CN114389676A - Satellite interconnection cluster network communication system and communication method - Google Patents
Satellite interconnection cluster network communication system and communication method Download PDFInfo
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- CN114389676A CN114389676A CN202210002193.9A CN202210002193A CN114389676A CN 114389676 A CN114389676 A CN 114389676A CN 202210002193 A CN202210002193 A CN 202210002193A CN 114389676 A CN114389676 A CN 114389676A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18521—Systems of inter linked satellites, i.e. inter satellite service
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18517—Transmission equipment in earth stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
A satellite interconnection cluster network communication system and communication method relates to the communication technical field, the system comprises a core network, a cluster dispatching desk, a plurality of gateway stations, a plurality of communication terminals and a star link composed of a plurality of communication satellites, wherein the core network is provided with a core network control surface unit, a cluster control unit and a core cluster service function unit; the gateway station is provided with a local cluster service functional unit, and the communication satellite in the star chain is provided with an on-satellite cluster service functional unit and an on-satellite cluster service switching unit. The system provided by the invention can be used for commanding and dispatching in emergency scenes.
Description
Technical Field
The invention relates to a communication technology, in particular to a satellite interconnection cluster network communication system and a communication method.
Background
The traditional high-orbit satellite has low communication bandwidth and speed and large time delay, is usually used as a wide-area air wireless transmission channel, and also usually needs a special ground signal transceiver for signal switching; after low earth orbit satellite communication appears, the number of satellites is large, the orbit distance is close to the ground, the transmission bandwidth and the time delay performance are obviously improved, a satellite internet is constructed by using the advanced technology of mobile communication networking, and the terminal tends to be miniaturized and can be held by hands.
Satellite communication is always an important means of emergency communication, and when a disaster occurs and a ground communication facility is damaged and unavailable, satellite telephone and data transmission play a key role, but the conventional satellite communication system cannot realize cluster communication and cannot be used for command and scheduling of emergency scenes (such as earthquake disaster rescue and the like).
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a satellite interconnection cluster network communication system and a communication method, which can realize satellite cluster communication and enable the satellite communication to be used for emergency scene command and scheduling.
In order to solve the above technical problem, the satellite interconnection trunking network communication system provided by the present invention comprises a core network, a star link formed by a plurality of communication satellites, a plurality of gateway stations for connecting each communication satellite with the core network, and a plurality of communication terminals capable of connecting the communication satellites, wherein each gateway station is interconnected with the core network in a communication manner, and a core network control plane unit is arranged in the core network, and is characterized in that: the system also comprises a cluster dispatching desk;
the core network is also provided with a cluster control unit and a core cluster service functional unit;
the cluster dispatching console is in logical communication with the cluster control unit and carries out dispatching management on cluster groups through the cluster control unit and the core network control surface unit;
the cluster control unit is communicated with the core network control plane unit in a logic mode and is used for determining a link mode, determining a unit for bearing cluster services, sending a cluster communication group, a bearing link construction instruction, a bearing link release instruction and route organization information, and receiving and managing a cluster call through the core network control plane unit;
the core cluster service function unit is logically communicated with the cluster control unit and is logically communicated with a plurality of gateway stations, and acquires a cluster communication group, a bearing link construction instruction, a bearing link release instruction and route organization information through the cluster control unit and receives cluster communication services accessed between communication terminals of different gateway stations through the gateway stations which are logically communicated with the core cluster service function unit;
the gateway station is provided with a local cluster service function unit which is logically communicated with a core network control surface unit, and the local cluster service function unit acquires a cluster communication group, a bearing link construction instruction, a bearing link release instruction and route organization information which are issued by the cluster control unit through the core network control surface unit and carries cluster communication services among communication terminals accessed to the local gateway station through the local gateway station;
in the star chain, at least one communication satellite is provided with an on-satellite cluster service functional unit, and at least one communication satellite is provided with an on-satellite cluster service switching unit;
the on-board cluster service functional unit acquires a cluster communication group, a bearing link construction instruction, a bearing link release instruction and route organization information which are issued by the cluster control unit from the gateway station through the feeder link, and receives the cluster communication service of a communication terminal accessed to a local communication satellite;
the on-satellite cluster service switching unit acquires a cluster communication group, a bearing link construction instruction, a bearing link release instruction and route organization information from the gateway station through the feeder link, and receives cluster communication services accessed between communication terminals of different communication satellites.
