CN110167090B - Multi-mode single-card combined attachment method and device - Google Patents
Multi-mode single-card combined attachment method and device Download PDFInfo
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- CN110167090B CN110167090B CN201910600337.9A CN201910600337A CN110167090B CN 110167090 B CN110167090 B CN 110167090B CN 201910600337 A CN201910600337 A CN 201910600337A CN 110167090 B CN110167090 B CN 110167090B
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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
- H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
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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
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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
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Abstract
The invention discloses a multi-mode single-card combined attachment method and device. The method comprises the following steps: when the multi-mode single card reselects a cell, acquiring a cell identifier of a current different system in system information of a new cell; judging whether the cell identification of the current different system is in all the cell identifications managed by the stored mobile switching center; if all the cell identifications governed by the mobile switching center do not have the cell identification of the current different system, the multimode single card sends a re-joint attachment instruction to a mobile management entity; and the mobile management entity executes the re-joint attachment according to the re-joint attachment instruction of the multi-mode single card. When the multi-mode single card has an incoming call, the mobile switching center does not need to carry out a position updating process, and the call establishment time is shortened.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a multi-mode single-card combined attachment method and device.
Background
The multimode single-card mobile terminal is characterized in that the mobile terminal only has one USIM card slot, a USIM card of an operator is installed, and various network communication mode services such as 2G (GSM), 3G (CDMA/WCDMA/TD-SCDMA), 4G (TD-LTE/FDD-LTE) and the like are provided. Since coverage of each mobile communication network, especially a newly built 4G mobile communication network, is not complete, ubiquitous access cannot be supported. Therefore, there is a need for providing continuous services to mobile users through interaction between different mobile communication networks.
When the 4G multi-mode single card is used, a CSFB (Circuit Switched Fallback) technology is selected to realize voice call. Specifically, the 4G multimode single-card combined TA/LA (Tracking Area/location Area) update procedure is that the terminal finds that a current TAI (Tracking Area Identity) is not in a TA List (Tracking Area List) of the terminal registration network, and needs to initiate a TAU (Tracking Area update) procedure, and the terminal sends a TAU request message to an MME (Mobility Management Entity), where the update type indicates that it is a combined Tracking.
An Area/Location Area Update (Area/Location Area Update) request, MME judges that it is necessary to initiate TAU Location Update to VLR (Visitor Location Register), MSC (Mobile Switching Center)/VLR initiates Location Update to HLR (Home Location Register) according to the subscriber information and Location Area information in VLR. However, in the LTE (Long Term Evolution) network construction process, there may be a case where the coverage areas of the TAI and the LAI (Location Area Identity) are not completely consistent, and particularly, when the TAI spans two MSC coverage areas, there exists a case where the LAI changes and is connected to a different MSC, but the TAI does not change, and at this time, a joint Location update procedure cannot be triggered, so that the LAU procedure cannot be performed. Therefore, when the 4G multimode single card has an incoming call, the call first falls back to the 3G/2G network, the 4G multimode single card resides in the 3G/2G cell, and the MSC requires the 4G multimode single card to perform a location updating process because the MSC changes, so that the call setup time is prolonged.
Disclosure of Invention
Therefore, the invention provides a multi-mode single-card combined attachment method and a multi-mode single-card combined attachment device, which are used for solving the problem that in the prior art, the multi-mode single card cannot update the position in a home location register in time, so that the calling time of the multi-mode single card is longer.
In order to achieve the above object, a first aspect of the present invention provides a multi-mode single-card combined attachment method, including:
when the multi-mode single card reselects a cell, acquiring a cell identifier of a current different system in system information of a new cell;
judging whether the cell identification of the current different system is in all the cell identifications managed by the stored mobile switching center;
if all the cell identifications governed by the mobile switching center do not have the cell identification of the current different system, the multimode single card sends a re-joint attachment instruction to a mobile management entity;
and the mobile management entity executes the re-joint attachment according to the re-joint attachment instruction of the multi-mode single card.
Wherein, before the cell reselection step, the multimode single card comprises:
the mobile management entity receives a joint attachment request from the multimode single card;
the mobility management entity sends the joint attachment request to a mobile switching center;
the mobile management entity receives all cell identification information returned by the mobile switching center;
the mobile management entity sends all cell identification information governed by the mobile switching center to the multimode single card;
and the multimode single card stores the identification information of all cells managed by the current mobile switching center.
