CN110381551B - Data transmission method, terminal and system for dual-card bi-pass terminal - Google Patents
Data transmission method, terminal and system for dual-card bi-pass terminal Download PDFInfo
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- CN110381551B CN110381551B CN201910668516.6A CN201910668516A CN110381551B CN 110381551 B CN110381551 B CN 110381551B CN 201910668516 A CN201910668516 A CN 201910668516A CN 110381551 B CN110381551 B CN 110381551B
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 230000005540 biological transmission Effects 0.000 title claims abstract description 40
- 230000004927 fusion Effects 0.000 claims abstract description 45
- 238000004891 communication Methods 0.000 claims abstract description 37
- 238000012790 confirmation Methods 0.000 claims description 14
- 230000004044 response Effects 0.000 claims description 13
- 230000009977 dual effect Effects 0.000 claims description 4
- 238000012986 modification Methods 0.000 description 3
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/14—Reselecting a network or an air interface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/165—Performing reselection for specific purposes for reducing network power consumption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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Abstract
The invention discloses a data transmission method, a terminal and a system of a dual-card dual-pass terminal. The method comprises the following steps: if determining that the downlink service data sent by the first server is not received within the preset time length, sending a downlink channel switching request to the first server, wherein the first server is a server which communicates with a first card installed in the dual-card bi-pass terminal, and the downlink channel switching request comprises an identifier of the first card and an identifier of a second card; responding to a paging request which is forwarded by a second server and sent by the convergence equipment, sending an attachment request to the convergence equipment, wherein the second server is a server which communicates with a second card installed in the dual-card dual-pass terminal, and the first server and the second server are both in communication connection with the convergence equipment; and responding to the connection completion message sent by the fusion equipment, and receiving the downlink service data sent by the fusion equipment. When the downlink channel of the first card fails, the second card is automatically selected to transmit downlink data, so that the terminal can still access the internet, and the customer experience is improved.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a data transmission method, a data transmission terminal and a data transmission system of a dual-card dual-pass terminal.
Background
With the development of wireless communication technology, people rely on wireless terminals more and more, wherein, the dual-card dual-pass mobile terminal brings much convenience to users, and the sale ratio of the dual-card dual-pass mobile terminal in the market is also increasing continuously. Two independent card slots, namely a Subscriber Identity Module (SIM) or a Universal Subscriber Identity Module (USIM), can be installed in the dual-card bi-pass mobile terminal. The dual-card dual-pass mobile terminal generally comprises two sets of baseband processors, wherein the two sets of baseband processors can support two SIM cards or USIM cards to work simultaneously, each USIM/SIM card can support one or more network standards, and the two USIM/SIM cards can belong to the same operator or different operators. When the two USIM/SIM cards respectively support different network systems, the mobile terminal supports the two USIM/SIM cards to respectively register successfully on the two networks and simultaneously stand by; when the two USIM/SIM cards support the same network system, the mobile terminal supports the two USIM/SIM cards to register successfully on the same network respectively and stand by at the same time.
The dual-card bi-pass mobile terminal is characterized in that the dual cards of the dual-card bi-pass mobile terminal are divided into a main card and an auxiliary card, when a user uses the dual-card bi-pass mobile terminal to carry out conversation or surf the internet, the main card is selected by default to carry network services, the auxiliary card can be selected manually to carry the network services, and the dual-card bi-pass mobile terminal cannot automatically select which card to carry the network services according to the communication network conditions of the main card and the auxiliary card. If the mobile terminal accesses the internet through the communication network of the main card and a downlink channel fault occurs in the communication network where the main card is located (for example, a downlink channel of a base station is blocked), the server cannot transmit downlink data to the mobile terminal, so that communication between the mobile terminal and the server is interrupted, and user experience is poor.
Disclosure of Invention
Therefore, the invention provides a data transmission method, a device and a system of a dual-card bi-pass terminal, which aim to solve the problem of communication interruption between the terminal and a server caused by downlink channel failure in a network where a first card of the terminal is located in the prior art. The invention aims to solve the problems that: the dual-card bi-pass terminal can not automatically select a bearer network according to the communication network conditions of the main card and the auxiliary card, so that the communication between the terminal and the server is interrupted.
In order to achieve the above object, a first aspect of the present invention provides a data transmission method for a dual-card dual-active terminal, where the method is applied to a dual-card dual-active terminal, and the method includes: if determining that the downlink service data sent by the first server is not received within the preset time length, sending a downlink channel switching request to the first server, wherein the first server is a server which communicates with a first card installed in the dual-card bi-pass terminal, and the downlink channel switching request comprises an identifier of the first card and an identifier of a second card; responding to a paging request which is forwarded by a second server and sent by the convergence equipment, sending an attachment request to the convergence equipment, wherein the second server is a server which communicates with a second card installed in the dual-card dual-pass terminal, and the first server and the second server are both in communication connection with the convergence equipment; and responding to the connection completion message sent by the fusion equipment, and receiving the downlink service data sent by the fusion equipment.
