CN114025033B - Interconnection and intercommunication method for IP services of satellite multi-network system - Google Patents
Interconnection and intercommunication method for IP services of satellite multi-network system Download PDFInfo
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- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
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Abstract
The invention discloses a satellite multi-network system IP service interconnection and intercommunication method. It relates to satellite network interconnection and intercommunication technology in the satellite communication field. The invention relates to an IP service interconnection and intercommunication method suitable for simultaneous use of various heterogeneous satellite network systems or channels, which aims at the problem that when a satellite user comprehensively uses various satellite communication systems or satellite networks, all network systems are interconnected together through a satellite network, a gateway station and a ground network to form a multi-stage multi-ring multi-path network. The method can effectively control the diffusion of the IP routing information and the forwarding of the IP data, prevent the routing loop and the routing oscillation from being caused, and avoid the asymmetry of the bidirectional communication path.
Description
Technical Field
The invention relates to a satellite network interconnection and intercommunication technology in the field of satellite communication, in particular to a satellite multi-network system IP service interconnection and intercommunication method.
Background
When a satellite user comprehensively uses a plurality of satellite communication systems or satellite networks, the routing protocols of each satellite network system are different, and comprise static routing and dynamic routing protocols such as RIP, OSPF and the like. The user station and the gateway station only operate the standard routing protocols to interact with each satellite network, and the interconnection and the intercommunication of a plurality of satellite network systems cannot be effectively finished, because the user can use a plurality of network system channels, each network system has a plurality of landing stations nationwide, each station has an outlet with a ground network, each network system is interwoven together through the satellite network, the gateway station and the ground network to form a multi-level multi-ring multi-path interconnection and intercommunication network, a plurality of loop topologies and the like exist among the satellite network system, the gateway station and the ground network in a heterogeneous network formed by the plurality of satellite network systems, and the standard intra-domain routing protocols can cause routing loops and routing oscillation, so that the system cannot work normally.
In this case, the prior art generally uses static routing and BGP interdomain routing protocols to effectively control the diffusion of routing information, and prevent the formation of routing loops and asymmetric routes.
The method can prevent the free diffusion and redistribution operation of the routing information among dynamic routing protocols by adopting a static routing mode, and when the IP data needs to be routed and forwarded among a plurality of network systems, the network management system carries out planning and pre-configuration and opens a forwarding path between a source and a destination. The method can prevent the routing from being diffused out of order and solve the problems of routing loops and asymmetric paths, but the method requires the network manager to acquire all user routing information and all network states, brings huge workload to a network management system, requires the satellite network to be capable of being pre-planned at the beginning of construction, has many manual interventions, long user intercommunication opening time and complicated configuration change, and cannot flexibly meet the dynamic internetwork networking requirements of users.
BGP is an inter-domain routing protocol, can control the distribution of inter-domain routing information, and has a rich routing control policy. Unlike the intra-domain routing protocol RIP/OSPF, BGP enables route optimization, avoids routing loops, delivers routes more efficiently, and maintains a large amount of routing information. BGP provides rich routing strategies, can flexibly select routes and can guide neighbors to publish the routes according to the strategies. BGP also provides route aggregation and route attenuation functions for preventing route oscillation, effectively improving the stability of the network. When the BGP protocol is used, each satellite network and each ground network are divided into different autonomous domains, and a BGP routing strategy is adopted among the autonomous domains for routing control, so that a routing loop can be prevented from being generated. However, the BGP protocol must support the BGP protocol, which may not be provided in an actual interworking environment, and since BGP is a ground standard protocol and there is no station information but only IP network segment information, it may cause the routing policy to be differentiated solely by IP, which is inconvenient to operate in actual use and still requires human intervention. Since BGP has no home station concept, it becomes very difficult to use the BGP protocol for routing control in complex networks formed by a plurality of mesh-topology satellite networks.