After the mobility management entity sends the joint attach request to a mobile switching center, the method further includes:
the mobile switching center receives a joint attachment request from the mobile management entity and transmits the joint attachment request to a first visitor location register;
the first visitor location register associates the multi-mode single card with the mobility management entity;
the first visitor location register initiates a location updating instruction to a home location register according to the user information and the location information of the multimode single card;
and the first visitor location register receives the confirmation updating information returned by the home location register and sends the confirmation updating information to the mobile management entity.
Wherein, the performing, by the mobility management entity, the re-association attachment according to the re-association attachment instruction of the multi-mode single card includes:
the mobile management entity inquires a corresponding location area identification code according to the cell identification of the current different system to obtain a mobile switching center corresponding to the cell identification of the current different system;
the mobile switching center obtains a second visitor location register according to the managed location area information;
the mobile management entity sends a location updating request to the second visitor location register;
the second visitor location register associates the multi-mode single card with the mobility management entity;
the second visitor location register sends a location updating request to the home location register according to the user information and the location area information;
the home location register performs a re-association attachment location update.
Wherein, after the home location register performs the reattachment location update, further comprising:
the home location register sends a deletion of the association between the multimode single card and a mobile management entity to the first visitor location register;
and the home location register receives return confirmation information after the first visitor location register deletes the association between the multimode single card and the mobile management entity.
A second aspect of the present invention provides a multi-mode single-card combination attachment apparatus, including:
the acquiring unit is used for acquiring the cell identification of the current different system from the system information of the new cell when the multi-mode single-card cell is reselected;
a judging unit, configured to judge whether the cell identifier of the current different system is in all cell identifiers managed by a stored mobile switching center;
a multimode single card sending unit, configured to send a re-association attach instruction to a mobility management entity when the multimode single card does not have the cell identifier of the current inter-system in all cell identifiers governed by the mobile switching center;
and the joint attachment unit is used for executing the re-joint attachment by the mobile management entity according to the re-joint attachment instruction of the multi-mode single card.
Wherein, still include setting up in the management entity side of said movement:
a first mobility management entity receiving unit, configured to receive, by the mobility management entity, a joint attach request from the multimode single card;
a first mobility management entity sending unit, configured to send a joint attach request to a mobile switching center by the mobility management entity;
a second mobility management entity receiving unit, configured to receive all cell identification information belonging to the cell returned by the mobile switching center by the mobility management entity;
and the second mobile management entity sending unit is used for sending all cell identification information governed by the mobile switching center to the multimode single card by the mobile management entity.
Wherein, still include setting up in the mobile switching center side:
a first mobile switching center receiving unit, configured to receive a joint attachment request by the mobile switching center;
a first mobile switching center sending unit, configured to transmit the joint attachment request to a first visitor location register;
the visitor location register is used for associating the multimode single card with the mobile management entity;
the home location register is used for receiving the user information and the location information of the multimode single card sent by the first visitor location register and updating the location according to the user information and the location information of the multimode single card;
a second mobile switching center receiving unit, configured to receive the confirmation update message of the home location register;
and the second mobile switching center sending unit is used for sending the confirmation updating message of the home location register to the mobile switching center.
Wherein the joint attachment unit comprises:
the mobile management entity is used for inquiring the corresponding location area identification code according to the cell identification of the current different system so as to obtain a mobile switching center corresponding to the cell identification of the current different system;
the acquisition module is used for the mobile switching center to acquire a second visitor location register according to the managed location area information;
the first mobility management entity sending unit is further configured to send a location update request to the second visitor location register by the mobility management entity;
the association module is used for the second visitor location register to associate the multi-mode single card with the mobile management entity;
and the re-joint attachment module is used for the home location register to execute re-joint attachment location updating, and the home location register is obtained by the second visitor location register according to the user information and the location area information when the home location register is attached.
Wherein the joint attachment unit comprises:
the first visitor location register receiving module is used for receiving the information which is sent by the home location register and used for deleting the association between the multimode single card and the mobile management entity;
the deleting module is used for deleting the association between the multimode single card and the mobile management entity;
and the first visitor location register sending module is used for sending the return confirmation information after the association between the multimode single card and the mobile management entity is deleted to the home location register.
