CN110167087B - Method and system for directional paging of mobile terminal - Google Patents

Method and system for directional paging of mobile terminal Download PDF

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Publication number
CN110167087B
CN110167087B CN201910448611.5A CN201910448611A CN110167087B CN 110167087 B CN110167087 B CN 110167087B CN 201910448611 A CN201910448611 A CN 201910448611A CN 110167087 B CN110167087 B CN 110167087B
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card
mobile terminal
msc
association
cards
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CN110167087A (en
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张余
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • 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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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a method for directional paging of a mobile terminal, wherein the mobile terminal is provided with at least one 3G/2G card and at least one 4G card, the method comprises the steps that the mobile terminal acquires an identification message, an MSC (mobile switching center) establishes a first association according to the identification message, when the 3G/2G card is connected with a network, a cell identification of the 4G card is acquired and sent to the MSC, the MSC establishes a second association, when the 4G card is paged by an incoming call, the MSC sends the cell identification of the 4G card to an MME (mobility management entity) to which the 4G card belongs according to the second association, and the MME sends a paging request to the 4G card according to the specific cell identification of the 4G card. Correspondingly, a system for directional paging of the mobile terminal is also disclosed. The method and the system can realize directional paging, thereby solving the problem that resources are wasted due to large paging range when the MME pages all cells of the TAI of the 4G card in an idle state.

Description

Method and system for directional paging of mobile terminal
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and a system for directional paging of a mobile terminal.
Background
Currently, dual card dual standby mobile terminals are a relatively popular configuration. With the increasing demands of users in work and life, multi-card multi-standby mobile terminals are available. Specifically, more than two user cards can be simultaneously inserted into one mobile terminal, and the user cards can be in a standby state at the same time.
However, when the mobile terminal has at least one 3G/2G card and at least one 4G card, and when the 4G card is attached to an LTE (Long Term Evolution) network and is in an idle state, the MME (Mobility Management Entity) only knows TAI (Tracking Area identity) information of the 4G card, and since the TAI includes a plurality of cells, the MME does not know a specific cell identity of the 4G card. When there is an incoming call paging 4G card, the MME needs to page all cells of the TAI of the 4G card, the paging range is large, the load of the eNodeB (Evolved Node B) and the radio interface is increased, and resources are wasted.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method and a system for directional paging of a mobile terminal, which are used to solve the problem in the prior art that when a 4G card is in an idle state and an incoming call pages the 4G card, an MME needs to page all cells of a TAI of the 4G card, and the paging range is large, so as to avoid increasing loads of an eNodeB and a radio interface and wasting resources.
In order to solve the above technical problem, the present invention provides a method for directional paging of a mobile terminal, wherein the mobile terminal has at least one 3G/2G card and at least one 4G card, the method comprises the following steps:
the mobile terminal acquires and sends the identification message to the MSC, wherein the identification message comprises: the number of all cards in the mobile terminal and the IMSI of all cards;
the MSC creates a first association, wherein the first association is the association of IMSIs of all cards in the mobile terminal;
when the 3G/2G card is connected with a network, acquiring a cell identifier of the 4G card and sending the cell identifier to the MSC;
the MSC creates a second association, wherein the second association is the association between the IMSI of the 4G card and the cell identifier of the 4G card;
when a 4G card is paged by an incoming call, after receiving a paging request, the MSC sends the cell identifier of the 4G card to an MME to which the 4G card belongs according to the second association;
and the MME sends a paging request to the 4G card according to the cell identifier of the 4G card.
Preferably, the mobile terminal acquiring the identifier message specifically includes:
establishing communication among all cards of the mobile terminal, and acquiring identification information through the communication among all the cards; or,
detecting the number of all cards in the mobile terminal and the IMSIs of all the cards to acquire an identification message;
and the mobile terminal sends the identification message to the MSC through the 3G/2G card.
Preferably, the trigger condition for the 3G/2G card to send the identification message to the MSC is:
when the 3G/2G card is attached to the network.
Preferably, the MSC specifically includes:
the MSC associates the IMSIs of all the cards in the mobile terminal according to the identification message to form a first association;
when the 3G/2G card connects to the network, acquiring the cell identifier of the 4G card specifically includes: when the 3G/2G card is connected with the network, the cell identification of the 4G card is obtained by sending a query request to the 4G card.
