recovered to the activated state and when the 4G target cell does not exist, recover the second SIM card to start the inter-system measurement and reselection evaluation in the 2G mode.
When the multi-card multi-4G mobile terminal meets specific conditions, the first SIM card shares the 4G measurement capability of the first SIM card to the second SIM card, so that the second SIM card is helped to quickly reselect back to the 4G mode from the 2G or 3G mode.
Further, the multi-card scheduling unit is realized by the cooperation of a processor in the mobile terminal and the 2G module, the 3G module and the 4G module of each SIM card. The adjacent cell judging unit is realized by a 2G module and a 3G module of a SIM card II in the mobile terminal. The measurement result judging unit is realized by a 4G module of a first SIM card in the mobile terminal. The standby state judging unit is realized by a 2G module, a 3G module and a 4G module of a second SIM card in the mobile terminal. The reselection evaluation and judgment unit can be realized by a 2G module and a 3G module of a first SIM card in the mobile terminal. The first SIM card execution unit is realized by a 4G module of a first SIM card in the mobile terminal. The second SIM card execution unit is realized by each module corresponding to the second SIM card in the mobile terminal. This is a preferred implementation.
The technical effect achieved by the application is that when the specific conditions are met, the first SIM card shares the 4G measurement capability of the first SIM card with the second SIM card, so that the second SIM card is helped to quickly reselect back to the 4G mode from the 2G or 3G mode.
Drawings
Fig. 1 is a flowchart of a method for sharing 4G measurement capability by a multi-card multi-4G mobile terminal provided by the present application.
Fig. 2 is a schematic structural diagram of a multi-card multi-4G mobile terminal provided by the present application.
The reference numbers in the figures illustrate: 200 is a multi-card multi-4G mobile terminal; 210 is a multi-card scheduling unit; 220 is a neighboring cell judgment unit; 230 is a measurement result judgment unit; 240 is a standby state judgment unit; 250 is a reselection evaluation judgment unit; 260 is an execution unit of the SIM card; and 270 is a SIM card two execution unit.
Detailed Description
In this application, the multi-card multi-4G mobile terminal means that the mobile terminal has more than two SIM cards, each SIM card is a 4G multi-mode SIM card, and can simultaneously operate in a 4G mode. The user can arbitrarily select one SIM card as a main card for bearing data service; the rest SIM cards are used as auxiliary cards, but can still use services such as VoLTE high-definition voice, video and the like. All SIM cards share a set of physical layer and radio frequency module resources, the occupation of bottom layer resources by each SIM card is managed by a scheduling mechanism based on service priority, when one SIM card initiates a high-priority service, the scheduling mechanism can interrupt the operation of low-priority services of other SIM cards, thereby ensuring that the SIM card where the high-priority service is located preferentially obtains the use right of the bottom layer resources, at the moment, the other SIM cards can enter a standby state, suspend certain actions needing to use the bottom layer resources, and wait for the recovery of the scheduling mechanism.
Referring to fig. 1, the method for sharing 4G measurement capability by a multi-card multi-4G mobile terminal provided by the present application includes the following steps.
Step S110: when one SIM card (for example, called as SIM card one) residing in the 4G mobile communication network initiates a service and interrupts the service of the other SIM card (for example, called as SIM card two) residing in the 2G or 3G mobile communication network, the SIM card two enters a standby state. If the second SIM card is performing the inter-system measurement and reselection evaluation in the 2G or 3G mode before, the execution is also stopped.
Step S120: if the SIM card two has 4G adjacent cell information, the information is provided to the SIM card one. If the SIM card II does not have the 4G adjacent cell information, no processing is carried out.
Step S130: and the SIM card I combines the 4G adjacent cell list provided by the SIM card II into a 4G same-frequency and different-frequency measurement list of the SIM card I to carry out 4G same-frequency and different-frequency measurement. At this time, the first SIM card performs 4G measurement instead of the second SIM card, or the second SIM card shares the 4G measurement capability of the first SIM card.
Step S140: and when the frequency points of the 4G adjacent cells provided by the second SIM card are contained in the measurement results of the same frequency and different frequency of the 4G of the first SIM card, the first SIM card provides the measurement results of the 4G adjacent cells provided by the second SIM card to the second SIM card. Generally, after the 4G intra-frequency and inter-frequency measurement is started, periodic measurement results are continuously obtained as long as no stop command is received. Therefore, if the frequency point of the 4G neighbor cell provided by the SIM card two is not included in the measurement result of a certain time, the measurement result of the next period can be waited. Preferably, the first SIM card also provides the second SIM card with the measurement results of the 4G neighbor cells each time the second SIM card is included.
