CN107920375B - Data service switching method, device and system in spatial heterogeneous integrated network - Google Patents
Data service switching method, device and system in spatial heterogeneous integrated network Download PDFInfo
- Publication number
- CN107920375B CN107920375B CN201711362755.6A CN201711362755A CN107920375B CN 107920375 B CN107920375 B CN 107920375B CN 201711362755 A CN201711362755 A CN 201711362755A CN 107920375 B CN107920375 B CN 107920375B
- Authority
- CN
- China
- Prior art keywords
- user
- link
- network
- satellite network
- gateway
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
-
- 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
Abstract
The invention provides a method and a device for switching data services in a spatial heterogeneous integrated network, which relate to the technical field of network system switching in spatial communication, and the method comprises the following steps: receiving a link switching request of a first user; based on the link switching request, performing data tunnel change operation on an initial link to add an updated link between a first user and a second user, wherein the second user is a user performing data service with the first user, and the initial link is a link when the first user realizes the data service based on a first satellite network and the second user; switching data traffic from the initial link to the updated link at a target time, wherein the target time is a time when the first user is in an overlapping coverage area of the first satellite network and the second satellite network. The invention solves the technical problem that the noninductive switching of the data service between the heterogeneous networks can not be realized in the original spatial heterogeneous integrated network.
Description
Technical Field
The invention relates to the technical field of spatial communication, in particular to a data service switching method and device in a spatial heterogeneous integrated network.
Background
With the rapid development of mobile communication, mobile communication puts higher demands on the capacity of a spatial information network, and the spatial information network is required to ensure the communication of global coverage, interconnection and intercommunication, quick response and fusion application. Based on the diversity of the current spatial information network, in order to meet the above requirements, intensive research is urgently needed for the comprehensive application of the spatial heterogeneous integrated network.
Considering the dynamic property of the user in the mobile communication process, when the user changes from one cell to another cell, the communication network providing the data service for the user changes, and the switching of the user data service between different communication networks needs to be completed to ensure the data transmission to be uninterrupted. In the spatial heterogeneous integrated network, the network systems are of various types, the space-time span of communication signals is large, the switching of the communication network usually involves the switching of a satellite network, and the types of satellite resources are different, which are specifically shown in different wave beams, frequency bands and the like of the communication signals. Therefore, when the data service of the user is switched between different communication networks, a data system, a protocol system and the like are changed, how to implement the non-inductive switching of the data service of the user between heterogeneous networks in the original spatial heterogeneous integrated network is not an effective solution at present.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a method, an apparatus, and a system for switching a data service in a spatial heterogeneous integrated network, so as to alleviate a technical problem that an original spatial heterogeneous integrated network cannot implement an imperceptible switching of a data service between heterogeneous networks.
In a first aspect, an embodiment of the present invention provides a method for switching a data service in a spatial heterogeneous integrated network, where the method includes:
receiving a link switching request of a first user, wherein the first user is a user moving from a coverage area of a first satellite network to a coverage area of a second satellite network;
based on the link switching request, performing a data tunnel change operation on an initial link to add an update link between the first user and a second user, where the second user is a user performing a data service with the first user, and the initial link is a link when the first user implements the data service based on the first satellite network and the second user;
switching the data traffic from the initial link to the updated link at a target time, wherein the target time is a time when the first user is in an overlapping coverage area of the first satellite network and the second satellite network.
With reference to the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, where receiving a link handover request of a first user includes:
receiving a network access request sent by the first user, and establishing a first sublink according to the network access request, wherein the first sublink is a communication link used for transmitting data between the first user and the first satellite network;
and receiving a link switching request sent by the first user based on the first sublink.
With reference to the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where establishing a first sublink according to the network access request includes:
establishing the first sublink between the first user and a first border gateway through an in-network data service module, wherein the in-network data service module is an in-network data service processing module of the first satellite network, and the first border gateway is a gateway of the first satellite network;
assigning an IP to the first user through the first border gateway;
and associating the ID of the first user with the IP to obtain an association relation, and storing the association relation.
With reference to the second possible implementation manner of the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, where storing the association relationship includes:
storing the association relationship at the first border gateway;
and sending the association relation to a comprehensive network management module through the first border gateway, and storing the association relation in the comprehensive network management module, wherein the comprehensive network management module is a system for comprehensively managing a communication network in a data service.
With reference to the third possible implementation manner of the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where, based on the link switching request, a change operation of a data tunnel is performed on an initial link, so as to add an update link between the first user and the second user, including:
after receiving the link switching request, acquiring a communication network of the second user;
judging whether the communication network of the second user is the first satellite network or the second satellite network to obtain a judgment result;
and according to the judgment result, carrying out data tunnel change operation on the initial link so as to add the updated link between the first user and the second user.
With reference to the fourth possible implementation manner of the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, where, according to the determination result, a data tunnel change operation is performed on an initial link, so as to add an update link between the first user and the second user, including:
acquiring a second border gateway and acquiring a first border gateway from the initial link under the condition that the judgment result is that the first satellite network exists, wherein the first border gateway is a gateway of the first satellite network, and the second border gateway is a gateway of the second satellite network;
and based on the initial link, adding a data tunnel between the first border gateway and the second border gateway, establishing a second sublink between the first user and the second border gateway, and deleting the first sublink.