Preferably, when the 4G card performs cell reselection, the method further includes:
sending the cell identifier of the 4G card after cell reselection to the 3G/2G card through the 4G card;
sending the cell identification of the reselected 4G card to the MSC through the 3G/2G card;
the MSC associates the IMSI of the 4G card with the reselected cell identifier of the 4G card so as to establish a new second association and replace the original second association;
when the 3G/2G card releases the connection, the method also comprises the following steps:
and informing the MSC to delete the second association through the 3G/2G card.
Further, the present invention also provides a system for directional paging of a mobile terminal, which comprises the mobile terminal, wherein the mobile terminal has at least one 3G/2G card and at least one 4G card, and the system further comprises: the MSC and the MME to which the 4G card belongs,
the mobile terminal is used for acquiring an identification message and sending the identification message to the MSC, wherein the identification message comprises: the number of all cards in the mobile terminal and the IMSI of all cards;
the MSC is used for creating a first association, wherein the first association is the association of IMSIs of all cards in the mobile terminal;
the mobile terminal is also used for acquiring the cell identification of the 4G card when the 3G/2G card is connected with the network, and sending the cell identification of the 4G card to the MSC;
the MSC is also used for creating a second association, wherein the second association is the association between the IMSI of the 4G card and the cell identifier of the 4G card;
when there is incoming call paging 4G card, MSC is also used for receiving paging request, and cell ID of 4G card is sent to MME;
and the MME is used for sending a paging request to the 4G card according to the cell identifier of the 4G card.
Preferably, the mobile terminal includes:
the communication module is used for establishing communication among all cards of the mobile terminal, so that the 3G/2G cards acquire the identification information through the communication among all the cards of the mobile terminal; or,
the mobile terminal includes:
and the detection module is used for detecting the number of all cards in the mobile terminal and the IMSIs of all the cards so as to acquire the identification information.
Preferably, the MSC includes a creation module,
the creating module is used for associating the IMSIs of all the cards in the mobile terminal according to the identification message to form a first association;
the communication module/the detection module is further used for instructing the 3G/2G card to send an identification message to the creation module according to the message that the 3G/2G card is attached to the network.
The mobile terminal is further configured to obtain the cell identifier of the 4G card when the 3G/2G card connects to the network, specifically:
the communication module/detection module of the mobile terminal is further used for indicating the 3G/2G card to send a query request to the 4G card according to the message that the 3G/2G card is connected with the network so as to acquire the cell identifier of the 4G card.
Preferably, the communication module/detection module of the mobile terminal is further configured to instruct the 4G card to send the cell identifier of the 4G card after cell reselection to the 3G/2G card according to a message for cell reselection by the 4G card; and the cell identifier is used for indicating the 3G/2G card to send the reselected 4G card to the MSC;
the creating module of the MSC is also used for associating the IMSI of the 4G card with the reselected cell identifier of the 4G card so as to establish a new second association and replace the original second association;
when the 3G/2G card releases the connection, the communication module/detection module of the mobile terminal is further used for indicating the 3G/2G card to inform the MSC to delete the second association according to the message that the 3G/2G card releases the connection.
The beneficial technical effects of the invention are as follows: in the method and system for directional paging of a mobile terminal in the invention, since the MSC creates the first association according to the identification message, wherein the identification message comprises: the number of all cards in the mobile terminal and the IMSI of all cards, wherein the first association is the association of the IMSI of all cards in the mobile terminal; when the 3G/2G card is connected with a network, acquiring the cell identifier of the 4G card, sending the cell identifier to the MSC, and then establishing a second association by the MSC, wherein the second association is the association between the IMSI of the 4G card and the cell identifier of the 4G card; when there is an incoming call paging 4G card, if the 4G card is in an idle state, the MSC receives the paging request and then sends the cell identifier of the 4G card to the MME to which the 4G card belongs according to the second association, so that the MME to which the 4G card belongs sends the paging request to the corresponding cell through the eNodeB, thereby achieving the effect of directional paging and avoiding the problem that the MME pages all cells of TAI of the idle 4G card, which wastes resources due to a large paging range.