Disclosure of Invention
The invention aims to solve the problem of IP service interconnection and intercommunication when a plurality of satellite network systems are integrated in the background technology. On the basis of the prior technical background, the method for interconnecting and intercommunicating the IP services of the satellite multi-network system is suitable for interconnecting and intercommunicating the IP services when a plurality of heterogeneous satellite network systems or channels are used simultaneously, realizes the star-shaped ordered diffusion of user routes in a ground network by distributing home gateway stations for user stations, realizes the segment-by-segment forwarding of the IP services and the avoidance of data plane loops by encapsulating application layer tunnels, and realizes the loop-free diffusion of the user routes and the ground network routes by the global control of interconnection and intercommunicating. The method can effectively control the diffusion of the IP routing information and the forwarding of the IP data, prevent the routing loop and the routing oscillation from being caused, and avoid the asymmetry of the bidirectional communication path.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
a satellite multi-network system IP service interconnection and intercommunication method is realized by an access adaptation module of a user station, a data gateway module of a gateway station and an interconnection and intercommunication control module, and comprises the following steps:
(1) after the user station accesses the network, the interconnection control module sends information of an attributive gateway station of the user station to the access adaptation module;
(2) after the access adaptation module and the data gateway module acquire the routing information of the user network, reporting the routing information to the interconnection control module; the access adaptation module reports the interface IP address of each network system channel to the interconnection and intercommunication control module; the data gateway module reports the interface IP address of each network system channel and the ground side interface IP address to the interconnection and intercommunication control module; the interconnection control module generates an attribution route from the information reported by the access adaptation module and the data gateway module and the attribution gateway station information, and the attribution route is locally stored and distributed to the data gateway module; the data gateway module reports the routing information of the ground network to the interconnection and intercommunication control module after acquiring the routing information of the ground network, and the interconnection and intercommunication control module performs duplication removal and filtration on the routing information of the ground network reported by the data gateway modules and actively sends the attribution routing and the routing information of the ground network to the access adaptation module or stores the attribution routing and the routing information of the ground network locally for the access adaptation module to query as required;
(3) after receiving the attribution route sent by the interconnection and intercommunication control module, the data gateway module judges whether the route information belongs to the data gateway module according to the attribution gateway station information of the attribution route, if so, the attribution route is redistributed to the ground network to the outside, and if not, the data gateway module refuses to redistribute to the inside when receiving the route information from the ground network;
(4) when a source user station and a target user station communicate through the same satellite network system, an access adaptation module of the source user station and an access adaptation module of the target user station use an issued or inquired home route to carry out application layer tunnel encapsulation on IP services, and a target IP address of a tunnel is an interface IP address of a network system channel of a communication opposite terminal access adaptation module; when a source user station and a target user station can not communicate through the same satellite network system, an access adaptation module of the source user station and an access adaptation module of the target user station use an issued or inquired home router to perform application layer tunnel encapsulation on IP services, and send the IP services to data gateway modules of respective home gateway stations through a selected network system channel, and after the data gateway modules of the home gateway stations are decapsulated, the issued home router is used to perform application layer tunnel encapsulation on the IP services and transmit the IP services through a ground network;
(5) when the user station communicates with the ground network user through the data gateway module of the user station attributive gateway station, the IP data between the access adaptation module of the user station and the data gateway module of the user station attributive gateway station carries out application layer tunnel encapsulation according to attributive gateway station information.
The control mode of the interconnection and intercommunication control module is logic distributed or logic centralized; the interconnection control module, the data gateway module and the access adaptation module are all accessible by a network layer.
Wherein, the attribution gateway station of the user station in the step (1) is divided based on management, geography or resources, and after the attribution gateway station of the user station is changed, the interconnection and intercommunication control module needs to update the attribution gateway station information of the user station to the access adaptation module; the information of the home gateway station comprises a station number of the home gateway station, the type number of each network system channel of the home gateway station, and the interface IP address of the data gateway module of the home gateway station and each network system channel.
The fact that the source subscriber station and the destination subscriber station cannot communicate through the same satellite network system in the step (4) means that the source subscriber station and the destination subscriber station do not have the same network system or have the same network system, but do not have sufficient channel resources or do not meet the access transmission requirements of the service under the same network system.