With reference to the fourth possible implementation manner of the first aspect, an embodiment of the present invention provides a sixth possible implementation manner of the first aspect, where, according to the determination result, a data tunnel change operation is performed on an initial link, so as to add an update link between the first user and the second user, including:
acquiring a first border gateway and a second border gateway from the initial link under the condition that the communication network of the second user is the second satellite network according to the judgment result, wherein the first border gateway is a gateway of the first satellite network, and the second border gateway is a gateway of the second satellite network;
deleting the data tunnel between the first border gateway and the second border gateway, establishing a second sublink between the first user and the second border gateway, and deleting the first sublink.
With reference to the fourth possible implementation manner of the first aspect, an embodiment of the present invention provides a seventh possible implementation manner of the first aspect, where, according to the determination result, a data tunnel change operation is performed on an initial link, so as to add an update link between the first user and the second user, including:
acquiring a second border gateway and acquiring a first border gateway from the initial link under the condition that the communication network of the second user is not the first satellite network or the second satellite network according to the judgment result, wherein the first border gateway is a gateway of the first satellite network, and the second border gateway is a gateway of the second satellite network;
and additionally arranging a data tunnel between the first border gateway and the second border gateway, establishing a second sublink between the first user and the second border gateway, and deleting the first sublink.
With reference to the first aspect, an embodiment of the present invention provides an eighth possible implementation manner of the first aspect, where the first user includes any one of: the source user and the destination user, the second user includes any one of the following: the system comprises a source user and a target user, wherein the source user is a user for sending data in the data service, and the target user is a user for receiving data in the data service.
In a second aspect, an embodiment of the present invention further provides a data service switching apparatus in a spatial heterogeneous integrated network, including:
a receiving module, configured to receive a link switching request of a first user, where the first user is a user moving from a coverage area of a first satellite network to a coverage area of a second satellite network;
a link change module, configured to perform a data tunnel change operation on an initial link based on the link switching request, so as to add an update link between the first user and a second user, where the second user is a user performing a data service with the first user, and the initial link is a link when the first user implements the data service based on the first satellite network and the second user;
a switching module, configured to switch the data service from the initial link to the updated link at a target time, where the target time is a time when the first user is in an overlapping coverage area of the first satellite network and the second satellite network.
In a third aspect, an embodiment of the present invention further provides a computer-readable medium having non-volatile program code executable by a processor, including: the program code causes the processor to execute the method for switching data services in a spatial heterogeneous integrated network according to the first aspect.
The embodiment of the invention has the following beneficial effects: the first user is a user moving from the coverage area of the first satellite network to the coverage area of the second satellite network, the second user is a user performing data service with the first user, and the initial link is a link when the first user realizes the data service with the second user through the first satellite network. In the embodiment of the invention, after receiving a link switching request of a first user, based on the link switching request, the initial link is subjected to data tunnel change operation, so that an updated link is additionally arranged between the first user and a second user, and the first user and the second user realize data service through a second satellite network through the updated link; and then switching the data service from the initial link to an updated link at a target moment, wherein the target moment is the moment when the first user is in an overlapped coverage area of the first satellite network and the second satellite network, at the moment, the first user can realize the data service by using the initial link and can also realize the data service by using the updated link, and the data service is switched at the target moment so that the data service is not interrupted, thereby effectively relieving the technical problem that the non-inductive switching of the user data service among the heterogeneous networks cannot be realized in the original spatial heterogeneous integrated network.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a data service switching method in a spatial heterogeneous integrated network according to an embodiment of the present invention;
fig. 2 is a block diagram of an inter-network data link according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for establishing a first sublink according to an access request according to an embodiment of the present invention;
fig. 4 is a block diagram of an initial link according to an embodiment of the present invention;
fig. 5 is a block diagram of an update link according to an embodiment of the present invention;
fig. 6 is a block diagram of another initial link according to an embodiment of the present invention;
fig. 7 is a block diagram of another update link according to an embodiment of the present invention;
fig. 8 is a block diagram of another initial link according to an embodiment of the present invention;
fig. 9 is a block diagram of another update link according to an embodiment of the present invention;
fig. 10 is a schematic view of a data service switching scenario according to an embodiment of the present invention;
fig. 11 is a block diagram of a data service switching device in a spatial heterogeneous integrated network according to a second embodiment of the present invention;
fig. 12 is a block diagram of a data service switching system in a spatial heterogeneous integrated network according to a fourth embodiment of the present invention.
Icon: 100-a receiving module; 200-a link change module; 300-a switching module; 1-an in-network data service module; 2-border gateway; 3-comprehensive network management module; 4-a network tunnel module; and 5, a data service switching module.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
When the data service of a user is switched among different communication networks, a data system, a protocol system and the like are changed, how to realize the non-inductive switching of the data service of the user among heterogeneous networks in the original spatial heterogeneous integrated network is achieved, and an effective solution is not available at present. Based on this, the method and the device for switching the data service in the spatial heterogeneous integrated network provided by the embodiment of the invention can solve the technical problem that the user data service cannot be switched among heterogeneous networks in the original spatial heterogeneous integrated network in an imperceptible manner.
Example one
The data service switching method in the spatial heterogeneous integrated network provided by the embodiment of the present invention, as shown in fig. 1, includes:
step S102, a link switching request of a first user is received, where the first user is a user moving from a coverage area of a first satellite network to a coverage area of a second satellite network.
Specifically, the users in the embodiments of the present invention all refer to user terminal devices.
And step S104, based on the link switching request, performing data tunnel change operation on the initial link to add an updated link between the first user and a second user, wherein the second user is a user performing data service with the first user, and the initial link is a link when the first user realizes the data service based on the first satellite network and the second user.