Step S150: when the second SIM card receives the measurement result of the 4G neighboring cell provided by the first SIM card and the second SIM card is still in the standby state, the measurement result of the 4G neighboring cell is subjected to the inter-system reselection evaluation from the 2G or 3G mobile communication network to the 4G mobile communication network. And if the second SIM card is not in the standby state at the moment, no processing is performed.
In this step, it is determined whether the second SIM card is in the standby state, mainly based on the following consideration. When the service on the first SIM card is still in progress, since only one SIM card can execute the service at the same time, the second SIM card is necessarily in a standby state. If the second SIM card initiates a service with higher priority than the first SIM card, the service which is executed by the first SIM card is interrupted in reverse, and the high-priority service is executed on the current 2G or 3G mobile communication network. In this case, SIM card two no longer needs to process the 4G neighbor cell measurement results provided by SIM card one. Therefore, when the second SIM card is not in the standby state, the 4G neighbor cell measurement result provided by the first SIM card needs to be ignored without any processing.
Step S160: and when the SIM card II finds that the 4G adjacent cell which meets the intersystem reselection evaluation condition exists, recording the 4G adjacent cell as a reselected 4G target cell, and requesting to recover the service of the SIM card II. And when the SIM card II does not find the 4G adjacent cell which meets the intersystem reselection evaluation condition, continuously waiting for the SIM card I to provide a new 4G adjacent cell measurement result.
Step S170: and when the SIM card II receives the recovery instruction, the SIM card II exits the standby state. If the recorded 4G target cell exists, directly reselecting the 4G target cell; if there is no recorded 4G target cell, the process proceeds to step S180.
Step S180: and the second SIM card resumes starting the inter-system measurement and reselection evaluation in the 2G or 3G mode. This indicates that the second SIM card cannot successfully share the measurement result of the 4G neighbor cell from the first SIM card during the standby period of the second SIM card, or the 4G neighbor cell provided by the first SIM card does not satisfy the 4G cell reselection evaluation condition of the second SIM card although the measurement result is shared. At this time, the second SIM card can only start intersystem reselection in the 2G or 3G mode by itself to perform measurement of the 4G cell by itself.
Preferably, in step S160, the second SIM card requests recovery from the multi-card scheduling mechanism after recording the reselected 4G target cell. The active request recovery mechanism needs the 2G or 3G module of the second SIM card and the 4G module of the first SIM card to be matched with each other.
Preferably, in step S170, the 4G module of the first SIM card sends a recovery instruction to the 2G or 3G module of the second SIM card through a multi-card scheduling mechanism. And after the 2G or 3G module of the SIM card II receives the recovery instruction, the state of the SIM card II enters the reselection activation state again from the interrupted standby state.
Preferably, in step S170, the implementation manner of the second SIM card directly initiating reselection to the 4G target cell is as follows. And the 2G or 3G module of the SIM card II checks the currently recorded 4G reselected target cell and initiates network searching and residing towards the 4G target cell. The 2G or 3G module of the second SIM card sends a reselection request (reselection request) command to the inter-system reselection control module of the second SIM card, which requests to reselect to the 4G mobile communication network using the G2L evaluation (G2L, evaluation) mode, where the reselection request includes the 4G target cell information, and then the 2G or 3G module of the second SIM card enters an inactive state from an active state. The inter-system reselection control module of the second SIM card sends an activation command of G2L reselection evaluation (G2L reselection evaluation) to the 4G module of the second SIM card, which includes the 4G target cell information. And after receiving the reselection evaluation instruction of G2L, the 4G module of the SIM card II enters an activated state from an inactivated state and resides in the 4G target cell. Then the 4G module of the second SIM card replies a G2L reselection success (G2L reselection success) signal to the inter-system reselection control module of the second SIM card. At last, the second SIM card successfully reselects the 4G mobile communication network from the 2G or 3G mobile communication network by utilizing the shared 4G measurement capability of the first SIM card.
Preferably, in the step S170, if the SIM card two attempts to camp on the 4G target cell fail, the SIM card reselects to the 2G or 3G mobile communication network, and resumes to start the inter-system measurement and reselection evaluation in the 2G or 3G mode.