Wherein, the step of receiving the downlink service data sent by the fusion device in response to the connection completion message sent by the fusion device comprises: receiving a connection completion message sent by the fusion equipment, wherein the connection completion message comprises a downlink channel switching completion identifier; according to the downlink channel switching completion identifier, cutting off the connection with the downlink channel of the first server; and receiving the downlink service data sent by the fusion equipment by using a new downlink channel established with the second server.
Before the step of sending the downlink channel switching request to the first server, the method further includes: sending a first message to a first server, wherein the first message comprises: the identification of the first card, the identification of the second card and the type of the terminal; receiving a first association confirmation message returned by the first server; sending the first message to a second server; and receiving a second association confirmation message returned by the second server.
Wherein the first message further comprises: the network type of the first card and the network type of the second card, and the network type of the first card is different from the network type of the second card.
Wherein, the paging request includes unilateral downlink connection identification; the attach request includes a single-sided downlink connection identity.
In order to achieve the above object, a second aspect of the present invention provides a data transmission method for a dual-card dual-pass terminal, where the method is applied to a convergence device, and the method includes: responding to a downlink channel switching request which is forwarded by a first server and sent by a dual-card dual-pass terminal, and sending a paging request to a second server, wherein the downlink channel switching request comprises an identifier of a first card and an identifier of a second card, the first server is a server which communicates with the first card installed in the dual-card dual-pass terminal, and the second server is a server which communicates with the second card installed in the dual-card dual-pass terminal;
responding to an attachment request sent by the dual-card dual-pass terminal, allocating a second destination address to the dual-card dual-pass terminal, and sending a connection completion message to the dual-card dual-pass terminal, wherein the attachment request and the connection completion message are transmitted through a network where a second card installed in the dual-card dual-pass terminal is located;
and responding to the downlink service data sent by the network server, replacing the first destination address in the downlink service data with the second destination address, and sending the downlink service data to the dual-card dual-pass terminal.
Wherein the connection completion message includes: and identifying the completion of downlink channel switching.
Wherein the attach request comprises: and (5) single-side downlink connection identification.
In order to achieve the above object, a third aspect of the present invention provides a dual card dual call mobile terminal, comprising: the first sending module is used for sending a downlink channel switching request to a first server after determining that downlink service data sent by the first server is not received within a preset time length, wherein the first server is a server which communicates with a first card installed in the dual-card dual-channel terminal, and the downlink channel switching request comprises an identifier of the first card and an identifier of a second card; the second sending module is used for responding to a paging request which is forwarded by a second server and sent by the fusion equipment, sending an attachment request to the fusion equipment, wherein the second server is a server which communicates with a second card installed in the dual-card bi-pass terminal, and the first server and the second server are both in communication connection with the fusion equipment; and the receiving module is used for responding to the connection completion message sent by the fusion equipment and receiving the downlink service data sent by the fusion equipment.
In order to achieve the above object, a fourth aspect of the present invention provides a data transmission system for a dual-card dual-pass terminal, including: the system comprises a double-card double-pass terminal, a first server, a second server and fusion equipment; the dual-card bi-pass terminal is respectively in communication connection with the first server and the second server, and the fusion equipment is respectively in communication connection with the first server and the second server; the dual-card dual-active terminal is configured to execute the data transmission method of the dual-card dual-active terminal provided by the first aspect; the first server is used for responding to a first message sent by the dual-card dual-pass terminal and associating the first card with the second card; sending a first association confirmation message to the dual-card dual-pass terminal; sending a received downlink channel switching request sent by the dual-card dual-pass terminal to the fusion device, wherein the first message comprises: the identifier of the first card, the identifier of the second card and the type of the terminal, wherein the downlink channel switching request comprises the identifier of the first card and the identifier of the second card; the second server is used for responding to a first message sent by the dual-card dual-call terminal and associating the first card with the second card; sending a second association confirmation message to the dual-card dual-pass terminal; sending the received paging request sent by the fusion equipment to a terminal; the convergence device is configured to execute the data transmission method of the dual-card dual-pass terminal provided by the second aspect.
The invention has the following advantages: determining that the switching of the downlink channel is completed by a first server which sends a downlink channel switching request to communicate with a first card installed in the dual-card bi-pass terminal; and responding to a paging request which is transmitted by the convergence equipment and is forwarded by a second server communicated with a second card installed in the dual-card dual-pass terminal, and transmitting an attachment request to the convergence equipment, so that the second card can establish communication connection with the convergence equipment. Through forwarding of the fusion equipment, downlink service data are sent to the dual-card bi-pass terminal through the network of the second card, and when the downlink channel of the first card of the dual-card bi-pass terminal fails, the second card is automatically selected to transmit the downlink data, so that the dual-card bi-pass terminal can still access the internet, and the customer experience is improved.