Drawings
Fig. 1 is a flowchart of a method for directional paging of a mobile terminal according to embodiment 1 of the present invention;
fig. 2 is a flowchart of a method for directional paging of a mobile terminal according to embodiment 2 of the present invention;
fig. 3 is a schematic structural diagram of a system for directional paging of a mobile terminal according to embodiment 4 of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following describes the method and system for directional paging of a mobile terminal in detail with reference to the accompanying drawings and embodiments.
Example 1:
as shown in fig. 1, this embodiment provides a method for directional paging of a mobile terminal, where the mobile terminal is a multi-card multi-standby mobile terminal and has at least one 3G/2G card and at least one 4G card, and the method includes:
the mobile terminal acquires an identification message and sends the identification message to the MSC, wherein the identification message comprises: the number of all cards in the mobile terminal and the IMSI of all cards;
the MSC creates a first association according to the identification message, wherein the first association is the association of IMSIs of all cards in the mobile terminal;
when the 3G/2G card is connected with a network, acquiring a cell identifier of the 4G card and sending the cell identifier to the MSC;
the MSC creates a second association, wherein the second association is the association between the IMSI of the 4G card and the cell identifier of the 4G card;
when a 4G card is paged by an incoming call, after receiving a paging request, the MSC sends the cell identifier of the 4G card to an MME to which the 4G card belongs according to the second association;
and the MME sends a paging request to the 4G card according to the cell identifier of the 4G card.
Example 2:
as shown in fig. 1 and 2, this embodiment discloses a method for directional paging of a mobile terminal, where the mobile terminal is a dual-card dual-standby mobile terminal, the mobile terminal has a 3G/2G card and a 4G multimode card, the 4G multimode card selects a CSFB technology to implement voice call, and the 4G multimode card and the 3G/2G card belong to the same network operator, and since the existing 4G cards are both multimode cards, the 4G multimode card is hereinafter referred to as the 4G card for short.
The method comprises the following steps:
step 101, after the mobile terminal is started, starting a combined attachment process of a 4G card;
the joint attachment process is specifically that the 4G card of the mobile terminal sends an Attach Request message to the MME, wherein the parameter Attach Type indicates that the mobile terminal is a joint EPS/IMSI attachment process, and the parameter indicates that the mobile terminal has CS Fallback capability, the MME sends an SGsAP-LOCATION-UPDATE-Request message to a corresponding VLR, the message comprises parameters such as new LAI, IMSI, MME name, and LOCATION UPDATE Type of the 4G card, the VLR stores MME information and creates SGs association with the 4G card under the MME, the VLR initiates a 4G card LOCATION UPDATE process to the HLR according to user information and LOCATION area information, the VLR returns confirmation information to the MME, and the MME sends an Attach Accept message to the mobile terminal to complete joint attachment.
Step 102, starting a 3G/2G card network attachment process;
step 103, the mobile terminal obtains an identification message and sends the identification message to the MSC, wherein the identification message includes: the number of all cards in the mobile terminal and the IMSI of all cards;
the mobile terminal may specifically obtain the identification message in two ways: one is to establish communication between all cards of the mobile terminal and acquire the identification message through the communication between all cards.
In the embodiment, the mobile terminal can establish communication between the 3G/2G card and the 4G card, and the 3G/2G card directly acquires the identification message through the communication with the 4G card.
The other is to detect the number of all cards in the mobile terminal and the IMSI of all cards to obtain the identification message.
In this embodiment, the number of all cards (two cards) in the mobile terminal, the IMSI of the 3G/2G card, and the IMSI of the 4G card are detected by the mobile terminal and sent to the 3G/2G card, or the identification message acquired by the mobile terminal may be read by the 3G/2G card.
After obtaining the identification message, the mobile terminal sends the identification message to the MSC through the 3G/2G card. The trigger condition for the 3G/2G card to send the identification message to the MSC is as follows: when the 3G/2G card is attached to the network.
In this embodiment, the mobile terminal may specifically send the identification message to the MSC through the 3G/2G card in two ways, one of which is that the mobile terminal instructs the 3G/2G card to send the identification message to the MSC according to a message that the 3G/2G card is already attached to the network.
The other is that after the 3G/2G card is attached to the network, the 3G/2G card actively sends an identification message to the MSC.