Wherein, in the step (4), when the home gateway station of the source user station is the same as the home gateway station of the target user station, the data gateway module of the home gateway station sends the IP service to the target user station through the selected network system or channel on the satellite side by directly using the application layer tunnel after receiving the IP service of the source user station; when the attribution gateway station of the source user station is different from the attribution gateway station of the target user station, the data gateway module of the attribution gateway station of the source user station directly uses an application layer tunnel to send the IP service to the target user station through a selected network system or channel at the satellite side by specially setting the intercommunication strategy of the data gateway module of the attribution gateway station of the source user station;
when the home gateway station of the source user station is different from the home gateway station of the destination user station, the access adaptation module of the source user station uses the issued or inquired home route to perform application layer tunnel encapsulation on the IP service, and sending the IP service to the data gateway module of the gateway station to which the source subscriber station belongs through the selected network system channel, decapsulating the IP service by the data gateway module of the gateway station to which the source subscriber station belongs, and performing application layer tunnel encapsulation on the IP service by using the issued home route, the data gateway module is sent to the gateway station to which the target user station belongs through the ground network, after the data gateway module of the gateway station to which the target user station belongs decapsulates the IP service, and the IP service is subjected to application layer tunnel encapsulation by using the issued home router and is sent to the destination user station through the selected network system channel, and the destination user station carries out decapsulation on the received IP service and forwards the decapsulated IP service to a local user network.
Wherein, the network layer source and destination IP addresses of the application layer tunnel used between the access adaptation module and the data gateway module in the step (4) and the step (5) are respectively the network system channel interface IP addresses of the access adaptation module and the data gateway module, and the network system channel interface is determined by the selected network system channel; the network layer source and destination IP addresses of the application layer tunnel used between the data gateway modules are the ground side interface IP addresses of the two data gateway modules, respectively.
When the local network user sends the IP service to the user station in the step (5), the IP service is firstly routed to a data gateway module of a gateway station to which the user station belongs, the data gateway module of the gateway station uses an application layer tunnel to send the IP service to an access adaptation module of the user station through a selected network system or channel, and after the access adaptation module of the user station carries out application layer decapsulation, the IP service data is forwarded to a user network through an IP route;
when the user station sends IP service to the ground network user, the access adaptation module of the user station uses the issued or inquired ground network routing information and the attributive gateway station information to carry out application layer tunnel encapsulation on the IP service, the IP service is sent to the data gateway module of the user station attributive gateway station through the selected network system channel, and after the data gateway module of the attributive gateway station carries out application layer decapsulation on the IP service, the IP service data is forwarded to the ground network through an IP route.
The user station which is not provided with the access adaptation module reports the routing information of the user station to the gateway station by a routing interaction method in the network system, and configures a default route pointing to the home gateway station for the user station by a static configuration or a dynamic release mode of the home gateway station; when the user station without the access adaptation module is communicated with other user stations of different network systems or with users of the ground network, the user station without the access adaptation module firstly sends the IP service to the attribution gateway station for forwarding through the configured default route.
Wherein, the following processes are also included before the step (1):
the access adaptation module of the user station adopts a routing multi-process technology to operate a routing protocol which is the same as that of the corresponding network system channel on each interface of the network system channel, interacts routing information with each network system, learns the routing information in each network system, but does not redistribute the routing protocols of each network system channel, and the routing protocols of each network system channel are redistributed with the routing protocol of the user side interface of the access adaptation module;
the data gateway module of the gateway station adopts a routing multi-process technology to operate a routing protocol which is the same as that of the corresponding network system channel on each interface of the network system channel, interacts routing information with each network system, learns the routing information in each network system, but does not redistribute the routing protocols of each network system channel, the routing protocols of each network system channel and the routing protocols of the user side interface of the data gateway module redistribute mutually, and the routing protocols of each network system channel only redistribute to the routing protocols of the ground side interface of the data gateway module.
The user station without the access adaptation module comprises a single-network system channel user station without the access adaptation module and a multi-network system channel user station without the access adaptation module, wherein the single-network system channel user station means that the user can only use one network system channel for communication at the same time, the multi-network system channel user station means that the user can use two or more network system channels for communication at the same time, and the multi-network system channel user station without the access adaptation module logically considers the combination of the single-network system channel user stations without the access adaptation module.