And step S106, switching the data service from the initial link to the updated link at a target time, wherein the target time is the time when the first user is in the overlapping coverage area of the first satellite network and the second satellite network.
In the embodiment of the invention, after receiving a link switching request of a first user, based on the link switching request, link change operation is carried out on an initial link so as to add an updated link between the first user and a second user, and the first user and the second user realize data service through a second satellite network through the updated link; and then switching the data service from the initial link to an updated link at a target moment, wherein the target moment is the moment when the first user is in the overlapping coverage area of the first satellite network and the second satellite network, and the data service is switched at the target moment so that the data service is not interrupted, thereby effectively relieving the technical problem that the user data service cannot be switched among heterogeneous networks in the original spatial heterogeneous integrated network in an imperceptible manner.
It should be noted that, the original data service system in each satellite network is not changed, and the change situation of the data in the data service in the transmission process between the network systems is as follows: after a data service initiated by a source user reaches a source boundary gateway (namely, a boundary gateway of a source satellite network, wherein the source satellite network refers to a satellite network accessed by the source user), data in the data service is uniformly converted into IP data at the source boundary gateway, and after the IP data reaches a target boundary gateway (namely, a boundary gateway of a target user satellite network) through the Internet, the IP data is converted into an original data service system of the target satellite network (namely, a satellite network accessed by the target user) at the target boundary gateway. The specific flow of the data service between the network systems is as follows:
the source user sends data and a target user ID to a source boundary gateway by using an original data service system in a source satellite network;
the source boundary gateway queries the IP of the target user from the comprehensive network management module by using the ID of the target user;
the source border gateway packs the data into an IP data packet and sends the IP data packet to a target border gateway through the Internet;
after receiving the IP data packet, the target border gateway inquires a target user ID according to a target user IP stored in the target border gateway;
the target boundary gateway converts the IP data packet into an original data format in the target satellite network, and transmits the data to a target user by using an original data service system of the target satellite network. The data link between networks is shown in fig. 2.
In addition, as can be seen from the above description, the first user and the second user are users performing data services. The first user may be a source user or a destination user, and the second user may also be a source user or a destination user. Specifically, when the first user is a source user, the second user is a destination user; for another example, when the first user is a destination user, the second user is a source user. That is, when a first user sends a data service request to a second user, the first user is a source user, and the second user is a destination user; when the second user sends a data service request to the first user, the first user is a destination user, and the second user is a source user. Hereinafter, embodiments of the present invention will be described in detail with reference to specific embodiments.
As can be seen from the above description, in the embodiment of the present invention, a link switching request of a first user is first received, and then, a data tunnel change operation is performed on an initial link based on the request.
In another optional implementation manner of the embodiment of the present invention, step S102, receiving a link switching request of a first user includes:
firstly, receiving a network access request sent by a first user, and establishing a first sublink according to the network access request, wherein the first sublink is a communication link used for transmitting data between the first user and a first satellite network;
then, a link switching request sent by the first user is received based on the first sublink.
In the embodiment of the invention, a first sub-link is established between a first user and a first satellite network to complete the network access of the first user in the first satellite network. The link switch request is then made by the first user, i.e. by the user with the changed communication network.
In another optional implementation manner of the embodiment of the present invention, as shown in fig. 3, the establishing a first sublink according to an access request includes:
step S301, a first sublink is established between a first user and a first border gateway through an in-network data service module, wherein the in-network data service module is an in-network data service processing module of a first satellite network, and the first border gateway is a gateway of the first satellite network;
step S302, IP is distributed to a first user through a first border gateway;
step S303, associate the ID and the IP of the first user to obtain an association relationship, and store the association relationship.
In another optional implementation manner of the embodiment of the present invention, storing the association relationship includes:
storing the association relationship in the first border gateway;
and sending the association relation to the comprehensive network management module through the first border gateway, and storing the association relation in the comprehensive network management module, wherein the comprehensive network management module is a system for comprehensively managing the communication network in the data service.
Specifically, the function of the intra-network data service module of the satellite network is to process data services among users in the corresponding satellite network, and the data services in each satellite network are still performed according to the original system in the satellite network.
In addition, each user has a unique ID, after the user accesses the satellite network, the boundary gateway of the satellite network distributes IP for the user, and the correlation between the IDs and the IPs of all the users in the corresponding satellite network is stored in the boundary gateway.
Each user has a unique IP within each satellite network. The comprehensive network management module is a system for comprehensively managing the communication network in the data service, stores all ID/IP corresponding tables in the satellite network, and simultaneously monitors the network access/network exit of the user.
When a user accesses to/quits the network in the target satellite network, firstly, the border gateway of the target satellite network updates the incidence relation list between the ID and the IP (the updating operation comprises the addition of the incidence relation or the deletion of the incidence relation), then the border gateway sends the updated incidence relation list to the comprehensive network management module server, and the comprehensive network management module server updates the general list. For example, the contents stored in the general table of the integrated network management module server are as follows:
the boundary gateway of each satellite network can obtain the association relation between the ID and IP of the accessed user of all satellite networks by inquiring the comprehensive network management module server.
The embodiment of the present invention provides a network access principle of a first user, and it should be noted that the network access principle of a second user is also as described above.
In another optional implementation manner of the embodiment of the present invention, performing a data tunnel change operation on an initial link based on a link switching request to add an update link between a first user and a second user includes:
after receiving the link switching request, acquiring a communication network of a second user;
judging whether the communication network of the second user is the first satellite network or the second satellite network to obtain a judgment result;
and according to the judgment result, carrying out data tunnel change operation on the initial link so as to add an update link between the first user and the second user.