Step 104, the MSC creates a first association, wherein the first association is the association of IMSIs of all cards in the mobile terminal;
specifically, the MSC associates the IMSI of the 3G/2G card and the IMSI of the 4G card in the mobile terminal according to the identification message to form a first association.
105, when the 3G/2G card is connected with a network, acquiring a cell identifier of the 4G card and sending the cell identifier to the MSC;
in this embodiment, there are two specific ways to obtain the cell identifier of the 4G card, one is that the mobile terminal instructs the 3G/2G card to send a query request to the 4G card according to a message that the 3G/2G card has connected to the network, and instructs the 4G card to return the identifier of the current cell to the 3G/2G card.
The other is that when the 3G/2G card is connected with the network, the 3G/2G card actively sends a request for inquiring the cell identifier to the 4G card, and the 4G card actively returns the identifier of the current cell to the 3G/2G card.
Step 106, the MSC creates a second association, wherein the second association is the association between the IMSI of the 4G card and the cell identifier of the 4G card;
step 107, when there is an incoming call to page the 4G card, the MSC receives the paging request and sends the cell identifier of the 4G card to the MME to which the 4G card belongs according to the second association;
in this embodiment, step 107 specifically includes that, when there is an incoming call paging 4G card, the HLR provides the MSC location information to the calling switch, the calling switch sends the call request to the MSC, the MSC obtains IMSI information of the 4G card in the call request, and sends the paging request to the MME according to SGs association of the 4G card, and the MSC sends the cell identifier of the 4G card to the MME according to the second association.
Step 108, the MME sends a paging request to the 4G card according to the cell identifier of the 4G card;
specifically, in this embodiment, the MME sends the paging request to the corresponding cell according to the cell identifier of the 4G card, and the 4G card receives the paging request;
and after receiving the paging request, the 4G card falls back to the 3G/2G network to establish the call.
When the mobile terminal moves to a different cell, the 4G card needs to perform cell reselection. When the 4G card performs cell reselection, the method further comprises the following steps:
step 109, sending the cell identifier of the 4G card after cell reselection to the 3G/2G card through the 4G card;
step 110, sending the cell identifier of the reselected 4G card to the MSC through the 3G/2G card:
step 111, the MSC associates the IMSI of the 4G card with the reselected cell identifier of the 4G card to establish a new second association and replace the original second association.
In this embodiment, there are also two different ways to obtain the cell identifier of the 4G card after cell reselection, one way is that the mobile terminal instructs the 4G card to send the cell identifier of the 4G card after cell reselection to the 3G/2G card according to the message of cell reselection performed by the 4G card; and instructing the 3G/2G card to send the cell identifier of the reselected 4G card to the MSC.
The 4G card actively sends the cell identifier of the 4G card after cell reselection to the 3G/2G card; and the 3G/2G card actively sends the cell identification of the reselected 4G card to the MSC according to the cell identification of the reselected 4G card sent by the 4G card.
When the 3G/2G card releases the connection, the method also comprises the following steps:
and step 112, informing the MSC of deleting the second association through the 3G/2G card.
In this embodiment, there are also two different ways for notifying the MSC to delete the second association through the 3G/2G card, one is that the mobile terminal instructs the 3G/2G card to notify the MSC to delete the second association according to a message that the 3G/2G card releases the connection.
And the other is that when the 3G/2G card releases the connection, the 3G/2G card actively informs the MSC to delete the second association.
The dual-card dual-standby mobile terminal in embodiment 2 is only for illustrating the method for directional paging of the mobile terminal, and the method in embodiment 2 may also adopt a multi-card multi-standby mobile terminal according to actual needs. In the method for directional paging of a mobile terminal provided in embodiment 1 and embodiment 2, the MSC creates a first association according to the identification message, where the first association is an association of IMSIs of all cards in the mobile terminal. When the 3G/2G card is connected with the network, the cell identifier of the 4G card is obtained and sent to the MSC, and the MSC creates a second association, wherein the second association is the association between the IMSI of the 4G card and the cell identifier of the 4G card. When there is an incoming call paging 4G card, after receiving the paging request, the MSC sends the cell identifier of the 4G card to the MME to which the 4G card belongs according to the second association, so that the MME to which the 4G card belongs sends the paging request to the corresponding cell through the eNodeB, thereby achieving the effect of directional paging. The problem that in the prior art, the MME needs to page all cells of TAI of the 4G card in an idle state, and resource waste is caused due to a large paging range is solved.