The invention effectively solves the problem of interconnection and intercommunication of the IP services of the satellite multi-network system, and has the following advantages:
1. the dynamic loop-free diffusion of the subscriber station routing information outgoing network is realized, and the problem of asymmetrical subscriber station outgoing network routing is solved. The method carries out route diffusion to the ground network through the home gateway station, plans the route diffusion among the network systems into a star-shaped framework, avoids the formation of route loops among the satellite network systems from a network topology framework, and solves the problem of inconsistent two-way paths of other network system users accessing the satellite users. The home gateway station becomes an anchor point for communication with other networks by the subscriber station that belongs to itself.
2. The method realizes loop-free diffusion of user routing and ground network routing, and realizes satellite network routing loop avoidance by filtering satellite network routing diffused back through a ground network and ground network routing de-duplication and loop avoidance by filtering ground network routing diffused through a plurality of gateway stations through global control of interconnection and intercommunication.
3. The loop-free control of the IP service of the data plane is realized, and the forwarding path can be flexibly defined through the tunnel encapsulation of the application layer, so that the section-by-section forwarding of the IP service and the loop avoidance of the data plane are realized;
drawings
FIG. 1 is a schematic diagram of the system architecture and application of the present invention.
Detailed Description
Fig. 1 illustrates a scenario of interconnection and interworking of satellite multi-network system IP services. The user station 1 and the user station 2 adopt various satellite network system channels to intercommunicate IP services. Subscriber station 1 and subscriber station 2 each have 4 satellite system channels available. The home gateway station of user station 1 is configured as gateway station 1 and the home gateway station of user station 2 is configured as gateway station 2.
An access adaptation module (SCPE) of the subscriber station 1 reports the user routing information of the subscriber station 1 and the interface IP addresses of the network system channels to an interconnection and interworking control module (ICC), and the SCPE of the subscriber station 2 reports the user routing information of the subscriber station 2 and the interface IP addresses of the network system channels to the ICC.
A data gateway module (DGW) of the gateway station 1 reports an interface IP address and a ground side interface IP address of each network system channel, the acquired user routing information and the ground network routing information to the ICC; the DGW of the gateway station 2 reports the interface IP address of each network system channel, the ground-side interface IP address, and the acquired ground network routing information to the ICC.
The ICC generates a home route by the user network route information and the home gateway station information reported by the SCPE and the DGW, and stores and distributes the home route to the DGW and the SCPE. ICC carries out duplication elimination and filtration to the reported ground network routing information, and distributes the routing information to the subscriber station SCPE without issuing to other DGWs.
When the user station 1 and the user station 2 communicate with each other, it knows that it can not communicate with the user station 2 in the same network system, then the user station 1 selects the network system channel falling to the home gateway station 1, the SCPE of the user station 1 encapsulates the service in the application layer tunnel, the network layer destination IP address of the tunnel is encapsulated as the IP address corresponding to the DGW of the gateway station 1, the encapsulated data is forwarded in the selected satellite network system, after reaching the DGW of the gateway station 1, it is decapsulated, after searching the IP route, the DGW of the gateway station 1 knows that the home gateway station of the user station 2 is the gateway station 2, then the service is encapsulated in the application layer tunnel, the network layer destination IP address of the tunnel is encapsulated as the IP address corresponding to the DGW of the gateway station 2, the encapsulated data is forwarded in the ground network, after reaching the DGW of the gateway station 2, it is decapsulated, after searching the IP route, determining a network system channel used by the user station 2, then encapsulating the service in an application layer tunnel, encapsulating a network layer destination IP address of the tunnel into an IP address corresponding to the SCPE of the user station 2, performing routing forwarding on the encapsulated data in the selected satellite network system channel, performing decapsulation after the encapsulated data reaches the SCPE of the user station 2, and forwarding the routing to the user network of the user station 2.