The judgment result is divided into three conditions:
(1) the communication network of the second user is the first communication network, i.e. the first user moves from being in the same communication network as the second user to being in a different communication network from the second user;
(2) the communication network of the second user is a second communication network, i.e. the first user moves from being in a different communication network to being in the same communication network as the second user;
(3) the communication network of the second user is neither the first communication network nor the second communication network, i.e. the first user moves from one communication network different from the second user to another communication network different from the second user.
Data tunnels are needed for data transmission between different network systems, and are first explained as follows:
the establishment of the data tunnel utilizes a tunneling technique, which is a technique of transferring data between networks by using an infrastructure of the internet. The data transmitted by using the data tunnel can be data frames or packets of different protocols, and the data frames or packets of other protocols are re-encapsulated by the tunneling protocol and then sent through the tunnel, so that the data tunnel can realize data transmission among heterogeneous network systems.
And when the judgment result is any one of the three situations, performing data tunnel change operation on the initial link according to the judgment result so as to add an update link between the first user and the second user, wherein the specific process is described as follows.
The communication network of the second user is the first satellite network according to the first condition
According to the judgment result, the change operation of the data tunnel is carried out on the initial link, so that an update link is additionally arranged between the first user and the second user, and the method comprises the following steps:
acquiring a second boundary gateway and acquiring a first boundary gateway from an initial link, wherein the first boundary gateway is a gateway of a first satellite network, and the second boundary gateway is a gateway of a second satellite network;
and based on the initial link, adding a data tunnel between the first border gateway and the second border gateway, establishing a second sublink between the first user and the second border gateway, and deleting the first sublink.
Specifically, in combination with the functions of the above-mentioned integrated network management module and border gateway, the process of establishing the initial link is as follows:
(1) the first user and the second user access the network in the first satellite network, and the first boundary gateway allocates IP for the first user and the second user respectively and reports to the comprehensive network management module.
(2) The source user of the first user and the second user transmits data to the destination user satellite network by using the original data service system of the source satellite network, and the data service module in the network establishes a data link between the first user and the second user as shown in fig. 4.
The data link switching process is as follows:
(1) the first user accesses the second boundary gateway in the second satellite network, the first user accesses the second boundary gateway, a second sublink is established between the first user and the second boundary gateway, the second boundary gateway distributes IP for the first user, and reports the association relationship between the ID and the IP of the first user in the second satellite network to the comprehensive network management module;
(2) a first user sends a link switching request to apply for switching a link;
(3) the second border gateway uses the second user ID to inquire the IP of the second user in the first satellite network in the integrated network management module server, wherein the incidence relation between the ID and the IP of the second user in the first satellite network is stored in the integrated network management module server when the initial link is established;
(4) establishing a data tunnel from the second border gateway to the first border gateway, wherein an updating link from the first user to the second user is shown in FIG. 5, and the first sublink no longer exists in the updating link;
(6) the data service is switched from the initial link to the updating link to complete the non-inductive switching;
(7) the first user resigns from the first satellite network.
Case two, the communication network of the second user is judged to be the second satellite network
According to the judgment result, the change operation of the data tunnel is carried out on the initial link, so that an update link is additionally arranged between the first user and the second user, and the method comprises the following steps:
acquiring a first boundary gateway and a second boundary gateway from an initial link, wherein the first boundary gateway is a gateway of a first satellite network, and the second boundary gateway is a gateway of a second satellite network;
deleting the data tunnel between the first border gateway and the second border gateway, establishing a second sublink between the first user and the second border gateway, and deleting the first sublink.
Specifically, in combination with the functions of the above-mentioned integrated network management module and border gateway, the process of establishing the initial link is as follows:
(1) the first user accesses the network in the first satellite network, and the first boundary gateway distributes IP for the first user and reports to the comprehensive network management module.
(2) And the second user accesses the network in the second satellite network, and the second border gateway distributes the IP and reports the IP to the comprehensive network management module.
(3) A source user of the first user and the second user sends data in a data service system of a source satellite network, a data service module in the network establishes a data link as shown in fig. 6 between the first user and the second user, wherein the first border gateway and the second border gateway perform data transmission by performing a tunnel technology through the internet.
The data link switching process is as follows:
(1) the first user accesses the second boundary gateway in the second satellite network, the first user accesses the second boundary gateway, a second sublink is established between the first user and the second boundary gateway, the second boundary gateway distributes IP for the first user, and reports the association relationship between the ID and the IP of the first user in the second satellite network to the comprehensive network management module;
(2) a first user sends a link switching request to apply for switching a link;
(3) the second border gateway uses the second user ID to inquire the IP of the second user in the first satellite network in the integrated network management module server, wherein the incidence relation between the ID and the IP of the second user in the first satellite network is stored in the integrated network management module server when the initial link is established;
(4) the updated link from the first user to the second user is shown in fig. 7, and the link between the first border gateway and the second border gateway in the initial link and the first sub-link no longer exist in the updated link;
(5) the data service is switched from the initial link to the updating link to complete the non-inductive switching;
(6) the first user resigns from the first satellite network.