The invention has the following advantages:
the invention provides a multimode single card joint attachment method, when a multimode single card reselects a cell, a cell identifier of a current different system is obtained in new cell system information, then whether the cell identifier of the current different system is in all cell identifiers managed by a saved mobile switching center is judged, if the cell identifiers managed by the mobile switching center do not have the cell identifier of the current different system, the multimode single card sends a re-joint attachment instruction to a mobile management entity; the mobile management entity executes the re-joint attachment according to the re-joint attachment instruction of the multi-mode single card, so that when the multi-mode single card has an incoming call, the multi-mode single card falls back to the 3G/2G network and is accessed to a 3G/2G network cell, a mobile switching center does not need to perform a position updating process, and the call establishment time is shortened.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a flowchart of a multi-mode single-card combined attachment method according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a multi-mode single-card combination attachment apparatus according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of a multi-mode single-card combination attachment apparatus at a mobility management entity according to an embodiment of the present invention;
fig. 4 is a schematic block diagram of a multi-mode single-card combination attachment apparatus at a mobile switching center according to an embodiment of the present invention.
In the drawings:
1: the acquisition unit 2: judging unit
3: multimode single-card transmitting unit 4: joint attachment unit
51: the first mobility management entity receiving unit 52: first mobility management entity sending unit
53: the second mobility management entity receiving unit 54: second mobility management entity transmitting unit
61: the first mobile switching center receiving unit 62: first mobile switching center transmitting unit
63: visitor location register 64: home location register
65: second mobile switching center receiving unit 66: second mobile switching center transmitting unit
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The invention provides a multi-mode single-card combined attachment method which is not only suitable for a 4G multi-mode single card, but also suitable for a 5G multi-mode single card. In this embodiment, a 4G multimode single card is taken as an example for introduction, and a voice call is implemented by a CSFB (Circuit Switched Fallback) technology.
As shown in fig. 1, the multi-mode single-card joint attachment method provided in this embodiment includes:
step S1, when the multimode single card reselects a cell, the multimode single card obtains a cell identifier of the current inter-system in the system information of the new cell.
Before cell reestablishment, the 4G multimode single card is first attached to a 4G network, and stores all cell identification information governed by a current Mobile Switching Center (MSC).
Specifically, after the 4G multimode single-card mobile terminal is started, the 4G multimode single card sends an attach request to the MME. In the attach request, the parameter attach type indicates that the attach request is a joint EPS (Evolved Packet System)/IMSI (International Mobile Subscriber identity) attach procedure, and the parameter indicates that the ue has circuit switched fallback capability.
The MME receives a joint attach request from a multimode single card, and then sends the joint attach request to a VLR1 (first visitor location register) of an MSC (mobile switching center), where the joint attach request includes parameters such as a new Location Area Identity (LAI), an IMSI, a name of the MME, and a location update type.
After receiving the joint attachment request of the MME, the MSC transmits the joint attachment request to the VLR1, and the VLR1 firstly stores the MME information and associates the multimode single card with the MME; the VLR1 sends a location updating instruction to the HLR according to the user information and the location information of the multimode single card, the HLR sends return information for confirming that updating is completed to the VLR1 after the HLR completes location updating, the VLR1 receives the confirmation updating information returned by the HLR and sends the confirmation updating information to the MME, meanwhile, the MSC sends all cell identification information governed by the MSC to the MME, the MME receives the confirmation updating information returned by the MSC, finally, the MME sends the confirmation updating information to the 4G multimode single card, and the 4G multimode single card stores all cell identification information governed by the current MSC, so that the 4G multimode single card and the 4G network complete joint attachment.
When the 4G multimode single card is attached to a 4G network, a cell identifier of a current different system (3G/2G) is obtained through cell system information, then the 4G multimode single card sends an information request for obtaining all cell identifiers under the jurisdiction of a current MSC to an MME, the MME forwards the request information to the MSC, the MSC sends all cell identifier information under the jurisdiction to the MME, the MME forwards all cell identifier information under the jurisdiction to the 4G multimode single card, and the 4G multimode single card stores all cell identifier information under the jurisdiction of the current MSC.