Referring to fig. 1, an embodiment of the present invention comprises the following steps:
a satellite multi-network system IP service interconnection and intercommunication method is realized by entities such as access adaptation (SCPE) of a user station, Data Gateway (DGW) of a gateway station, interconnection and intercommunication control module (ICC) and the like, and the control mode of the interconnection and intercommunication control module is logic distributed or logic centralized; the interconnection control module, the data gateway module and the access adaptation module are all accessible by a network layer. The method specifically comprises the following steps:
the access adaptation module of the user station adopts a routing multi-process technology to operate a routing protocol which is the same as that of the corresponding network system channel on each interface of the network system channel, interacts routing information with each network system, learns the routing information in each network system, but does not redistribute the routing protocols of each network system channel, and the routing protocols of each network system channel are redistributed with the routing protocol of the user side interface of the access adaptation module; the data gateway module of the gateway station adopts a routing multi-process technology to operate a routing protocol which is the same as that of the corresponding network system channel on each interface of the network system channel, interacts routing information with each network system, learns the routing information in each network system, but does not redistribute the routing protocols of each network system channel, the routing protocols of each network system channel and the routing protocols of the user side interface of the data gateway module redistribute mutually, and the routing protocols of each network system channel only redistribute to the routing protocols of the ground side interface of the data gateway module.
(1) After the user station accesses the network, the interconnection control module sends information of an attributive gateway station of the user station to the access adaptation module; the home gateway station of the user station is divided based on management, geography or resources, and after the home gateway station of the user station is changed, the interconnection and intercommunication control module needs to update the home gateway station information of the user station to the access adaptation module; the information of the home gateway station comprises a station number of the home gateway station, the type number of each network system channel of the home gateway station, and the interface IP address of the data gateway module of the home gateway station and each network system channel.
(2) After the access adaptation module and the data gateway module acquire the routing information of the user network, reporting the routing information to the interconnection control module; the access adaptation module reports the interface IP address of each network system channel to the interconnection control module; the data gateway module reports the interface IP address of each network system channel and the ground side interface IP address to the interconnection and intercommunication control module; the interconnection control module generates an attribution route from the information reported by the access adaptation module and the data gateway module and the attribution gateway station information, and the attribution route is locally stored and distributed to the data gateway module; the data gateway module reports the routing information of the ground network to the interconnection and intercommunication control module after acquiring the routing information of the ground network, and the interconnection and intercommunication control module performs duplication removal and filtration on the routing information of the ground network reported by the data gateway modules and actively sends the attribution routing and the routing information of the ground network to the access adaptation module or stores the attribution routing and the routing information of the ground network locally for the access adaptation module to query as required;
(3) after receiving the attribution route sent by the interconnection and intercommunication control module, the data gateway module judges whether the route information belongs to the data gateway module according to the attribution gateway station information of the attribution route, if so, the attribution route is redistributed to the ground network to the outside, and if not, the data gateway module refuses to redistribute to the inside when receiving the route information from the ground network;
(4) when a source user station and a target user station communicate through the same satellite network system, an access adaptation module of the source user station and an access adaptation module of the target user station use an issued or inquired home route to carry out application layer tunnel encapsulation on IP services, and a target IP address of a tunnel is an interface IP address of a network system channel of a communication opposite terminal access adaptation module; when a source user station and a target user station can not communicate through the same satellite network system, an access adaptation module of the source user station and an access adaptation module of the target user station use an issued or inquired home router to perform application layer tunnel encapsulation on IP services, and send the IP services to data gateway modules of respective home gateway stations through a selected network system channel, and after the data gateway modules of the home gateway stations are decapsulated, the issued home router is used to perform application layer tunnel encapsulation on the IP services and transmit the IP services through a ground network;
the specific process is as follows: when the home gateway station of the source user station is the same as the home gateway station of the target user station, the data gateway module of the home gateway station directly uses the application layer tunnel to send the IP service to the target user station through the selected network system or channel at the satellite side after receiving the IP service of the source user station; when the attributive gateway station of the source user station is different from the attributive gateway station of the target user station, the data gateway module of the attributive gateway station of the source user station directly uses an application layer tunnel to send the IP service to the target user station through a selected network system or channel at the satellite side by specially setting the intercommunication strategy of the data gateway module of the attributive gateway station of the source user station;
when the home gateway station of the source user station is different from the home gateway station of the destination user station, the access adaptation module of the source user station uses the issued or inquired home route to perform application layer tunnel encapsulation on the IP service, and sending the IP service to the data gateway module of the gateway station to which the source subscriber station belongs through the selected network system channel, decapsulating the IP service by the data gateway module of the gateway station to which the source subscriber station belongs, and performing application layer tunnel encapsulation on the IP service by using the issued home route, the IP service is transmitted to a data gateway module of a gateway station to which the target user station belongs through a ground network, after the IP service is unpackaged by the data gateway module of the gateway station to which the target user station belongs, and the IP service is subjected to application layer tunnel encapsulation by using the issued home router and is sent to the destination user station through the selected network system channel, and the destination user station carries out decapsulation on the received IP service and forwards the decapsulated IP service to a local user network. The source subscriber station and the destination subscriber station cannot communicate through the same satellite network system means that the source subscriber station and the destination subscriber station do not have the same network system or have the same network system, but do not have sufficient channel resources or do not meet the access transmission requirements of services under the same network system.