And the third condition that the communication network of the second user is not the first satellite network or the second satellite network
According to the judgment result, the change operation of the data tunnel is carried out on the initial link, so that an update link is additionally arranged between the first user and the second user, and the method comprises the following steps:
under the condition that the judgment result is that the communication network of the second user is not the first satellite network and the second satellite network, acquiring a second boundary gateway, and acquiring a first boundary gateway from the initial link, wherein the first boundary gateway is a gateway of the first satellite network, and the second boundary gateway is a gateway of the second satellite network;
and additionally arranging a data tunnel between the first border gateway and the second border gateway, establishing a second sublink between the first user and the second border gateway, and deleting the first sublink.
Specifically, taking the second user as a non-satellite network user as an example, and combining the functions of the above-mentioned integrated network management module and the border gateway, the process of establishing the initial link is as follows:
(1) a first user accesses the network in a first satellite network, a first boundary gateway allocates an IP and reports to a comprehensive network management module;
(2) a source user of the first user and the second user sends data in the data service to a source border gateway by using a data service system of a source satellite network, and a data service module in the network establishes a data link between the first user and the second user as shown in fig. 8, wherein the first border gateway and the second user implement a tunnel technology through the internet to realize data transmission.
It should be noted that the second user is a non-satellite network user, the second user is connected with the first border gateway in the satellite network through the initial link, the first border gateway allocates an IP to the second user, and the network management module is integrated on the association relationship between the ID and the IP of the second user in the first satellite.
The data link switching process is as follows:
(1) the first user accesses the second boundary gateway in the second satellite network, the first user accesses the second boundary gateway, a second sublink is established between the first user and the second boundary gateway, the second boundary gateway distributes IP for the first user, and reports the association relationship between the ID and the IP of the first user in the second satellite network to the comprehensive network management module;
(2) a first user sends a link switching request to apply for switching a link;
(3) the second border gateway uses the second user ID to inquire the IP of the second user in the first satellite network in the integrated network management module, wherein the incidence relation between the ID and the IP of the second user in the first satellite network is stored in the integrated network management module server when the initial link is established;
(4) the second border gateway establishes a data tunnel link to the first border gateway through the internet;
(5) the update link from the first user to the second user is shown in fig. 9, and the first sub-link no longer exists in the update link;
(6) the data service is switched from the initial link to the updating link to complete the non-inductive switching;
(7) the first user resigns from the first satellite network.
For better understanding the switching process of the data service, taking the first user as a destination user and the second user as a source user as an example, fig. 10 shows a scenario diagram of data service switching in an embodiment of the present invention, and fig. 10 is first described as follows:
a first satellite network (satellite network 1 in the figure) and a second satellite network (satellite network 2 in the figure);
a first border gateway, namely a border gateway 1 in the figure, and a second border gateway, namely a border gateway 2 in the figure;
the source user, namely user 1 in the graph, is a data sending end; the target user, namely user 2 in the graph, is a data receiving end;
location 1 is a location where the first user is in a first satellite network coverage area, location 2 is an area where the first user is in an overlapping coverage area of the first satellite network and a second satellite network, location 3 is a location where the first user is in a second satellite network coverage area, wherein,
when the first user is at the position 1, the establishing process of the initial link is implemented;
when the first user is at the position 2, implementing (1) to (5) in the switching process of the data link;
when the first user is at location 3, steps (6) to (7) of the above-described handover procedure for the data link are performed.
Example two
An embodiment of the present invention provides a data service switching apparatus in a spatial heterogeneous integrated network, as shown in fig. 11, including:
a receiving module 100, configured to receive a link handover request of a first user, where the first user is a user moving from a coverage area of a first satellite network to a coverage area of a second satellite network;
a link changing module 200, configured to perform a data tunnel change operation on an initial link based on a link switching request, so as to add an updated link between a first user and a second user, where the second user is a user performing a data service with the first user, and the initial link is a link when the first user implements the data service based on the first satellite network and the second user;
the switching module 300 is configured to switch the data service from the initial link to the updated link at a target time, where the target time is a time when the first user is in an overlapping coverage area of the first satellite network and the second satellite network.
In the embodiment of the present invention, after the receiving module 100 receives the link switching request of the first user, the link changing module 200 performs a link changing operation on the initial link based on the link switching request, so as to add an updated link between the first user and the second user, and enable the first user to implement a data service with the second user through the second satellite network through the updated link; then, the switching module 300 switches the data service from the initial link to the updated link at a target time, where the target time is a time when the first user is in an overlapping coverage area of the first satellite network and the second satellite network, and the data service is switched at the target time so that the data service is not interrupted, thereby effectively alleviating the technical problem that the user data service cannot be switched among heterogeneous networks in the original spatial heterogeneous integrated network without any sense.
In another optional implementation manner of the embodiment of the present invention, the receiving module includes:
the system comprises an establishing unit, a first satellite network and a second satellite network, wherein the establishing unit is used for receiving a network access request sent by a first user and establishing a first sublink according to the network access request, and the first sublink is a communication link used for transmitting data between the first user and the first satellite network;
a receiving unit, configured to receive, based on the first sublink, a link switching request sent by the first user.
In another optional implementation manner of the embodiment of the present invention, the establishing unit includes:
the system comprises an establishing subunit, a first boundary gateway and a second boundary gateway, wherein the establishing subunit is used for establishing a first sub-link between a first user and the first boundary gateway through an in-network data service module, the in-network data service module is an in-network data service processing module of a first satellite network, and the first boundary gateway is a gateway of the first satellite network;
an allocation subunit, configured to allocate an IP to the first user through the first border gateway;
and the storage subunit is used for associating the ID and the IP of the first user to obtain an association relationship and storing the association relationship.