The first server associates the first card with the second card and the second server associates the first card with the second card by respectively sending the first message to the first server and the second server, so that the convergence device can determine to send a paging request to the second server when receiving a downlink channel switching request, and the convergence device can establish communication connection with the second card. And then, downlink service data can be transmitted to the dual-card bi-pass mobile terminal through the network of the second card, so that the continuity of the user accessing the internet is ensured, and the user experience is improved.
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 flow chart of a data transmission method of a dual-card bi-pass terminal according to a first embodiment of the present invention;
fig. 2 is a flow chart of a data transmission method of a dual-card bi-pass terminal according to a second embodiment of the present invention;
fig. 3 is a flow chart of a data transmission method of a dual-card bi-pass terminal according to a third embodiment of the present invention;
fig. 4 is a block diagram of a dual-card dual-pass terminal according to a fourth embodiment of the present invention;
fig. 5 is a block diagram of a data transmission system of a dual-card dual-pass terminal according to a fifth embodiment of the present invention;
fig. 6 is a flowchart of downlink data transmission of a dual-card dual-pass terminal according to a fifth embodiment of the present invention.
In the drawings:
401: the first sending module 402: second sending module
403: receiving module
501: dual-card dual-pass terminal 502: first server
503: the second server 504: fusion device
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 first embodiment of the invention relates to a data transmission method of a dual-card dual-pass terminal. The dual-card bi-pass terminal can automatically select a bearer network according to the communication network conditions of the main card and the auxiliary card, so that the dual-card bi-pass terminal can continuously access the Internet.
The following describes details of the data transmission method of the dual-card bi-pass terminal in this embodiment in detail, and the following is only for facilitating understanding of the details of the implementation of this solution, and is not necessary to implement this solution.
Fig. 1 is a flowchart of a data transmission method of a dual-card dual-active terminal in this embodiment, where the method is applicable to a dual-card dual-active terminal. The method may include the following steps.
In step 101, if it is determined that the downlink service data sent by the first server is not received within the preset time period, a downlink channel switching request is sent to the first server.
The first server is a server which communicates with a first card installed in the dual-card dual-pass terminal, and the downlink channel switching request comprises an identifier of the first card and an identifier of the second card.
The preset time period may be set according to actual conditions, for example, different time lengths such as 10 seconds, 20 seconds, and the like are set. When the dual-card dual-pass terminal accesses the internet through the first card, the data transmission conditions of an uplink channel and a downlink channel can be monitored in real time, if the first card installed in the dual-card dual-pass terminal can upload data to the first server through the uplink channel within a preset time period, but cannot receive downlink service data sent by the first server, it is indicated that the uplink channel of a network to which the first card belongs is normal, but the downlink data channel is abnormal (for example, the downlink data channel is congested and the like), and at the moment, if the first card is still used for accessing the internet, the downlink service data cannot be received. By sending a downlink channel switch request to the first server, it is desirable to switch the downlink channel to resume reception of the downlink data.
For example, if The type of The network to which The first card belongs is a fourth Generation Communication network (4G), The first server is a network node (MME) in The 4G network, and The identifier of The first card may be an International Mobile Subscriber Identity (IMSI) of The first card, or may be other identifiers capable of representing attributes of The first card; the network type of The second card is The 3 Generation Mobile Communication Technology (3G), The second server is a Mobile Switching Center (MSC) in The 3G network, and The identifier of The second card may be an IMSI of The second card or other identifiers capable of characterizing The attribute of The second card. When the downlink channel of the 4G card is abnormal, the 4G card sends a downlink channel switching request to the MME to perform downlink channel switching, where the downlink channel switching request includes the IMSI of the 4G card and the IMSI of the 3G card.
In step 102, an attach request is sent to the convergence device in response to the paging request sent by the convergence device and forwarded by the second server.
The second server is a server which communicates with a second card installed in the dual-card dual-pass terminal, and the first server and the second server are in communication connection with the fusion equipment.
In one specific implementation, the paging request includes a single-sided downlink connection identifier; the attach request includes a single-sided downlink connection identity. Specifically, the convergence device may be a gateway device, or may be other devices that enable two networks of different network types to be converged. After receiving the downlink channel switching request, the convergence device determines that the downlink channel of the first card has a fault, and since the downlink channel switching request includes the identifier of the first card and the identifier of the second card, the convergence device knows that a paging request needs to be sent to the second server, so that the second server can forward the paging request to the second card, and the second card can receive the paging request. After the second card receives the paging request sent by the second server, it can be known through the communication type carried in the paging request that a unilateral downlink communication connection needs to be established with the second server, so that an attachment request carrying a unilateral downlink connection identifier needs to be sent to the fusion device, and a new downlink channel can be established between the second card and the fusion device.
In step 103, in response to the connection completion message sent by the convergence device, the downlink service data sent by the convergence device is received.