(5) When the user station communicates with the ground network user through the data gateway module of the user station attributive gateway station, the IP data between the access adaptation module of the user station and the data gateway module of the user station attributive gateway station carries out application layer tunnel encapsulation according to attributive gateway station information.
The specific process is as follows: when a ground network user sends IP service to a user station, the IP service is firstly routed to a data gateway module of a gateway station to which the user station belongs, the data gateway module of the gateway station uses an application layer tunnel to send the IP service to an access adaptation module of the user station through a selected network system or channel, and after the access adaptation module of the user station carries out application layer decapsulation, the IP service data is forwarded to a user network through an IP route;
when the user station sends IP service to the user of the ground network, the access adaptation module of the user station uses the issued or inquired routing information of the ground network and the information of the attributive gateway station to carry out application layer tunnel encapsulation on the IP service, the IP service is sent to the data gateway module of the attributive gateway station of the user station through the selected network system channel, after the data gateway module of the attributive gateway station carries out application layer decapsulation on the IP service, the IP service data is forwarded to the ground network through the IP route.
The network layer source and destination IP addresses of the application layer tunnel used between the access adaptation module and the data gateway module are respectively the network system channel interface IP addresses of the access adaptation module and the data gateway module, and the network system channel interface is determined by the selected network system channel; the network layer source and destination IP addresses of the application layer tunnel used between the data gateway modules are the ground side interface IP addresses of the two data gateway modules, respectively.
The user station which is not provided with the access adaptation module reports the routing information of the user station to the gateway station by a routing interaction method in the network system, and configures a default route pointing to the home gateway station for the user station by a static configuration or a dynamic release mode of the home gateway station; when the user station without the access adaptation module is communicated with other user stations of different network systems or is communicated with users of a ground network, the user station without the access adaptation module firstly sends the IP service to the attributive gateway station for forwarding through the configured default route.
The user station without the access adaptation module is specifically composed of a single-network system channel user station without the access adaptation module and a multi-network system channel user station without the access adaptation module, the single-network system channel user station means that the user can only use one network system channel for communication at the same time, the multi-network system channel user station means that the user can use two or more network system channels for communication at the same time, and the multi-network system channel user station without the access adaptation module is logically considered as a combination of the single-network system channel user stations without the access adaptation module.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A satellite multi-network system IP service interconnection and intercommunication method is realized by an access adaptation module of a user station, a data gateway module of a gateway station and an interconnection and intercommunication control module, and is characterized by comprising the following steps:
(1) after the user station accesses the network, the interconnection control module sends information of an attributive gateway station of the user station to the access adaptation module;
(2) after the access adaptation module and the data gateway module acquire the routing information of the user network, reporting the routing information to the interconnection control module; the access adaptation module reports the interface IP address of each network system channel to the interconnection control module; the data gateway module reports the interface IP address of each network system channel and the ground side interface IP address to the interconnection and intercommunication control module; the interconnection control module generates an attribution route from the information reported by the access adaptation module and the data gateway module and the attribution gateway station information, and the attribution route is locally stored and distributed to the data gateway module; the data gateway module reports the routing information of the ground network to the interconnection and intercommunication control module after acquiring the routing information of the ground network, and the interconnection and intercommunication control module performs duplication removal and filtration on the routing information of the ground network reported by the data gateway modules and actively sends the attribution routing and the routing information of the ground network to the access adaptation module or stores the attribution routing and the routing information of the ground network locally for the access adaptation module to query as required;
(3) after receiving the attribution route sent by the interconnection and intercommunication control module, the data gateway module judges whether the route information belongs to the data gateway module according to the attribution gateway station information of the attribution route, if so, the attribution route is redistributed to the ground network to the outside, and if not, the data gateway module refuses to redistribute to the inside when receiving the route information from the ground network;
(4) when a source user station and a target user station communicate through the same satellite network system, an access adaptation module of the source user station and an access adaptation module of the target user station use an issued or inquired home route to carry out application layer tunnel encapsulation on IP services, and a target IP address of a tunnel is an interface IP address of a network system channel of a communication opposite terminal access adaptation module; when a source user station and a destination user station can not communicate through the same satellite network system, an access adaptation module of the source user station and an access adaptation module of the destination user station use a distributed or inquired home router to carry out application layer tunnel encapsulation on IP services, and send the IP services to data gateway modules of respective home gateway stations through a selected network system channel;
(5) when the user station communicates with the ground network user through the data gateway module of the user station attributive gateway station, the IP data between the access adaptation module of the user station and the data gateway module of the user station attributive gateway station carries out application layer tunnel encapsulation according to attributive gateway station information.