Example 3:
a system for directional paging of a mobile terminal comprises the mobile terminal, the mobile terminal is a multi-card multi-standby mobile terminal which is provided with at least one 3G/2G card and at least one 4G card, and the system also comprises: the MSC and the MME to which the 4G card belongs,
the mobile terminal is used for acquiring the identification message and sending the identification message to the MSC, wherein the identification message comprises: the number of all cards in the mobile terminal and the IMSI of all cards;
the MSC is used for establishing a first association according to the identification message, wherein the first association is the association of IMSIs of all cards in the mobile terminal;
the mobile terminal is also used for acquiring the cell identification of the 4G card when the 3G/2G card is connected with the network and sending the cell identification of the 4G card to the MSC;
the MSC is also used for creating a second association, wherein the second association is the association between the IMSI of the 4G card and the cell identifier of the 4G card;
when there is an incoming call to page the 4G card, the MSC is also used for receiving a paging request and sending the cell identifier of the 4G card to the MME;
and the MME is used for sending a paging request to the 4G card according to the cell identifier of the 4G card.
Example 4:
this embodiment discloses a system for directional paging of a mobile terminal, wherein the mobile terminal is a dual-card dual-standby mobile terminal, and the mobile terminal has a 3G/2G card and a 4G multi-mode card, as shown in fig. 3, the system includes: the mobile terminal, the MSC, the MME to which the 4G card belongs, the calling switch and the HLR. The 4G multi-mode card selects the CSFB technology to realize voice call, the 4G multi-mode card and the 3G/2G card belong to the same network operator, and the existing 4G card is a multi-mode card, so the 4G multi-mode card is referred to as the 4G card for short.
The mobile terminal is used for acquiring an identification message and sending the identification message to the MSC, wherein the identification message comprises: the number of all cards in the mobile terminal and the IMSI of all cards;
specifically, the mobile terminal comprises a communication module for establishing communication between all cards of the mobile terminal, and the 3G/2G card acquires the identification message through the communication between all cards of the mobile terminal.
In this embodiment, the communication module may establish communication between the 3G/2G card and the 4G card, and the 3G/2G card directly acquires the identification message through communication with the 4G card.
Or, the mobile terminal includes a detection module, configured to detect the number of all cards in the mobile terminal and the IMSI of all cards, to obtain the identification message, and send the identification message to the 3G/2G card.
In this embodiment, the number of all cards (two cards), the IMSI of the 3G/2G card, and the IMSI of the 4G card in the mobile terminal are detected by the detection module of the mobile terminal, and are sent to the 3G/2G card, or the identification message acquired by the mobile terminal may be read by the 3G/2G card.
The MSC is used for creating a first association, wherein the first association is the association of IMSIs of all cards in the mobile terminal;
in particular, the MSC comprises a creating module 11 for associating the IMSI of the 3G/2G card with the IMSI of the 4G card in the mobile terminal according to the identification message to form a first association.
In this embodiment, after the 3G/2G card is attached to the network, the communication module/detection module 12 of the mobile terminal is configured to instruct the 3G/2G card to send an identification message to the creating module 11 of the MSC according to the acquired message that the 3G/2G card is already attached to the network.
Of course, it is also possible that after the 3G/2G card is attached to the network, the 3G/2G card actively sends the identification message to the creating module 11 of the MSC.
The mobile terminal is also used for acquiring the cell identification of the 4G card when the 3G/2G card is connected with the network and sending the cell identification to the MSC;
in this embodiment, specifically, the communication module/detection module 12 of the mobile terminal instructs the 3G/2G card to send an inquiry request to the 4G card according to the acquired message that the 3G/2G card has connected to the network, so as to acquire the cell identifier of the 4G card.
Of course, when the 3G/2G card connects to the network, the 3G/2G card actively sends a request for inquiring the cell identifier to the 4G card, and the 4G card returns the identifier of the current cell to the 3G/2G card.