It should be noted that, according to the received connection completion message, it can be known that the convergence device and the second card installed in the dual-card dual-pass terminal have established the single-side downlink communication connection. When the convergence device receives downlink service data sent by a network server in the internet, the convergence device forwards the downlink service data to a second card installed in the dual-card dual-pass terminal, so that the continuity of the dual-card dual-pass terminal for accessing the internet is ensured.
In a specific implementation, a connection completion message sent by the fusion device is received, wherein the connection completion message includes a downlink channel switching completion identifier; according to the downlink channel switching completion identifier, cutting off the connection with the downlink channel of the first server; and receiving the downlink service data sent by the fusion equipment by using a new downlink channel established with the second server.
It should be noted that, by the downlink channel switching completion identifier, it can be known that the convergence device has established a new downlink channel with the second card installed in the dual-card dual-pass terminal, at this time, the downlink channel connection between the dual-card dual-pass terminal and the first server is cut off, and the new downlink channel is used to receive downlink service data sent by the convergence device, so that the dual-card dual-pass terminal can continuously access the internet. After receiving the downlink service data, the second card of the dual-card dual-pass terminal displays the downlink service data to the corresponding application software, so that a user can read the specific content of the downlink service data. Meanwhile, because the uplink channel of the first card is good in communication, the user can still use the uplink channel of the first card of the dual-card dual-pass terminal to send uplink service data to the first server, and then the first server forwards the uplink service data to the fusion equipment, so that the fusion equipment uploads the uplink data to a network server of the internet.
In the embodiment, the completion of the downlink channel switching is determined by sending a downlink channel switching request to a first server which communicates with a first card installed in the dual-card dual-pass terminal; and responding to a paging request which is transmitted by the convergence equipment and is forwarded by a second server communicated with a second card installed in the dual-card dual-pass terminal, and transmitting an attachment request to the convergence equipment, so that the second card can establish communication connection with the convergence equipment. Through forwarding of the fusion equipment, downlink service data are sent to the dual-card bi-pass terminal through the network of the second card, and it is guaranteed that when the downlink channel of the first card of the dual-card bi-pass terminal fails, the second card is automatically selected to transmit the downlink data, so that the dual-card bi-pass terminal can still access the internet, and customer experience is improved.
The second embodiment of the invention relates to a data transmission method of a dual-card dual-pass terminal. The second embodiment is substantially the same as the first embodiment, and mainly differs therefrom in that: before sending the downstream channel switching request to the first server, the first server needs to associate the first card with the second card, and at the same time, the second server associates the first card with the second card.
Fig. 2 is a flowchart of a data transmission method of a dual-card dual-active terminal in this embodiment, where the method is applicable to a dual-card dual-active terminal. The method may include the following steps.
In step 201, a first message is sent to a first server.
Wherein the first message includes an identification of the first card, an identification of the second card, and a type of the terminal.
In step 202, a first association confirmation message returned by the first server is received.
It should be noted that it is determined through the first association confirmation message that the first server has associated the first card and the second card, that is, the first server knows that both the first card and the second card are installed on the same terminal, and the terminal is a dual-card dual-pass terminal.
In step 203, a first message is sent to the second server.
In step 204, a second association confirmation message returned by the second server is received.
It should be noted that it is determined through the second association confirmation message that the second server has associated the first card with the second card, that is, the second server knows that both the first card and the second card are installed on the same terminal, and the terminal is a dual-card dual-call terminal.
The first message further comprises a network type of the first card and a network type of the second card, and the network type of the first card is different from the network type of the second card.
Specifically, two cards are installed on two card slots of a dual-card dual-pass mobile terminal: the dual-card dual-pass Mobile terminal comprises a first card and a second card, wherein after The dual-card dual-pass Mobile terminal is started, The first card is attached to a 4G network, and The second card is attached to a 3G network or a second Generation Communication network (2G). The first card sends a first message to the MME, where the first message includes the type of the mobile terminal (i.e., a dual-card dual-active terminal), the IMSI of the first card, the IMSI of the second card, the network type of the first card is 4G, and the network type of the second card is 3G or 2G. After receiving the first message, the MME associates the first card with the second card, and determines that the two cards are installed on the same mobile terminal. Similarly, the second card sends a first message containing the above contents to the MSC, and the MSC, after receiving the first message, associates the first card with the second card to determine that both cards are installed on the same terminal.
It should be noted that the network types of the first card and the second card may be determined according to actual situations, and are not limited to the above examples, and other non-exemplified information is also within the protection scope of the present invention, and is not described herein again.
In step 205, if it is determined that the downlink service data sent by the first server is not received within the preset time period, a downlink channel switching request is sent to the first server.
In step 206, in response to the paging request sent by the convergence device and forwarded by the second server, an attach request is sent to the convergence device.
In step 207, the downlink service data sent by the convergence device is received in response to the connection completion message sent by the convergence device.