The application considers that when one SIM card (supposed to be a first SIM card) in a multi-card multi-4G mobile terminal works in a 4G mode and the other SIM card (supposed to be a second SIM card) works in a 2G or 3G mode, if 4G data service on the first SIM card is busy and uplink and downlink data are continuously transmitted, a physical layer and a radio frequency module of the mobile terminal are frequently occupied by the first SIM card, the second SIM card is frequently interrupted by a multi-card scheduling mechanism, and inter-system measurement in the 2G or 3G mode cannot be completed in time, so that a 4G mobile communication network cannot be reselected for a long time. When the method meets the specific conditions, the second SIM card informs the first SIM card of the 4G neighbor cell information, the first SIM card shares the 4G measurement capability of the first SIM card, the second SIM card replaces the second SIM card to complete the 4G neighbor cell measurement, the second SIM card evaluates to obtain the 4G reselection target cell under the condition of not starting the inter-system measurement, meanwhile, the second SIM card requests to recover to a multi-card scheduling mechanism, and when a recovery instruction is obtained, the second SIM card directly initiates reselection to the 4G target cell.
Referring to fig. 2, the present application also provides a multi-card multi-4G mobile terminal corresponding to the method of sharing 4G measurement capability of the multi-card multi-4G mobile terminal shown in fig. 1. The multi-card multi-4G mobile terminal 200 includes a multi-card scheduling unit 210, a neighboring cell determining unit 220, a measurement result determining unit 230, a standby state determining unit 240, a reselection evaluation determining unit 250, a first SIM card executing unit 260, and a second SIM card executing unit 270.
The multi-card scheduling unit 210 is responsible for managing a scheduling mechanism of multiple SIM cards in a mobile terminal based on service priority. When one SIM card initiates a high-priority service, the multi-card scheduling unit 210 interrupts the operation of the low-priority services of the other SIM cards, and at this time, the other SIM cards enter a standby state to wait for the recovery of the multi-card scheduling unit 210. For example, when a certain SIM card (for example, referred to as a first SIM card) residing in the 4G mobile communication network initiates a service and interrupts a service of another SIM card (for example, referred to as a second SIM card) residing in the 2G or 3G mobile communication network, a standby instruction is issued to the second SIM card execution unit 270. For another example, when receiving a recovery request of the second SIM card from the reselection evaluation determining unit 250, a recovery instruction is optionally sent to the second SIM card executing unit 270 as soon as possible. The multi-card scheduling unit 210 is implemented by, for example, a processor in the mobile terminal and a 2G module, a 3G module, and a 4G module of each SIM card in cooperation.
The neighboring cell determining unit 220 is configured to determine whether the second SIM card has 4G neighboring cell information after the second SIM card enters the standby state. If so, it is provided to a SIM card-executing unit 260. If not, the second SIM card execution unit 270 is notified. The neighboring cell determining unit 220 is implemented by, for example, a 2G module and a 3G module of a second SIM card in the mobile terminal.
The measurement result determining unit 230 is configured to determine whether the measurement results of the first 4G co-frequency and inter-frequency of the SIM card include the frequency points of the 4G neighboring cells provided by the second SIM card. If included, the measurement results of the 4G neighbor cells of the corresponding second SIM card are provided to the second SIM card performing unit 270. If not, the SIM card II execution unit 270 is notified. The measurement result determining unit 230 may be implemented by a 4G module of a first SIM card in the mobile terminal.
The standby state determining unit 240 is used to determine whether the SIM card two is in a standby state. The standby state determining unit 240 is implemented by, for example, a 2G module, a 3G module and a 4G module of a second SIM card in the mobile terminal.
The reselection evaluation determining unit 250 determines whether the reselection evaluation result of the SIM card two executing unit 270 includes a 4G neighboring cell meeting the intersystem reselection evaluation condition. If yes, the 4G neighboring cell is recorded as the reselected 4G target cell, and the SIM card two executing unit 270 is notified. If not, the second SIM card execution unit 270 is directly notified. The reselection evaluation and judgment unit 250 can be implemented by, for example, a 2G module and a 3G module of a first SIM card in the mobile terminal.
The first SIM card executing unit 260 is configured to, after receiving the information of the 4G neighboring cells of the second SIM card, combine the information into the 4G common-frequency and different-frequency measurement list of the first SIM card, and perform the 4G common-frequency and different-frequency measurement together. The SIM card one executing unit 260 is implemented by, for example, a 4G module of a SIM card one in the mobile terminal.
The second SIM card execution unit 270 is configured to enable the SIM card to enter a corresponding standby or activated state after receiving the standby or activated instruction sent by the multi-card scheduling unit 210. The second SIM card execution unit 270 is further configured to perform intersystem reselection evaluation on the measurement results of the 4G neighboring cells from the 2G or 3G mobile communication network to the 4G mobile communication network when the measurement results of the 4G neighboring cells are received and the SIM card execution unit is in the standby state. The second SIM card executing unit 270 is further configured to, when the reselection evaluation determining unit 250 records the 4G target cell, request the multi-card scheduling unit 210 to recover the service of the second SIM card, and directly initiate reselection to the 4G target cell after the second SIM card is recovered to the active state and when the 4G target cell already exists. The second SIM card executing unit 270 is further configured to, after the second SIM card recovers to the activated state and when the 4G target cell does not exist, enable the second SIM card to recover to start the inter-system measurement and reselection evaluation in the 2G mode. The second SIM card execution unit 270 is implemented by, for example, each module corresponding to the second SIM card in the mobile terminal.