The MSC is also used for creating a second association, wherein the second association is the association between the IMSI of the 4G card and the cell identifier of the 4G card;
in particular, the MSC creates the second association by means of the creation module 11.
When there is an incoming call to page the 4G card, the MSC is also used for receiving the paging request and sending the cell identifier of the 4G card to the MME according to the second association;
in this embodiment, the incoming call paging 4G card is specifically that, when there is an incoming call paging 4G card, the HLR is configured to provide MSC location information to the calling switch, the calling switch is configured to send a call request to the MSC, the MSC is configured to obtain IMSI information of the 4G card in the call request, and is configured to send a paging request to the MME according to SGs association of the 4G card, and the MSC is further configured to send a cell identifier of the 4G card to the MME according to the second association.
And the MME is used for sending a paging request to the 4G card according to the cell identifier of the 4G card.
In this embodiment, the MME is configured to send a paging request to a corresponding cell according to a cell identifier of the 4G card, and after receiving the paging request, the 4G card falls back to the 3G/2G network to establish a call.
Preferably, when the 4G card performs cell reselection, the communication module/detection module of the mobile terminal is further configured to instruct the 4G card to send the cell identifier of the 4G card after cell reselection to the 3G/2G card according to the acquired message of cell reselection by the 4G card; and the cell identifier is used for indicating the 3G/2G card to send the reselected 4G card to the MSC;
or, the 4G card may actively send the cell identifier of the 4G card after cell reselection to the 3G/2G card; and the 3G/2G card actively sends the cell identification of the reselected 4G card to the MSC.
The creating module of the MSC is also used for associating the IMSI of the 4G card with the reselected cell identifier of the 4G card so as to establish a new second association and replace the original second association;
preferably, when the 3G/2G card releases the connection, the communication module/detection module of the mobile terminal is further configured to instruct the 3G/2G card to notify the MSC of deleting the second association according to the acquired message that the 3G/2G card releases the connection.
Alternatively, the 3G/2G card may actively notify the MSC to delete the second association when releasing the connection.
The dual-card dual-standby mobile terminal in embodiment 4 is only used to illustrate a system for directional paging of a mobile terminal, and embodiment 4 may adopt a multi-card multi-standby mobile terminal according to actual needs. In the system for directional paging of a mobile terminal provided in embodiments 3 and 4, a 3G/2G card acquires an identifier message from a communication module/detection module of the mobile terminal and sends the identifier message to an MSC, the MSC creates a first association through an association module according to the identifier message, when the 3G/2G card connects to a network, the 3G/2G card acquires a cell identifier of the 4G card and sends the cell identifier to the MSC, the MSC creates a second association through the association module, and the second association is an association between an IMSI of the 4G card and the cell identifier of the 4G card. When there is an incoming call paging 4G card, after receiving the paging request, the MSC sends the cell identifier of the 4G card to the MME to which the 4G card belongs according to the second association, so that the MME to which the 4G card belongs sends the paging request to the corresponding cell through the eNodeB, thereby performing directional paging. The problem that resources are wasted due to a large paging range when the MME pages all cells of the TAI of the idle 4G card in the prior art is solved.
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 (9)

1. A method for directional paging of a mobile terminal, wherein the mobile terminal has at least one 3G/2G card and at least one 4G card, and the 3G/2G card and the 4G card belong to the same operator, the method comprising:
the mobile terminal acquires an identification message and sends the identification message to the MSC, wherein the identification message comprises: the number of all cards in the mobile terminal and the IMSI of all cards;
the MSC creates a first association, wherein the first association is the association of IMSIs of all cards in the mobile terminal;
when the 3G/2G card is connected with a network, acquiring a cell identifier of a 4G card and sending the cell identifier to the MSC;
the MSC creates a second association, wherein the second association is the association between the IMSI of the 4G card and the cell identifier of the 4G card;
when a 4G card is paged by an incoming call, the MSC receives a paging request and sends the cell identifier of the 4G card to an MME to which the 4G card belongs according to the second association;
the MME sends a paging request to the 4G card according to the cell identification of the 4G card,
when the 3G/2G card connects to the network, acquiring the cell identifier of the 4G card specifically includes: when the 3G/2G card is connected with the network, the cell identification of the 4G card is obtained by sending a query request to the 4G card.