It should be noted that steps 205 to 207 in this embodiment are the same as steps 101 to 103 in the first embodiment, and are not described herein again.
In the embodiment, the first card and the second card are associated through the first server, and the first card and the second card are associated through the second server, so that the first server and the second server know that the first card and the second card are installed on the same terminal, when a downlink channel of the first card breaks down, the downlink channel of the first card can be automatically switched to the second card through the fusion equipment connected with the first server and the second server, the dual-card dual-pass terminal can continuously access the internet, and the customer experience is improved.
The third embodiment of the invention relates to a data transmission method of a dual-card dual-pass terminal. The main differences are as follows: the method is applied to the fusion device.
Fig. 3 is a flowchart of a data transmission method of a dual-card dual-pass terminal in this embodiment, where the method is applicable to a convergence device. The method may include the following steps.
In step 301, in response to the downlink channel switching request sent by the dual-card dual-active terminal and forwarded by the first server, a paging request is sent to the second server.
The downlink channel switching request comprises an identifier of a first card and an identifier of a second card, the first server is a server which communicates with the first card installed in the dual-card dual-pass terminal, and the second server is a server which communicates with the second card installed in the dual-card dual-pass terminal.
It should be noted that, through the received downlink channel switching request, the convergence device may know that the downlink channel of the first card has a fault and cannot receive downlink service data sent by the internet. And the downlink channel switching request comprises the identifier of the first card and the identifier of the second card, the first server associates the first card with the second card, so that the convergence device can select the network where the second card is located to replace the downlink channel of the first card, and therefore, the paging request is sent to the second server, so that the second server can forward the paging request to all terminals in the network where the second card is located, and seek to establish a new downlink channel.
In step 302, in response to the attach request sent by the second card installed in the dual-card dual-pass terminal, a second destination address is allocated to the second card installed in the dual-card dual-pass terminal, and a connection completion message is sent to the dual-card dual-pass terminal.
And the attachment request and the connection completion message are transmitted through a network where a second card installed in the dual-card dual-pass terminal is located.
It should be noted that, when the convergence device receives an attach request sent by a second card installed in the dual-card dual-pass terminal, a second destination address is allocated to the second card installed in the dual-card dual-pass terminal, where the second destination address is used to identify a second downlink channel. Specifically, an IP address in the internet, or an IP address set inside the local area network may be used as the second destination address, for example, the second destination address is 192.168.2.55.
After the second destination address is allocated, sending a connection completion message to the dual-card dual-pass terminal, notifying the dual-card dual-pass terminal that the establishment of the new downlink channel between the dual-card dual-pass terminal and the convergence device is completed, specifically, the connection completion message includes a downlink channel switching completion identifier, and the establishment of the new downlink channel between the convergence device and the second card installed in the dual-card dual-pass terminal can be determined through the downlink channel switching completion identifier.
In one specific implementation, the paging request includes a single-sided downlink connection identifier; the attach request includes a single-sided downlink connection identity.
It should be noted that both the paging request and the attach request include a single-side downlink connection identifier, and it can be known through the identifier that only a downlink channel connection is established between the convergence device and the second card installed in the dual-card dual-pass terminal, and an uplink channel is still the first card communicating with the convergence device through the first server. Specifically, when the dual-card bi-pass terminal accesses the internet, uplink service data is sent to a first server through a first card, and then the first server forwards the uplink service data to the convergence device, so that the convergence device uploads the uplink service data to a network server of the internet; and when the fusion device receives the downlink service data, the downlink service data is directly sent to the second card of the dual-card dual-pass terminal through a newly established single-side downlink channel between the fusion device and the second card installed in the dual-card dual-pass terminal, so that when the downlink channel of the first card fails, the dual-card dual-pass terminal can still receive the downlink service data of the internet through the second card, and the customer experience degree is improved.
In step 303, in response to the downlink service data sent by the network server, the first destination address in the downlink service data is replaced by the second destination address, and the downlink service data is sent to the dual-card dual-pass terminal.
It should be noted that the downlink service data sent by the internet server is sent to the first card, so that the destination IP address of the downlink service data fills in the first destination address, that is, the IP address of the first card, and the convergence device needs to replace the destination IP address in the downlink service data with the second destination address, that is, the IP address of the second card, so that the second card can receive the downlink service data through a new downlink channel.
For example: the IP address of the first card is 192.168.0.22, and the IP address of the second card is 192.168.2.55, the destination address of the downlink service data sent by the internet server is 192.168.0.22, if the second card is expected to receive the downlink service data, the destination address needs to be changed into the IP address of the second card, that is, 192.168.2.55, and then the downlink service data with the destination IP address changed is sent to the second card through a new downlink channel, so that the dual-card dual-active terminal receives the downlink service data of the internet through the second card.