2. The method for interconnecting and interworking with IP services of multiple networks of a satellite according to claim 1, wherein the control manner of the interconnection and interworking control module is logically distributed or logically centralized; the interconnection control module, the data gateway module and the access adaptation module are all accessible by a network layer.
3. The method according to claim 1, wherein in step (1), the home gateway station of the subscriber station is divided based on management, geography or resources, and after the home gateway station of the subscriber station changes, the interconnection control module needs to update the home gateway station information of the subscriber station to the access adaptation module; the information of the home gateway station comprises a station number of the home gateway station, the type number of each network system channel of the home gateway station, and the interface IP address of the data gateway module of the home gateway station and each network system channel.
4. The method as claimed in claim 1, wherein the failure of the source subscriber station and the destination subscriber station to communicate via the same satellite network system in step (4) means that the source subscriber station and the destination subscriber station do not have the same network system or have the same network system, but do not have sufficient channel resources or do not meet the access transmission requirement of the service.
5. The method according to claim 1, wherein in step (4), when the home gateway station of the source subscriber station is the same as the home gateway station of the destination subscriber station, the data gateway module of the home gateway station will directly use the application layer tunnel to send the IP service to the destination subscriber station through the selected network system or channel on the satellite side after receiving the IP service of the source subscriber station; when the attribution gateway station of the source user station is different from the attribution gateway station of the target user station, the data gateway module of the attribution gateway station of the source user station directly uses an application layer tunnel to send the IP service to the target user station through a selected network system or channel at the satellite side by specially setting the intercommunication strategy of the data gateway module of the attribution gateway station of the source user station;
when the home gateway station of the source user station is different from the home gateway station of the destination user station, the access adaptation module of the source user station uses the issued or inquired home route to perform application layer tunnel encapsulation on the IP service, and sending the IP service to the data gateway module of the gateway station to which the source subscriber station belongs through the selected network system channel, decapsulating the IP service by the data gateway module of the gateway station to which the source subscriber station belongs, and performing application layer tunnel encapsulation on the IP service by using the issued home route, the data gateway module is sent to the gateway station to which the target user station belongs through the ground network, after the data gateway module of the gateway station to which the target user station belongs decapsulates the IP service, and the IP service is subjected to application layer tunnel encapsulation by using the issued home router and is sent to a target user station through a selected network system channel, and the target user station carries out decapsulation on the received IP service and forwards the decapsulated IP service to a local user network.
6. The method according to claim 1, wherein the network layer source and destination IP addresses of the application layer tunnel used between the access adaptation module and the data gateway module in step (4) and step (5) are network system channel interface IP addresses of the access adaptation module and the data gateway module, respectively, and the network system channel interface is determined by the selected network system channel; the network layer source and destination IP addresses of the application layer tunnel used between the data gateway modules are the ground side interface IP addresses of the two data gateway modules, respectively.