And when the 4G multimode single card and the 4G network finish joint attachment and all cell identification information governed by the MSC is obtained through the MME, the 4G multimode single card can communicate with other terminals. In the using process, when the 4G multimode single card moves and needs to perform cell reselection, the cell identification information of the current different system is acquired from the new cell system information.
Step S2, determine whether the cell id of the current inter-system is in all the cell ids managed by the stored mobile switching center.
Specifically, the 4G multimode single card queries whether there is cell identification information of the current inter-system from all cell identification information governed by the MSC already stored therein.
Step S3, if there is no cell ID of the current different system in all cell IDs governed by the MSC, the 4G multimode single card sends a re-joint attachment instruction to the MME.
If all cell identifiers governed by the MSC do not have the cell identifier of the current different system, the 4G multimode single card judges that the MSC is changed, and therefore the 4G multimode single card sends a re-joint attachment instruction to the MME.
In step S4, the MME performs re-association attachment according to the re-association attachment instruction of the 4G multimode single card.
Specifically, the 4G multimode single card sends a re-association attach message to the MME, where the re-association attach message indicates that the request is a re-association attach request, and the re-association attach request includes parameters such as inter-system cell identity and IMSI.
And the MME inquires the corresponding LAI according to the cell identifier of the current different system to obtain the MSC corresponding to the cell identifier of the current different system.
The MSC obtains a second visitor location register VLR2 according to the governed location area information.
The MME sends a location update request to the second visitor location register VLR 2.
The second visitor location register VLR2 stores the MME information and associates the 4G multimode single card with the MME, and then sends a location update request to the HLR according to the user information and the location area information.
The HLR performs a re-association attachment location update.
As an implementation manner of this embodiment, after the HLR performs the re-association location update, the multimode single-card association attachment method further includes:
HLR sends the association of deleting the 4G multimode single card and MME to a first visitor location register VLR 1; the first visitor location register VLR1 deletes the association between the 4G multimode single card and the MME, and since the 4G multimode single card and the MME are newly associated by the second visitor location register VLR2, the association between the 4G multimode single card and the MME established by the first visitor location register VLR1 needs to be deleted. And after deleting the association between the 4G multimode single card and the MME, the first visitor location register VLR1 returns deletion confirmation information to the HLR.
And the HLR receives the returned confirmation information after the first VLR1 deletes the association between the multimode single card and the MME, and sends the returned information after the position updating is finished to the MME.
And after finishing the re-joint attachment, the MME sends an attachment receiving message to the 4G multimode single-card mobile terminal.
In the multi-mode single-card joint attachment method provided by this embodiment, when a multi-mode single card reselects a cell, a cell identifier of a current different system is obtained in new cell system information, and then it is determined whether the cell identifier of the current different system is in all cell identifiers governed by a stored mobile switching center, and if there is no cell identifier of the current different system in all cell identifiers governed by the mobile switching center, the multi-mode single card sends a re-joint attachment instruction to a mobile management entity; the mobile management entity executes the re-joint attachment according to the re-joint attachment instruction of the multi-mode single card, so that when the multi-mode single card has an incoming call, the multi-mode single card falls back to the 3G/2G network and is accessed to the 3G/2G network cell, and the mobile switching center does not need to perform a position updating process, thereby shortening the call establishment time.
The embodiment also provides a multi-mode single-card combined attachment device. As shown in fig. 2, the multi-mode single-card combination attachment apparatus includes:
the acquiring unit 1 is configured to acquire a cell identifier of a current different system from system information of a new cell when a 4G multimode single-card cell is reselected.
And the judging unit 2 is configured to judge whether the cell identifier of the current different system is in all the cell identifiers governed by the stored MSC.
And a multimode single card sending unit 3, configured to send a re-association attach instruction to the MME when the 4G multimode single card has no cell identifier of the current inter-system in all cell identifiers governed by the MSC.
And the joint attachment unit 4 is used for the MME to execute the re-joint attachment according to the re-joint attachment instruction of the 4G multimode single card.
As an optional implementation manner of this embodiment, as shown in fig. 3, the multimode single-card combination attachment apparatus includes a first mobility management entity receiving unit 51, a first mobility management entity sending unit 52, a second mobility management entity receiving unit 53 and a second mobility management entity sending unit 54, which are disposed at the side of the mobility management entity, wherein,
a first mobility management entity receiving unit 51, configured to receive a joint attach request from a multimode single card by a mobility management entity;
a first mobility management entity sending unit 52, configured to send the joint attach request to the mobile switching center by the mobility management entity;
a second mobility management entity receiving unit 53, configured to receive all cell identification information belonging to the cell returned from the mobile switching center by the mobility management entity;
a second mobility management entity sending unit 54, configured to send all cell identification information governed by the mobile switching center to the multimode single card by the mobility management entity.