In the embodiment, by sending the paging request to the second server and receiving the attach request sent by the second card, the second card and the fusion device establish a new downlink channel, and send downlink service data to the dual-card dual-pass terminal through the new downlink channel, that is, replace the first destination address with the second destination address, which ensures that the dual-card dual-pass terminal can still receive the downlink service data sent by the internet when the downlink channel of the first card fails, ensures the continuity of accessing the internet, and improves the customer experience.
The steps of the above methods are divided for clarity, and the implementation may be combined into one step or split some steps, and the steps are divided into multiple steps, so long as the same logical relationship is included, which are all within the protection scope of the present patent; it is within the scope of the patent to add insignificant modifications to the algorithms or processes or to introduce insignificant design changes to the core design without changing the algorithms or processes.
The fourth embodiment of the present invention relates to a dual-card dual-pass terminal, and the specific implementation of the device can refer to the related description of the first embodiment, and repeated descriptions are omitted. It should be noted that, the specific implementation of the apparatus in this embodiment may also refer to the related description of the second embodiment, but is not limited to the above two examples, and other unexplained examples are also within the protection scope of the apparatus.
As shown in fig. 4, the dual-card dual-pass terminal mainly includes: a first sending module 401, configured to send a downlink channel switching request to a first server after downlink service data sent by the first server is not received within a preset time period, where the first server is a server that communicates with a first card installed in a dual-card dual-channel terminal, and the downlink channel switching request includes an identifier of the first card and an identifier of a second card; a second sending module 402, configured to send an attach request to the convergence device in response to a paging request sent by the convergence device and forwarded by a second server, where the second server is a server in communication with a second card installed in the dual-card dual-pass terminal, and both the first server and the second server are in communication connection with the convergence device; a receiving module 403, configured to receive downlink service data sent by the convergence device in response to the connection completion message sent by the convergence device.
In an example, the receiving module 403 is specifically configured to: receiving a connection completion message sent by the fusion equipment, wherein the connection completion message comprises a downlink channel switching completion identifier; according to the downlink channel switching completion identifier, cutting off the connection with the downlink channel of the first server; and receiving the downlink service data sent by the fusion equipment by using a new downlink channel established with the second server.
In the embodiment, the downlink channel switching request is sent to the first server through the first sending module, and when a paging request forwarded by the second server and sent by the convergence device is received, the attachment request is sent to the convergence device through the second sending module, so that the dual-card bi-pass terminal and the convergence device establish communication connection, and downlink service data sent by the internet server can be received by the dual-card bi-pass terminal through a network where the second card is located, continuity of internet access of the dual-card bi-pass terminal is guaranteed, and user experience is improved.
It should be noted that each module referred to in this embodiment is a logical module, and in practical applications, one logical unit may be one physical unit, may be a part of one physical unit, and may be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, elements that are not so closely related to solving the technical problems proposed by the present invention are not introduced in the present embodiment, but this does not indicate that other elements are not present in the present embodiment.
A fourth embodiment of the present invention relates to a data transmission system of a dual-card dual-pass terminal, and as shown in fig. 5, the system specifically includes: the system comprises a double-card double-pass terminal 501, a first server 502, a second server 503 and a fusion device 504; the dual-card dual-pass terminal 501 is in communication connection with a first server 502 and a second server 503 respectively, and the convergence device 504 is in communication connection with the first server 502 and the second server 503 respectively;
the dual-card bi-pass terminal 501 is configured to execute the data transmission method of the dual-card bi-pass terminal 501 in the first or second embodiment; the first server 502 is configured to associate the first card with the second card in response to a first message sent by the dual-card dual-active terminal 501; sending a first association confirmation message to the dual-card dual-pass terminal 501; sending the received downlink channel switching request sent by the dual-card dual-pass terminal 501 to the convergence device 504, where the first message includes: the identifier of the first card, the identifier of the second card and the type of the terminal, wherein the downlink channel switching request comprises the identifier of the first card and the identifier of the second card; the second server 503 is configured to associate the first card with the second card in response to the first message sent by the dual-card dual-call terminal 501; sending a second association confirmation message to the dual-card dual-pass terminal 501; forwarding the received paging request sent by the convergence device 504 to the dual-card dual-pass terminal; the convergence device 504 is configured to execute the data transmission method of the dual-card dual-active terminal 501 in the third embodiment.
In a specific implementation, the dual-card bi-pass terminal 501 having the first card (4G card) and the second card (3G card) installed at the same time has a downlink channel fault when accessing the internet through the network where the first card is located. The dual-card dual-call terminal 501, the first server 502(MME), the second server 503(MSC) and the convergence device 504(PDN GW or GGSN) form a downlink data transmission system of the dual-card dual-call terminal. The downlink data transmission flow of the system is shown in figure 6,
in step 601, the 4G card sends a first message to the MME.
It should be noted that the first message includes: the identification of the 4G card, the identification of the 3G/2G card and the type of the terminal.
In step 602, the MME returns a first association confirm message to the 4G card.