7. The method according to claim 1, wherein when the local network user sends the IP service to the subscriber station in step (5), the IP service is first routed to the data gateway module of the home gateway station of the subscriber station, the data gateway module of the home gateway station uses an application layer tunnel to send the IP service to the access adaptation module of the subscriber station through the selected network or channel, and after the access adaptation module of the subscriber station performs application layer decapsulation, the IP service data is forwarded to the subscriber network through the IP route;
when the user station sends IP service to the ground network user, the access adaptation module of the user station uses the issued or inquired ground network routing information and the attributive gateway station information to carry out application layer tunnel encapsulation on the IP service, the IP service is sent to the data gateway module of the user station attributive gateway station through the selected network system channel, and after the data gateway module of the attributive gateway station carries out application layer decapsulation on the IP service, the IP service data is forwarded to the ground network through an IP route.
8. The method according to claim 1, wherein the subscriber station without access adaptation module reports the subscriber station routing information to the gateway station by a routing interaction method in the network, and configures a default route pointing to the home gateway station for the subscriber station by static configuration or dynamic release of the home gateway station; when the user station without the access adaptation module is communicated with other user stations of different network systems or with users of the ground network, the user station without the access adaptation module firstly sends the IP service to the attribution gateway station for forwarding through the configured default route.
9. The method for interconnecting and interworking IP services of a satellite multi-network system according to claim 1, wherein step (1) further comprises the following steps:
the access adaptation module of the user station adopts a routing multi-process technology to operate a routing protocol which is the same as that of the corresponding network system channel on each interface of the network system channel, interacts routing information with each network system, learns the routing information in each network system, but does not redistribute the routing protocols of each network system channel, and the routing protocols of each network system channel are redistributed with the routing protocol of the user side interface of the access adaptation module;
the data gateway module of the gateway station adopts a routing multi-process technology to operate a routing protocol which is the same as that of the corresponding network system channel on each interface of the network system channel, interacts routing information with each network system, learns the routing information in each network system, but does not redistribute the routing protocols of each network system channel, the routing protocols of each network system channel and the routing protocols of the user side interface of the data gateway module redistribute mutually, and the routing protocols of each network system channel only redistribute to the routing protocols of the ground side interface of the data gateway module.
10. The method as claimed in claim 8, wherein the subscriber station without access adaptation module deployment includes a single network channel subscriber station without access adaptation module deployment and a multi-network channel subscriber station without access adaptation module deployment, the single network channel subscriber station means that the subscriber can only use one network channel for communication at the same time, the multi-network channel subscriber station means that the subscriber can use two or more network channels for communication at the same time, and the multi-network channel subscriber station without access adaptation module deployment logically considers a combination of the single network channel subscriber stations without access adaptation module deployment.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106211220A (en) * | 2016-06-23 | 2016-12-07 | 中国空间技术研究院 | A kind of isomery interconnection satellite broadband communication semi-physical simulation checking system and method |
| US9906291B1 (en) * | 2015-02-27 | 2018-02-27 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Heterogeneous spacecraft networks |
| CN107979531A (en) * | 2017-12-15 | 2018-05-01 | 中国人民解放军32039部队 | Spatial isomerism network integration network-building method and system |
| CN112312486A (en) * | 2019-07-25 | 2021-02-02 | 大唐移动通信设备有限公司 | Information processing method, gateway station, device and medium during switching of feeder link |
-
2021
- 2021-11-11 CN CN202111332645.1A patent/CN114025033B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9906291B1 (en) * | 2015-02-27 | 2018-02-27 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Heterogeneous spacecraft networks |
| CN106211220A (en) * | 2016-06-23 | 2016-12-07 | 中国空间技术研究院 | A kind of isomery interconnection satellite broadband communication semi-physical simulation checking system and method |
| CN107979531A (en) * | 2017-12-15 | 2018-05-01 | 中国人民解放军32039部队 | Spatial isomerism network integration network-building method and system |
| CN112312486A (en) * | 2019-07-25 | 2021-02-02 | 大唐移动通信设备有限公司 | Information processing method, gateway station, device and medium during switching of feeder link |
Non-Patent Citations (4)
| Title |
|---|
| 一体化卫星通信网络管理平台设计;张永池等;《无线电通信技术》;20181225(第01期);全文 * |
| 低轨卫星通信***网络设计;徐超男等;《通信技术》;20170910(第09期);全文 * |
| 基于IMS的卫星通信多网***一接入技术研究;王金海;《无线电通信技术》;20150308(第03期);全文 * |
| 天地一体化网络协议研究;张亚生等;《无线电工程》;20180227(第03期);全文 * |
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