The cluster communication method of the satellite interconnection cluster network communication system provided by the invention is characterized in that:
the trunking service call request is initiated by a calling communication terminal, the trunking service call request sent by the calling communication terminal sequentially passes through a communication satellite covering the communication terminal and a corresponding gateway station to reach a core network control surface unit, the core network control surface unit sends the trunking service call request to a trunking control unit according to the trunking call attribute of the core network control surface unit, and the trunking control unit further pushes the request to a trunking dispatching desk;
after receiving the cluster service call request, the cluster dispatching desk approves the cluster communication call group, the terminal identity and the call authority and sends a confirmation request message to the cluster control unit;
the cluster control unit determines a cluster working mode according to the specific type of the cluster service and sends a cluster service establishment notice to the core network control plane unit; after receiving the notification of the establishment of the trunking service, the core network control plane unit firstly determines a gateway station and a communication satellite corresponding to the originating communication terminal and the called communication terminal, and feeds back information of the gateway station and the communication satellite corresponding to the originating communication terminal and the called communication terminal to the trunking control unit, and the trunking control unit determines a bearing mode of a communication link and a functional unit for bearing the trunking service according to the received feedback information, the ground network condition and the interstellar network condition and gives out a bearing path of the communication link;
under the condition of adopting a ground link mode, if the calling communication terminal and the called communication terminal are accessed to different gateway stations, the core trunking service functional unit receives trunking services, and if the calling communication terminal and the called communication terminal are accessed to the same gateway station, the local trunking service functional unit at the gateway station side receives trunking services;
under the condition of adopting an interstellar link mode, if the calling communication terminal and the called communication terminal are accessed to different communication satellites, the satellite cluster service functional unit and the satellite cluster service switching unit on the corresponding communication satellite are used for bearing the cluster service, and if the calling communication terminal and the called communication terminal are accessed to the same communication satellite, the satellite cluster service functional unit on the corresponding communication satellite is used for bearing the cluster service;
the cluster control unit sends a cluster service establishment notice to a relevant unit bearing the cluster service, and the core network control surface unit sends the cluster service establishment notice to a corresponding gateway station, a communication satellite and a communication terminal on a communication link bearing path;
after receiving the notice of cluster service establishment, the calling communication terminal initiates the establishment of cluster bearing;
under the condition of adopting a ground link mode, a cluster bearing initiated and established by a calling communication terminal reaches a unit for bearing the cluster service through a corresponding communication satellite and a gateway station in sequence, and then the unit for bearing the cluster service is communicated with the called communication terminal, the communication satellite and the gateway station corresponding to the communication terminal, so that the establishment of an end-to-end cluster bearing is completed;
under the condition of adopting an interstellar link mode, the cluster bearing initiated and established by the calling communication terminal reaches the unit for bearing the cluster service through the corresponding communication satellite, and then the unit for bearing the cluster service is communicated with the called communication terminal and the corresponding communication satellite, so that the establishment of the end-to-end cluster bearing is completed.
The invention provides a satellite interconnection cluster network communication system and a communication method, wherein a cluster control unit, a core cluster service function unit, a local cluster service function unit, an on-satellite cluster service function unit and an on-satellite cluster service switching unit are respectively added at a core network, a gateway station and a satellite side of the existing satellite interconnection cluster network communication system, and a cluster dispatching desk is additionally arranged; therefore, 4 cluster link modes including ground cross-gateway stations and single-gateway stations, interstellar cross-satellites and single-satellites are constructed, and all possible cluster communication scenes are covered; through the cooperation of the newly-added cluster network element, the core network control plane unit, the gateway station, the communication satellite and the communication terminal with the cluster function, end-to-end satellite interconnection cluster network communication can be constructed, so that the satellite communication can be used for commanding and scheduling in emergency scenes.
Drawings
Fig. 1 is a schematic structural diagram of a satellite interconnection trunking network communication system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a mechanism for establishing a cross-gateway-station trunking communication service in a satellite interconnection trunking network communication system in the embodiment of the present invention, in a case of adopting a ground link mode;
fig. 3 is a schematic diagram of a mechanism for establishing a trunking communication service at the same gateway station in a ground link manner in a satellite interconnection trunking network communication system according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a cross-satellite trunking communication service establishment mechanism in a satellite interconnection trunking network communication system in the embodiment of the present invention, in the case of adopting an interplanetary link mode;
fig. 5 is a schematic diagram of a mechanism for establishing a trunking communication service under the same satellite in a satellite interconnection trunking network communication system in the embodiment of the present invention, in a case of adopting an interplanetary link mode.
Detailed Description
The following description will be made in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and all similar structures and similar variations thereof adopted by the present invention shall fall within the protection scope of the present invention, wherein the pause numbers in the present invention shall represent the relation of the pause numbers, and the english letters in the present invention shall be distinguished by the case.