In step 603, the 3G/2G card sends a first message to the MSC.
In step 604, the MSC returns a first association confirm message to the 3G/2G card.
In step 605, the 4G card sends a downlink path switching request to the MME, and the MME forwards the downlink path switching request to the PDN GW or the GGSN.
In step 606, the PDN GW or GGSN sends a paging request to the MSC, and the MSC forwards the paging request to the 3G/2G card.
It should be noted that, after receiving the downlink channel switching request, the PDN GW or the GGSN determines that the downlink channel of the 4G card has a fault, and because the downlink channel switching request includes the identifier of the 4G card and the identifier of the 3G/2G card, the PDN GW or the GGSN may know that it is necessary to send a paging request to the MSC, so that the MSC can forward the paging request to the 3G/2G card, so that the 3G/2G card can receive the paging request.
In step 607, the 3G/2G card sends an attach request to the PDN GW or the GGSN, where the attach request carries a single-sided downlink connection identifier.
It should be noted that, after receiving the paging request sent by the MSC, the 3G/2G card knows that an attach request carrying a single-sided downlink connection identifier needs to be sent to the PDN GW or GGSN by using the data service type carried in the paging request as the single-sided downlink connection, so that a new downlink channel can be established between the 3G/2G card and the PDN GW or GGSN.
In step 608, the PDN GW or the GGSN sends a connection completion message to the 3G/2G card, where the connection completion message includes a downlink channel switching success identifier.
In step 609, the PDN GW or the GGSN sends the received downlink service data sent by the internet server to the 3G/2G card.
It should be noted that the downlink service data sent by the internet server is sent to the 4G card, so the destination IP address of the downlink service data is the IP address of the 4G card, and the PDN GW or the GGSN needs to replace the destination IP address in the downlink service data with the IP address of the 3G/2G card, so that the 3G/2G card can receive the downlink service data. For example: if the IP address of the 4G card is 192.168.0.22 and the IP address of the 3G/2G card is 192.168.2.55, the destination address of the downlink service data sent by the internet server is 192.168.0.22, and if the 3G/2G card is expected to receive the downlink service data, the destination address needs to be changed to the IP address of the 3G/2G card, i.e. 192.168.2.55, and then the downlink service data with the changed destination IP address is sent to the 3G/2G card, so that the dual-card dual-pass terminal can still receive the downlink service data of the internet through the second card.
After the dual-card bi-pass terminal receives the downlink service data, the service data is displayed to corresponding application software, so that a user can obtain the specific content of the service data. Meanwhile, because the uplink channel of the 4G card is good in communication, a user can still use the uplink channel of the 4G card and can send uplink data to the MME, and then the MME forwards the uplink data to the PDN GW or the GGSN, so that the PDN GW or the GGSN uploads the uplink data to a network server of the Internet.
In the embodiment, the downlink data transmission system of the dual-card dual-pass terminal is formed by the dual-card dual-pass terminal, the first server, the second server and the fusion device, so that when a downlink service channel fault occurs in a communication network where a first card installed on the dual-card dual-pass terminal is located, the communication network where the second card is located can be automatically selected to transmit downlink service data, continuity of the dual-card dual-pass terminal for accessing the internet is guaranteed, and customer experience is improved.
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 data transmission method of a dual-card dual-pass terminal is characterized by being applied to the dual-card dual-pass terminal, and the method comprises the following steps:
if it is determined that downlink service data sent by a first server is not received within a preset time length, a first card installed in the dual-card dual-pass terminal sends a downlink channel switching request to the first server, so that the first server forwards the downlink channel switching request to be forwarded to a fusion device, the first server is a server which communicates with the first card installed in the dual-card dual-pass terminal, and the downlink channel switching request comprises an identifier of the first card and an identifier of a second card;
responding to a paging request which is forwarded by a second server and sent by the convergence equipment, sending an attachment request to the convergence equipment by a second card installed in the dual-card dual-pass terminal, wherein the second server is a server which communicates with the second card installed in the dual-card dual-pass terminal, and the first server and the second server are both in communication connection with the convergence equipment;
responding to a connection completion message sent by the convergence equipment, and receiving the downlink service data sent by the convergence equipment by a second card installed in the dual-card dual-pass terminal;
the paging request comprises: a single-side downlink connection identifier;
the attach request includes: a single-side downlink connection identifier;
the first server is configured to associate the first card with the second card, and the second server is configured to associate the first card with the second card;
and the uplink channel of the dual-card dual-pass terminal is a channel for the first card to communicate with the convergence equipment through the first server.
2. The data transmission method of the dual-card dual-pass terminal according to claim 1, wherein the step of receiving the downlink service data sent by the convergence device in response to the connection completion message sent by the convergence device comprises:
receiving a connection completion message sent by the fusion equipment, wherein the connection completion message comprises a downlink channel switching completion identifier;
according to the downlink channel switching completion identifier, cutting off the connection with the downlink channel of the first server;
and receiving the downlink service data sent by the fusion equipment by using a new downlink channel established with the second server.