As shown in fig. 4, the multimode single card combination attachment apparatus further comprises a first mobile switching center receiving unit 61, a first mobile switching center transmitting unit 62, a visitor location register 63, a home location register 64, a second mobile switching center receiving unit 65 and a second mobile switching center transmitting unit 66 arranged at the mobile switching center side, wherein,
a first mobile switching center receiving unit 61, configured to receive a joint attach request by the MSC;
a first mobile switching center sending unit 62, configured to transmit the joint attach request to VLR 1;
the visitor location register 63 is used for associating the 4G multimode single card with the MME;
the home location register 64 is configured to receive the user information and the location information of the 4G multimode single card sent by the VLR1, and perform location update according to the user information and the location information of the 4G multimode single card;
a second mobile switching center receiving unit 65 for receiving the confirmation update message of the home location register;
a second mobile switching center sending unit 66, configured to send the confirmation update message of the home location register to the mobile switching center.
In this embodiment, the joint attachment unit includes an inquiry module, an acquisition module, an association module, a re-joint attachment module, a first visitor location register receiving module, a deletion module, and a first visitor location register sending module, wherein,
the inquiry module is used for the mobile management entity to inquire the corresponding position area identification code according to the cell identification of the current different system so as to obtain the mobile switching center corresponding to the cell identification of the current different system;
the acquisition module is used for the mobile switching center to acquire a second visitor location register according to the managed location area information;
the first mobile management entity sending unit is also used for the mobile management entity to send the location updating request to the second visitor location register;
the association module is used for the second visitor location register to associate the multimode single card with the mobile management entity;
and the re-joint attachment module is used for the home location register to execute re-joint attachment location updating, and the home location register is obtained by the second visitor location register according to the user information and the location area information when the home location register is attached.
The first visitor location register receiving module is used for receiving information which is sent by a home location register and used for deleting the association between the multimode single card and the mobile management entity;
the deleting module is used for deleting the association between the multimode single card and the mobile management entity;
the first visitor location register sending module is used for sending the return confirmation information after the association between the multimode single card and the mobile management entity is deleted to the home location register.
In the multi-mode single-card combined attachment apparatus provided in this embodiment, when a multi-mode single card reselects a cell, a cell identifier of a current different system is obtained in new cell system information, and then it is determined whether the cell identifier of the current different system is in all cell identifiers governed by a stored mobile switching center, and if there is no cell identifier of the current different system in all cell identifiers governed by the mobile switching center, the multi-mode single card sends a re-combined attachment instruction to a mobile management entity; the mobile management entity executes the re-joint attachment according to the re-joint attachment instruction of the multi-mode single card, so that when the multi-mode single card has an incoming call, the multi-mode single card falls back to the 3G/2G network and is accessed to the 3G/2G network cell, and the mobile switching center does not need to perform a position updating process, thereby shortening the call establishment time.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (8)
1. A multi-mode single-card joint attachment method is characterized by comprising the following steps:
when the multi-mode single card reselects a cell, acquiring a cell identifier of a current different system in system information of a new cell;
judging whether the cell identification of the current different system is in all the cell identifications managed by the stored mobile switching center;
if all the cell identifications governed by the mobile switching center do not have the cell identification of the current different system, the multimode single card sends a re-joint attachment instruction to a mobile management entity;
the mobile management entity executes the re-joint attachment according to the re-joint attachment instruction of the multi-mode single card;
the multimode single card comprises the following steps before the cell reselection step:
the mobile management entity receives a joint attachment request from the multimode single card;
the mobility management entity sends the joint attachment request to a mobile switching center;
the mobile management entity receives all cell identification information returned by the mobile switching center;
the mobile management entity sends all cell identification information governed by the mobile switching center to the multimode single card;
and the multimode single card stores the identification information of all cells managed by the current mobile switching center.