In another optional implementation manner of the embodiment of the present invention, the storage subunit is configured to:
storing the association relationship in the first border gateway;
and sending the association relation to the comprehensive network management module through the first border gateway, and storing the association relation in the comprehensive network management module, wherein the comprehensive network management module is a system for comprehensively managing the communication network in the data service.
In another optional implementation manner of the embodiment of the present invention, the link changing module includes:
an acquisition unit, configured to acquire a communication network of a second user after receiving the link switching request;
the judging unit is used for judging whether the communication network of the second user is the first satellite network or the second satellite network to obtain a judging result;
and the link changing unit is used for carrying out data tunnel changing operation on the initial link according to the judgment result so as to additionally increase an updating link between the first user and the second user.
In another optional implementation manner of the embodiment of the present invention, the link changing unit is configured to:
acquiring a second border gateway under the condition that the judgment result is that the first satellite network exists, and acquiring a first border gateway from the initial link, wherein the first border gateway is a gateway of the first satellite network, and the second border gateway is a gateway of the second satellite network;
and based on the initial link, adding a data tunnel between the first border gateway and the second border gateway, establishing a second sublink between the first user and the second border gateway, and deleting the first sublink.
In another optional implementation manner of the embodiment of the present invention, the link changing unit is configured to:
under the condition that the communication network of the second user is the second satellite network according to the judgment result, acquiring a first boundary gateway and a second boundary gateway from the initial link, wherein the first boundary gateway is a gateway of the first satellite network, and the second boundary gateway is a gateway of the second satellite network;
deleting the data tunnel between the first border gateway and the second border gateway, establishing a second sublink between the first user and the second border gateway, and deleting the first sublink.
In another optional implementation manner of the embodiment of the present invention, the link changing unit is configured to:
under the condition that the judgment result is that the communication network of the second user is not the first satellite network and the second satellite network, acquiring a second boundary gateway, and acquiring a first boundary gateway from the initial link, wherein the first boundary gateway is a gateway of the first satellite network, and the second boundary gateway is a gateway of the second satellite network;
and additionally arranging a data tunnel between the first border gateway and the second border gateway, establishing a second sublink between the first user and the second border gateway, and deleting the first sublink.
In another optional implementation manner of the embodiment of the present invention, the first user includes any one of: the source user and the destination user, the second user includes any one of the following: the system comprises a source user and a target user, wherein the source user is a user for sending data in the data service, and the target user is a user for receiving data in the data service.
EXAMPLE III
An embodiment of the present invention provides a computer-readable medium having non-volatile program code executable by a processor, including: the program code causes the processor to execute the method for switching data services in the spatial heterogeneous integrated network described in the first embodiment.
In the embodiment of the present invention, the program code causes the processor to execute the method for switching data services in a spatial heterogeneous integrated network described in the first embodiment, an update link is additionally provided between the first user and the second user, and the first user and the second user realize the data services through the second satellite network by using the update link; and then switching the data service from the initial link to an updated link at a target moment, wherein the target moment is the moment when the first user is in the overlapping coverage area of the first satellite network and the second satellite network, and the data service is switched at the target moment so that the data service is not interrupted, thereby effectively relieving the technical problem that the user data service cannot be switched among heterogeneous networks in the original spatial heterogeneous integrated network in an imperceptible manner.
Example four
The data service switching system in the spatial heterogeneous integrated network provided in the embodiment of the present invention, as shown in fig. 12, includes: an in-network data service module 1, a border gateway 2, an integrated network management module 3, a network tunnel module 4 and a data service switching module 5, wherein,
the border gateway 2 is respectively connected with the in-network data service module 1, the integrated network management module 3, the network tunnel module 4 and the data service switching module 5, and the network tunnel module 4 and the data service switching module 5 are mutually connected;
the functions of the in-network data service module 1, the border gateway 2, and the integrated network management module 3 are described in the first embodiment, and are not described herein again, the in-network data service module 1, the border gateway 2, and the integrated network management module 3 are combined to execute step S102 in the first embodiment, the network tunnel module 4 is configured to execute step S104 in the first embodiment, and the data service switching module 5 is configured to execute step S106 in the first embodiment.
In the embodiment of the present invention, the data service switching system in the spatial heterogeneous integrated network executes the data service switching method in the spatial heterogeneous integrated network described in the first embodiment, an update link is additionally provided between the first user and the second user, and the first user and the second user realize the data service through the second satellite network by using the update link; and then switching the data service from the initial link to an updated link at a target moment, wherein the target moment is the moment when the first user is in the overlapping coverage area of the first satellite network and the second satellite network, and the data service is switched at the target moment so that the data service is not interrupted, thereby effectively relieving the technical problem that the user data service cannot be switched among heterogeneous networks in the original spatial heterogeneous integrated network in an imperceptible manner.
The method, the apparatus, and the computer program product for switching data services in a spatial heterogeneous integrated network provided in the embodiments of the present invention include a computer-readable storage medium storing a program code, where instructions included in the program code may be used to execute the method in the foregoing method embodiments, and specific implementation may refer to the method embodiments, and will not be described herein again.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A method for switching data service in a spatial heterogeneous integrated network is characterized by comprising the following steps:
receiving a link switching request of a first user, wherein the first user is a user moving from a coverage area of a first satellite network to a coverage area of a second satellite network;
based on the link switching request, performing a data tunnel change operation on an initial link to add an update link between the first user and a second user, where the second user is a user performing a data service with the first user, and the initial link is a link when the first user implements the data service based on the first satellite network and the second user;
switching the data traffic from the initial link to the updated link at a target time, wherein the target time is a time when the first user is in an overlapping coverage area of the first satellite network and the second satellite network;
receiving a link switching request of a first user, comprising:
receiving a network access request sent by the first user, and establishing a first sublink according to the network access request, wherein the first sublink is a communication link used for transmitting data between the first user and the first satellite network;
receiving a link switching request sent by the first user based on the first sublink;
establishing a first sublink according to the network access request, comprising:
establishing the first sublink between the first user and a first border gateway through an in-network data service module, wherein the in-network data service module is an in-network data service processing module of the first satellite network, and the first border gateway is a gateway of the first satellite network;
assigning an IP to the first user through the first border gateway;
and associating the ID of the first user with the IP to obtain an association relation, and storing the association relation.