3. The data transmission method of the dual-card dual-active terminal as claimed in claim 1, wherein before the step of sending the downlink channel switching request to the first server, the method further comprises:
sending a first message to the first server, wherein the first message comprises: the identification of the first card, the identification of the second card and the type of the terminal;
receiving a first association confirmation message returned by the first server;
sending the first message to the second server;
and receiving a second association confirmation message returned by the second server.
4. The data transmission method of the dual-card dual-active terminal as claimed in claim 3, wherein the first message further comprises:
the network type of the first card and the network type of the second card, and the network type of the first card is different from the network type of the second card.
5. A data transmission method of a dual-card dual-pass terminal is characterized by being applied to fusion equipment, and the method comprises the following steps:
responding to a downlink channel switching request which is forwarded by a first server and sent by a first card installed in a dual-card dual-pass terminal, and sending a paging request to a second server, wherein the downlink channel switching request comprises an identifier of the first card and an identifier of the second card, the first server is a server which communicates with the first card installed in the dual-card dual-pass terminal, and the second server is a server which communicates with the second card installed in the dual-card dual-pass terminal;
responding to an attachment request sent by a second card installed in the dual-card dual-pass terminal, allocating a second destination address to the dual-card dual-pass terminal, and sending a connection completion message to the dual-card dual-pass terminal, wherein the attachment request and the connection completion message are transmitted through a network where the second card installed in the dual-card dual-pass terminal is located;
responding to downlink service data sent by a network server, replacing a first destination address in the downlink service data with a second destination address, and sending the downlink service data to a second card installed in the dual-card dual-pass terminal;
the paging request comprises: a single-side downlink connection identifier;
the attach request includes: a single-side downlink connection identifier;
the first server is configured to associate the first card with the second card, and the second server is configured to associate the first card with the second card;
and the uplink channel of the dual-card dual-pass terminal is a channel for the first card to communicate with the convergence equipment through the first server.
6. The data transmission method of the dual-card dual-active terminal as claimed in claim 5, wherein the connection completion message comprises:
and identifying the completion of downlink channel switching.
7. The utility model provides a two calorie of bi-pass mobile terminal which characterized in that includes:
the system comprises a first sending module, a second sending module and a fusion device, wherein the first sending module is used for sending a downlink channel switching request to a first server by a first card installed in a dual-card dual-pass terminal after downlink service data sent by the first server are not received within a preset time length, so that the first server forwards the downlink channel switching request to the fusion device, the first server is a server communicated with the first card installed in the dual-card dual-pass terminal, and the downlink channel switching request comprises an identifier of the first card and an identifier of a second card;
the second sending module is used for responding to a paging request which is forwarded by a second server and sent by the convergence equipment, a second card installed in the dual-card dual-pass terminal sends an attachment request to the convergence equipment, the second server is a server which communicates with the second card installed in the dual-card dual-pass terminal, and the first server and the second server are both in communication connection with the convergence equipment;
a receiving module, configured to respond to a connection completion message sent by the convergence device, where the second card installed in the dual-card dual-pass terminal receives the downlink service data sent by the convergence device;
the paging request comprises: a single-side downlink connection identifier;
the attach request includes: a single-side downlink connection identifier;
the first server is configured to associate the first card with the second card, and the second server is configured to associate the first card with the second card;
and the uplink channel of the dual-card dual-pass terminal is a channel for the first card to communicate with the convergence equipment through the first server.
8. The utility model provides a data transmission system of dual card bi-pass terminal which characterized in that includes: the system comprises a double-card double-pass terminal, a first server, a second server and fusion equipment;
the dual-card dual-pass terminal is respectively in communication connection with the first server and the second server, and the fusion equipment is respectively in communication connection with the first server and the second server;
the dual-card dual-active terminal is used for executing the data transmission method of the dual-card dual-active terminal as claimed in any one of claims 1 to 4;
the first server is used for responding to a first message sent by the dual-card dual-call terminal and associating a first card with a second card; sending a first association confirmation message to the dual-card dual-pass terminal; sending a received downlink channel switching request sent by a first card installed in the dual-card dual-pass terminal to the convergence device, wherein the first message comprises: the identifier of the first card, the identifier of the second card and the type of the terminal, wherein the downlink channel switching request comprises the identifier of the first card and the identifier of the second card;
the second server is used for responding to the first message sent by the dual-card dual-call terminal and associating the first card with the second card; sending a second association confirmation message to the dual-card dual-pass terminal; forwarding the received paging request sent by the fusion equipment to the dual-card dual-pass terminal;
the convergence device is used for executing the data transmission method of the dual-card dual-pass terminal as claimed in any one of claims 5 to 6;
the paging request comprises: and (5) single-side downlink connection identification.
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