2. The method of claim 1, wherein after the mobility management entity sends the joint attach request to a mobile switching center, the method further comprises:
the mobile switching center receives a joint attachment request from the mobile management entity and transmits the joint attachment request to a first visitor location register;
the first visitor location register associates the multi-mode single card with the mobility management entity;
the first visitor location register initiates a location updating instruction to a home location register according to the user information and the location information of the multimode single card;
and the first visitor location register receives the confirmation updating information returned by the home location register and sends the confirmation updating information to the mobile management entity.
3. The method of claim 2, wherein the performing, by the mobility management entity, the re-association attachment according to the re-association attachment instruction of the multi-mode single card comprises:
the mobile management entity inquires a corresponding location area identification code according to the cell identification of the current different system to obtain a mobile switching center corresponding to the cell identification of the current different system;
the mobile switching center obtains a second visitor location register according to the managed location area information;
the mobile management entity sends a location updating request to the second visitor location register;
the second visitor location register associates the multi-mode single card with the mobility management entity;
the second visitor location register sends a location updating request to the home location register according to the user information and the location area information;
the home location register performs a re-association attachment location update.
4. The method of claim 3, wherein after the home location register performs the reattach location update, further comprising:
the home location register sends a deletion of the association between the multimode single card and a mobile management entity to the first visitor location register;
and the home location register receives return confirmation information after the first visitor location register deletes the association between the multimode single card and the mobile management entity.
5. A multi-mode single-card combination attachment apparatus, comprising:
the acquiring unit is used for acquiring the cell identification of the current different system from the system information of the new cell when the multi-mode single-card cell is reselected;
a judging unit, configured to judge whether the cell identifier of the current different system is in all cell identifiers managed by a stored mobile switching center;
a multimode single card sending unit, configured to send a re-association attach instruction to a mobility management entity when the multimode single card does not have the cell identifier of the current inter-system in all cell identifiers governed by the mobile switching center;
the joint attachment unit is used for the mobile management entity to execute the re-joint attachment according to the re-joint attachment instruction of the multi-mode single card;
the multi-mode single-card combined attachment device further comprises a mobile management entity side, wherein the mobile management entity side comprises:
a first mobility management entity receiving unit, configured to receive, by the mobility management entity, a joint attach request from the multimode single card;
a first mobility management entity sending unit, configured to send a joint attach request to a mobile switching center by the mobility management entity;
a second mobility management entity receiving unit, configured to receive all cell identification information belonging to the cell returned by the mobile switching center by the mobility management entity;
and the second mobile management entity sending unit is used for sending all cell identification information governed by the mobile switching center to the multimode single card by the mobile management entity.
6. The apparatus of claim 5, further comprising, at the mobile switching center side:
a first mobile switching center receiving unit, configured to receive a joint attachment request by the mobile switching center;
a first mobile switching center sending unit, configured to transmit the joint attachment request to a first visitor location register;
the visitor location register is used for associating the multimode single card with the mobile management entity;
the home location register is used for receiving the user information and the location information of the multimode single card sent by the first visitor location register and updating the location according to the user information and the location information of the multimode single card;
a second mobile switching center receiving unit, configured to receive the confirmation update message of the home location register;
and the second mobile switching center sending unit is used for sending the confirmation updating message of the home location register to the mobile switching center.
7. The apparatus of claim 6, wherein the joint attachment unit comprises:
the mobile management entity is used for inquiring the corresponding location area identification code according to the cell identification of the current different system so as to obtain a mobile switching center corresponding to the cell identification of the current different system;
the acquisition module is used for the mobile switching center to acquire a second visitor location register according to the managed location area information;
the first mobility management entity sending unit is further configured to send a location update request to the second visitor location register by the mobility management entity;
the association module is used for the second visitor location register to associate the multi-mode single card with the mobile management entity;
and the re-joint attachment module is used for the home location register to execute re-joint attachment location updating, and the home location register is obtained by the second visitor location register according to the user information and the location area information when the home location register is attached.
8. The apparatus of claim 7, wherein the joint attachment unit comprises:
the first visitor location register receiving module is used for receiving the information which is sent by the home location register and used for deleting the association between the multimode single card and the mobile management entity;
the deleting module is used for deleting the association between the multimode single card and the mobile management entity;
and the first visitor location register sending module is used for sending the return confirmation information after the association between the multimode single card and the mobile management entity is deleted to the home location register.
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