2. The method according to claim 1, wherein the mobile terminal acquiring the identification message specifically comprises:
establishing communication among all cards of the mobile terminal, and acquiring the identification message through the communication among all the cards; or,
detecting the number of all cards in the mobile terminal and the IMSIs of all cards to acquire the identification message;
and the mobile terminal sends the identification message to the MSC through the 3G/2G card.
3. The method of directional paging of a mobile terminal as claimed in claim 2, wherein the trigger condition for the 3G/2G card to send the identification message to the MSC is:
when the 3G/2G card is attached to the network.
4. The method of claim 2, wherein the MSC creating the first association specifically comprises:
and the MSC associates the IMSIs of all the cards in the mobile terminal according to the identification message to form a first association.
5. The method for directional paging of a mobile terminal according to any of claims 1-4, wherein when the 4G card performs cell reselection, the method further comprises:
sending the cell identifier of the 4G card after cell reselection to the 3G/2G card through the 4G card;
sending the cell identifier of the reselected 4G card to the MSC through the 3G/2G card;
the MSC associates the IMSI of the 4G card with the reselected cell identifier of the 4G card so as to establish a new second association and replace the original second association;
when the 3G/2G card releases the connection, the method further comprises the following steps:
and informing the MSC to delete the second association through the 3G/2G card.
6. A system for directional paging of a mobile terminal is characterized by comprising the mobile terminal, wherein the mobile terminal is provided with at least one 3G/2G card and at least one 4G card, the 3G/2G card and the 4G card belong to the same operator, and the system further comprises: the MSC and the MME to which the 4G card belongs,
the mobile terminal is configured to acquire an identifier message and send the identifier message to the MSC, where the identifier message includes: the number of all cards in the mobile terminal and the IMSI of all cards;
the MSC is used for creating a first association, wherein the first association is the association of IMSIs of all cards in the mobile terminal;
the mobile terminal is also used for acquiring the cell identification of the 4G card when the 3G/2G card is connected with the network, and sending the cell identification of the 4G card to the MSC;
the MSC is also used for creating a second association, wherein the second association is the association between the IMSI of the 4G card and the cell identifier of the 4G card;
when there is an incoming call to page the 4G card, the MSC is further configured to receive a paging request, and send a cell identifier of the 4G card to the MME;
the MME is used for sending a paging request to the 4G card according to the cell identification of the 4G card,
the mobile terminal is further configured to obtain the cell identifier of the 4G card when the 3G/2G card connects the network, specifically:
and the mobile terminal is also used for indicating the 3G/2G card to send a query request to the 4G card according to the information that the 3G/2G card is connected with the network so as to acquire the cell identifier of the 4G card.
7. The system for directional paging of a mobile terminal of claim 6, wherein the mobile terminal comprises:
the communication module is used for establishing communication among all cards of the mobile terminal, so that the 3G/2G cards acquire the identification message through the communication among all cards of the mobile terminal; or,
the mobile terminal includes:
and the detection module is used for detecting the number of all cards in the mobile terminal and the IMSIs of all the cards so as to acquire the identification message.
8. The system for directional paging of a mobile terminal of claim 7, wherein the MSC comprises a creation module,
the creating module is used for associating the IMSIs of all the cards in the mobile terminal according to the identification message to form a first association;
the communication module/detection module of the mobile terminal is also used for instructing the 3G/2G card to send an identification message to the creation module according to the message that the 3G/2G card is attached to the network.
9. The system for directional paging of a mobile terminal of claim 8,
the communication module/detection module of the mobile terminal is further configured to instruct the 4G card to send the cell identifier of the 4G card after cell reselection to the 3G/2G card according to a cell reselection message of the 4G card; and the cell identifier is used for indicating the 3G/2G card to send the reselected 4G card to the MSC;
the creating module of the MSC is also used for associating the IMSI of the 4G card with the reselected cell identifier of the 4G card so as to establish a new second association and replace the original second association; when the 3G/2G card releases the connection, the system further comprises:
and the communication module/detection module of the mobile terminal is also used for indicating the 3G/2G card to inform the MSC to delete the second association according to the message that the 3G/2G card releases the connection.
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