The multi-card multi-4G mobile terminal and the method for sharing the 4G measuring capability thereof have the following beneficial technical effects.
First, a plurality of SIM cards in a multi-card multi-4G mobile terminal may share a 4G measurement capability with each other. Specifically, the SIM card in 4G mode replaces the SIM card in 2G or 3G mode to perform measurements on the 4G neighbor cells of the second SIM card. Therefore, the measurement and evaluation process of the second SIM card on the 4G adjacent cell can be accelerated, the speed of reselecting the second SIM card from the 2G or 3G mobile communication network to the 4G mobile communication network is accelerated, and the reselection performance is improved.
Secondly, when the specific conditions are met, the method and the device can reduce the 4G measurement working time of the multi-card multi-4G mobile terminal, thereby reducing the power consumption of the mobile terminal and being beneficial to prolonging the standby time and the battery life 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 (9)
1. A method for sharing 4G measurement capability by a multi-card multi-4G mobile terminal is characterized by comprising the following steps:
step S110: when the SIM card residing in the 4G mobile communication network initiates a service and interrupts the service of the SIM card II residing in the 2G or 3G mobile communication network, the SIM card II enters a standby state;
step S120: if the SIM card II has the 4G adjacent cell information, providing the information to the SIM card I;
step S130: the SIM card I combines the 4G adjacent cell list provided by the SIM card II into a 4G same-frequency and different-frequency measurement list of the SIM card I, performs 4G same-frequency and different-frequency measurement, and continuously obtains a periodic measurement result when a stop command is not received;
step S140: when the frequency points of the 4G adjacent cells provided by the second SIM card are contained in the measurement results of the same frequency and different frequency of the 4G of the first SIM card, the first SIM card provides the measurement results of the 4G adjacent cells provided by the second SIM card to the second SIM card;
step S150: when the second SIM card receives the measurement result of the 4G adjacent cells provided by the first SIM card and the second SIM card is still in a standby state, performing intersystem reselection evaluation from the 2G or 3G mobile communication network to the 4G mobile communication network on the measurement results of the 4G adjacent cells;
step S160: when the SIM card II finds that a 4G adjacent cell which meets the intersystem reselection evaluation condition exists, recording the 4G adjacent cell as a reselected 4G target cell, and requesting to recover the service of the SIM card II;
step S170: when the SIM card II receives a recovery instruction, the SIM card II exits the standby state; if the recorded 4G target cell exists, directly reselecting the 4G target cell; if the recorded 4G target cell does not exist, the step S180 is carried out;
step S180: and the second SIM card resumes starting the inter-system measurement and reselection evaluation in the 2G or 3G mode.
2. The method as claimed in claim 1, wherein in step S140, if the measurement result of a certain time does not include the frequency point of the 4G neighbor cell provided by the SIM card two, the SIM card waits for the measurement result of the next cycle.
3. The method of claim 1, wherein in step S140, the first SIM card provides the second SIM card with the measurement results of the 4G neighbor cells each time the second SIM card is included in the multi-card multi-4G mobile terminal.
4. The method of claim 3, wherein in step S160, when no 4G neighbor cell meeting the inter-system reselection evaluation condition is found in the SIM card II, the SIM card II continues to wait for the SIM card I to provide a new 4G neighbor cell measurement result.
5. The method according to claim 1, wherein in step S160, the SIM card two requests the multi-card scheduling mechanism to recover after recording the reselected 4G target cell;
in step S170, the 4G module of the first SIM card sends a recovery instruction to the 2G or 3G module of the second SIM card through the multi-card scheduling mechanism; and after the 2G or 3G module of the SIM card II receives the recovery instruction, the state of the SIM card II enters the reselection activation state again from the interrupted standby state.