2. The method of claim 1, wherein storing the association comprises:
storing the association relationship at the first border gateway;
and sending the association relation to a comprehensive network management module through the first border gateway, and storing the association relation in the comprehensive network management module, wherein the comprehensive network management module is a system for comprehensively managing a communication network in a data service.
3. The method of claim 2, wherein performing a data tunnel change operation on an initial link based on the link handover request to add an updated link between the first user and the second user comprises:
after receiving the link switching request, acquiring a communication network of the second user;
judging whether the communication network of the second user is the first satellite network or the second satellite network to obtain a judgment result;
and according to the judgment result, carrying out data tunnel change operation on the initial link so as to add the updated link between the first user and the second user.
4. The method according to claim 3, wherein performing a data tunnel change operation on the initial link according to the determination result to add an update link between the first user and the second user comprises:
acquiring a second border gateway and acquiring a first border gateway from the initial link under the condition that the judgment result is that the first satellite network exists, wherein the first border gateway is a gateway of the first satellite network, and the second border gateway is a gateway of the second satellite network;
and based on the initial link, adding a data tunnel between the first border gateway and the second border gateway, establishing a second sublink between the first user and the second border gateway, and deleting the first sublink.
5. The method according to claim 3, wherein performing a data tunnel change operation on the initial link according to the determination result to add an update link between the first user and the second user comprises:
acquiring a first border gateway and a second border gateway from the initial link under the condition that the communication network of the second user is the second satellite network according to the judgment result, wherein the first border gateway is a gateway of the first satellite network, and the second border gateway is a gateway of the second satellite network;
deleting the data tunnel between the first border gateway and the second border gateway, establishing a second sublink between the first user and the second border gateway, and deleting the first sublink.
6. The method according to claim 3, wherein performing a data tunnel change operation on the initial link according to the determination result to add an update link between the first user and the second user comprises:
acquiring a second border gateway and acquiring a first border gateway from the initial link under the condition that the communication network of the second user is not the first satellite network or the second satellite network according to the judgment result, wherein the first border gateway is a gateway of the first satellite network, and the second border gateway is a gateway of the second satellite network;
and additionally arranging a data tunnel between the first border gateway and the second border gateway, establishing a second sublink between the first user and the second border gateway, and deleting the first sublink.
7. A data service switching device in a spatial heterogeneous integrated network is characterized by comprising:
a receiving module, configured to receive a link switching request of a first user, where the first user is a user moving from a coverage area of a first satellite network to a coverage area of a second satellite network;
a link change module, configured to perform a data tunnel change operation on an initial link based on the link switching request, so as to add an update link between the first user and a second user, where the second user is a user performing a data service with the first user, and the initial link is a link when the first user implements the data service based on the first satellite network and the second user;
a switching module, configured to switch the data service from the initial link to the updated link at a target time, where the target time is a time when the first user is in an overlapping coverage area of the first satellite network and the second satellite network;
the receiving module includes:
the system comprises an establishing unit, a first satellite network and a second satellite network, wherein the establishing unit is used for receiving a network access request sent by a first user and establishing a first sublink according to the network access request, and the first sublink is a communication link used for transmitting data between the first user and the first satellite network;
a receiving unit, configured to receive a link switching request sent by a first user based on a first sublink;
the establishing unit comprises:
the system comprises an establishing subunit, a first boundary gateway and a second boundary gateway, wherein the establishing subunit is used for establishing a first sub-link between a first user and the first boundary gateway through an in-network data service module, the in-network data service module is an in-network data service processing module of a first satellite network, and the first boundary gateway is a gateway of the first satellite network;
an allocation subunit, configured to allocate an IP to the first user through the first border gateway;
and the storage subunit is used for associating the ID and the IP of the first user to obtain an association relationship and storing the association relationship.