6. The method of claim 1, wherein in step S170, the implementation manner of the SIM card ii directly reselecting the 4G target cell is as follows: the 2G or 3G module of the SIM card II checks the current recorded 4G reselected target cell and initiates network searching residence to the 4G target cell; the 2G or 3G module of the second SIM card sends a reselection request instruction to an intersystem reselection control module of the second SIM card, and the reselection request instruction requires to be reselected to a 4G mobile communication network by using a G2L evaluation mode, wherein the reselection request instruction comprises the information of the 4G target cell, and then the 2G or 3G module of the second SIM card enters an inactive state from an active state; the inter-system reselection control module of the second SIM card sends an activation instruction for G2L reselection evaluation to the 4G module of the second SIM card, where the activation instruction includes the 4G target cell information; after receiving the reselection evaluation instruction of G2L, the 4G module of the SIM card II enters an activated state from an inactivated state and resides in the 4G target cell; and then the 4G module of the second SIM card replies a G2L signal of successful reselection to the intersystem reselection control module of the second SIM card.
7. The method as claimed in claim 1, wherein in step S170, if the second SIM card attempt to camp on the 4G target cell fails, the SIM card reselects to the 2G or 3G mobile communication network, and resumes initiating the inter-system measurement and reselection evaluation in the 2G or 3G mode.
8. A multi-card multi-4G mobile terminal is characterized by comprising a multi-card scheduling unit, a neighboring cell judging unit, a measuring result judging unit, a standby state judging unit, a reselection evaluation judging unit, an SIM card one executing unit and an SIM card two executing unit;
the multi-card scheduling unit is used for managing a scheduling mechanism of a plurality of SIM cards in the mobile terminal based on service priority;
the adjacent cell judging unit is used for judging whether the second SIM card has 4G adjacent cell information after the second SIM card enters a standby state; if so, providing the SIM card to an execution unit of the SIM card; if the SIM card does not exist, notifying the SIM card II to execute the unit;
the measurement result judging unit is used for judging whether the 4G co-frequency and inter-frequency measurement results of the SIM card I contain the frequency points of the 4G adjacent cells provided by the SIM card II; if yes, providing the measurement result of the 4G adjacent cell of the corresponding SIM card II to the SIM card II execution unit; if not, notifying the second execution unit of the SIM card;
the standby state judging unit is used for judging whether the SIM card II is in a standby state;
the reselection evaluation judging unit judges whether the reselection evaluation result of the SIM card two execution unit contains a 4G adjacent cell which accords with the intersystem reselection evaluation condition; if yes, recording the 4G adjacent cell as a reselected 4G target cell, and informing an SIM card two execution unit; if not, directly notifying the second execution unit of the SIM card;
the SIM card I execution unit is used for merging the information of the 4G adjacent cells of the SIM card II into a 4G same-frequency and different-frequency measurement list of the SIM card I after receiving the information of the 4G adjacent cells of the SIM card II, performing 4G same-frequency and different-frequency measurement together, and continuously obtaining a periodic measurement result when a stop command is not received;
the SIM card two execution unit is used for enabling the SIM card to enter a corresponding standby or recovery activation state after receiving a standby or recovery instruction sent by the multi-card scheduling unit; the second SIM card execution unit is also used for performing intersystem reselection evaluation from the 2G or 3G mobile communication network to the 4G mobile communication network on the measurement results of the 4G adjacent cells when the measurement results of the 4G adjacent cells are received and the SIM card execution unit is in a standby state; the SIM card two execution unit is also used for requesting the multi-card scheduling unit to recover the service of the SIM card two when the reselection evaluation judgment unit records the 4G target cell, and directly reselecting the 4G target cell after the SIM card two is recovered to be in an activated state and when the 4G target cell exists; the second SIM card execution unit is further configured to, after the second SIM card is recovered to the activated state and when the 4G target cell does not exist, recover the second SIM card to start the inter-system measurement and reselection evaluation in the 2G mode.
9. The multi-card multi-4G mobile terminal of claim 8, wherein the multi-card scheduling unit is implemented by a processor in the mobile terminal and a 2G module, a 3G module and a 4G module of each SIM card in cooperation;
the adjacent cell judging unit is realized by a 2G module and a 3G module of an SIM card II in the mobile terminal;
the measurement result judging unit is realized by a 4G module of a first SIM card in the mobile terminal;
the standby state judging unit is realized by a 2G module, a 3G module and a 4G module of a second SIM card in the mobile terminal;
the reselection evaluation judging unit can be realized by a 2G module and a 3G module of a first SIM card in the mobile terminal;
the SIM card I execution unit is realized by a 4G module of an SIM card I in the mobile terminal;
the second SIM card execution unit is realized by each module corresponding to the second SIM card in the mobile terminal.
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| EP4156774A4 (en) * | 2020-05-18 | 2024-02-21 | Beijing Xiaomi Mobile Software Co Ltd | Cell switching method and apparatus, and storage medium |
| CN112333734B (en) * | 2020-11-04 | 2022-11-18 | 维沃移动通信有限公司 | Serving cell switching method and device |
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