8. A computer readable medium having non-volatile program code executable by a processor, comprising: the program code causes the processor to execute the method for switching data traffic in a spatial heterogeneous integrated network according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711362755.6A CN107920375B (en) | 2017-12-15 | 2017-12-15 | Data service switching method, device and system in spatial heterogeneous integrated network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711362755.6A CN107920375B (en) | 2017-12-15 | 2017-12-15 | Data service switching method, device and system in spatial heterogeneous integrated network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107920375A CN107920375A (en) | 2018-04-17 |
| CN107920375B true CN107920375B (en) | 2020-07-31 |
Family
ID=61893362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711362755.6A Expired - Fee Related CN107920375B (en) | 2017-12-15 | 2017-12-15 | Data service switching method, device and system in spatial heterogeneous integrated network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107920375B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230246707A1 (en) * | 2020-07-17 | 2023-08-03 | Beijing Xiaomi Mobile Software Co., Ltd. | Data transmission method and apparatus based on satellite communication, and storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000074429A1 (en) * | 1999-06-01 | 2000-12-07 | Motorola Inc. | Method for seamless handover between communications networks |
| CN101001100A (en) * | 2007-01-10 | 2007-07-18 | 北京航空航天大学 | Switch-over protection method of link between satellites |
| CN101299713A (en) * | 2008-03-21 | 2008-11-05 | 哈尔滨工业大学深圳研究生院 | Method for setting multilayer satellite network system route |
| CN101370293A (en) * | 2008-10-15 | 2009-02-18 | 北京邮电大学 | User terminal access control method and system in heterogeneous network |
| CN103237325A (en) * | 2013-05-03 | 2013-08-07 | 北京科技大学 | Switching backup method of satellite network selected based on active neighbour |
| CN104219718A (en) * | 2014-08-27 | 2014-12-17 | 深圳市邦彦信息技术有限公司 | Switching method and device in satellite communication system |
| CN106993319A (en) * | 2017-03-20 | 2017-07-28 | 吕皓 | A kind of algorithm for realizing the switching of GNSS and WIFI systems seamless vertical |
| EP3247149A1 (en) * | 2016-05-20 | 2017-11-22 | Thales | Smooth changeover method with a variety of access stations implemented in a spatial telecommunications system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101102189B (en) * | 2006-07-05 | 2011-06-22 | 华为技术有限公司 | A gateway system and method for implementing multi-media access |
-
2017
- 2017-12-15 CN CN201711362755.6A patent/CN107920375B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000074429A1 (en) * | 1999-06-01 | 2000-12-07 | Motorola Inc. | Method for seamless handover between communications networks |
| CN1310927A (en) * | 1999-06-01 | 2001-08-29 | 摩托罗拉公司 | Method for seamless handover between communications networks |
| CN101001100A (en) * | 2007-01-10 | 2007-07-18 | 北京航空航天大学 | Switch-over protection method of link between satellites |
| CN101299713A (en) * | 2008-03-21 | 2008-11-05 | 哈尔滨工业大学深圳研究生院 | Method for setting multilayer satellite network system route |
| CN101370293A (en) * | 2008-10-15 | 2009-02-18 | 北京邮电大学 | User terminal access control method and system in heterogeneous network |
| CN103237325A (en) * | 2013-05-03 | 2013-08-07 | 北京科技大学 | Switching backup method of satellite network selected based on active neighbour |
| CN104219718A (en) * | 2014-08-27 | 2014-12-17 | 深圳市邦彦信息技术有限公司 | Switching method and device in satellite communication system |
| EP3247149A1 (en) * | 2016-05-20 | 2017-11-22 | Thales | Smooth changeover method with a variety of access stations implemented in a spatial telecommunications system |
| CN106993319A (en) * | 2017-03-20 | 2017-07-28 | 吕皓 | A kind of algorithm for realizing the switching of GNSS and WIFI systems seamless vertical |
Non-Patent Citations (3)
| Title |
|---|
| "低轨卫星移动通信系统中的切换策略研究";尚颖;《中国优秀硕士学位论文全文数据库》;20150815;正文第2.1-2.2节 * |
| "天地一体化信息网络安全保障技术研究进展及发展趋势";李凤华;《通信学报》;20161220;全文 * |
| 我国天地一体化综合信息网络构想;闵士权;《卫星应用》;20160125;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107920375A (en) | 2018-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20190335365A1 (en) | Network Handover Method and Related Device | |
| CN110351109B (en) | Topology information management method, device, system, storage medium and electronic device | |
| EP3547747A1 (en) | Method of distributing uplink data flow between different access networks in 5g communication system and user equipment using the same | |
| US20200015131A1 (en) | Communication method and communications device | |
| CN113596191B (en) | Data processing method, network element equipment and readable storage medium | |
| US20170238215A1 (en) | Mobility management method, apparatus, and system | |
| EP2765821A1 (en) | Multi-mode terminal service switchover method and device | |
| KR20210136761A (en) | Method and apparatus for manging information related to edge computing service | |
| US10945180B2 (en) | Mobility management method, apparatus, and system | |
| CN111480354A (en) | Data routing in a communication system | |
| KR20190018235A (en) | METHOD FOR REPORTING UE ACCESS TYPE CHANGE TO 3rd PARTY APPLICATION SERVER | |
| US10299181B2 (en) | Method and apparatus for configuring disconnected TCP connection in communication system, handover support method and apparatus therefor | |
| US9949309B2 (en) | Methods, computer readable mediums, and apparatuses for providing communication to a mobile device using virtual connections | |
| US20210352015A1 (en) | Method and device for hosting application by access node | |
| US10158698B2 (en) | Method and device for providing content in mobile communication system | |
| CN107920375B (en) | Data service switching method, device and system in spatial heterogeneous integrated network | |
| CN109314893B (en) | Switching method and device | |
| CN102571963A (en) | Content delivery method, device and access network equipment | |
| CN102833791A (en) | Packet domain content caching system for radio network controller (RNC) and implementing method thereof | |
| KR20190018376A (en) | A method of handling anchor upf for local offloading in 5g cellular network | |
| CN108124293B (en) | Voice service switching method and device in spatial heterogeneous integrated network | |
| KR20210055537A (en) | Method and apparatus for traffic steering for local processing | |
| KR20100068784A (en) | Handover server and handover method over multi-interface environment | |
| JP6468560B2 (en) | Wireless communication system and control method therefor, and communication control program | |
| CN111836402A (en) | Data transmission method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200731 Termination date: 20201215 |