As shown in fig. 1, a satellite interconnection trunking network communication system provided in an embodiment of the present invention includes a core network, a star link formed by a plurality of communication satellites, a plurality of gateway stations for connecting each communication satellite with the core network, and a plurality of communication terminals capable of connecting the communication satellites, wherein each gateway station is interconnected with the core network in a communication manner, and a core network control plane unit is disposed in the core network, and is characterized in that: the system also comprises a cluster dispatching desk;
the core network is also provided with a cluster control unit and a core cluster service functional unit;
the cluster control unit is communicated with the core network control plane unit in a logic mode and is used for determining a link mode and a unit for bearing cluster services, sending a cluster communication group, a bearing link construction instruction, a bearing link release instruction and routing organization information to relevant service units according to the communication group instruction of the dispatching desk, and receiving and managing cluster calls through the core network control plane unit;
the cluster dispatching console is in logical communication with the cluster control unit and carries out dispatching management on cluster groups through the cluster control unit and the core network control surface unit;
the core cluster service function unit is logically communicated with the cluster control unit and is logically communicated with a plurality of gateway stations, and acquires a cluster communication group, a bearing link construction instruction, a bearing link release instruction and route organization information through the cluster control unit and receives cluster communication services accessed between communication terminals of different gateway stations through the gateway stations which are logically communicated with the core cluster service function unit;
the gateway station is provided with a local cluster service function unit which is logically communicated with a core network control surface unit, and the local cluster service function unit acquires a cluster communication group, a bearing link construction instruction, a bearing link release instruction and route organization information which are issued by the cluster control unit through the core network control surface unit and carries cluster communication services among communication terminals accessed to the local gateway station through the local gateway station;
in the star chain, at least one communication satellite is provided with an on-satellite cluster service functional unit, and at least one communication satellite is provided with an on-satellite cluster service switching unit;
the on-board cluster service functional unit acquires a cluster communication group, a bearing link construction instruction, a bearing link release instruction and route organization information which are issued by the cluster control unit from the gateway station through the feeder link, and receives the cluster communication service of a communication terminal accessed to a local communication satellite;
the on-satellite cluster service switching unit acquires a cluster communication group, a bearing link construction instruction, a bearing link release instruction and route organization information from the gateway station through the feeder link, and receives cluster communication services accessed between communication terminals of different communication satellites.
In the embodiment of the invention, the satellite interconnection cluster network communication can adopt two modes of a ground link and an interplanetary link, and an interconnection backup link; the exact mode is selected according to the bandwidth, time delay and safety performance of the specific interplanetary and ground network and the adaptability of the developed cluster service technical requirements.
As shown in fig. 2 to fig. 5, the cluster communication method according to the embodiment of the present invention is as follows:
the trunking service call request is initiated by a calling communication terminal, the trunking service call request sent by the calling communication terminal sequentially passes through a communication satellite covering the communication terminal and a corresponding gateway station to reach a core network control surface unit, the core network control surface unit sends the trunking service call request to a trunking control unit according to the trunking call attribute of the core network control surface unit, and the trunking control unit further pushes the request to a trunking dispatching desk;
after receiving the cluster service call request, the cluster dispatching desk approves the cluster call group, the terminal identity and the call authority and sends a confirmation request message to the cluster control unit;
the cluster control unit determines cluster working modes according to the specific types of the cluster services (the cluster working mode of each type of the cluster services is preset), and sends a cluster service establishment notice to the core network control plane unit; after receiving the notification of the establishment of the trunking service, the core network control plane unit determines a gateway station and a communication satellite corresponding to the originating communication terminal and the called communication terminal, and feeds back information of the gateway station and the communication satellite corresponding to the originating communication terminal and the called communication terminal to the trunking control unit, and the trunking control unit determines a bearing mode (a ground link mode or an interplanetary link mode) of a communication link and a functional unit for bearing the trunking service according to the received feedback information, the ground network condition and the interplanetary network condition, and gives out a bearing path of the communication link;
under the condition of adopting a ground link mode, if the calling communication terminal and the called communication terminal are accessed to different gateway stations, the core trunking service functional unit receives trunking services, and if the calling communication terminal and the called communication terminal are accessed to the same gateway station, the local trunking service functional unit at the gateway station side receives trunking services;
under the condition of adopting an interstellar link mode, if the calling communication terminal and the called communication terminal are accessed to different communication satellites, the satellite cluster service functional unit and the satellite cluster service switching unit on the corresponding communication satellite are used for bearing the cluster service, and if the calling communication terminal and the called communication terminal are accessed to the same communication satellite, the satellite cluster service functional unit on the corresponding communication satellite is used for bearing the cluster service;
the cluster control unit sends a cluster service establishment notice to a relevant unit bearing the cluster service, and the core network control surface unit sends the cluster service establishment notice to a corresponding gateway station, a communication satellite and a communication terminal on a communication link bearing path;
after receiving the notice of cluster service establishment, the calling communication terminal initiates the establishment of cluster bearing;
under the condition of adopting a ground link mode, a cluster bearing initiated and established by a calling communication terminal reaches a unit for bearing the cluster service through a corresponding communication satellite and a gateway station in sequence, and then the unit for bearing the cluster service is communicated with the called communication terminal, the communication satellite and the gateway station corresponding to the communication terminal, so that the establishment of an end-to-end cluster bearing is completed;
under the condition of adopting an interstellar link mode, the cluster bearing initiated and established by the calling communication terminal reaches the unit for bearing the cluster service through the corresponding communication satellite, and then the unit for bearing the cluster service is communicated with the called communication terminal and the corresponding communication satellite, so that the establishment of the end-to-end cluster bearing is completed.
In the embodiment of the present invention, the core network control plane unit, the gateway station, the communication satellite, and the communication mechanism all use well-known schemes in the prior art, which are described in many existing documents, and are not described in detail in this embodiment.
The embodiment of the invention adds a cluster control unit, a core cluster service functional unit, a local cluster service functional unit, an on-satellite cluster service switching unit and a cluster dispatching desk in the existing satellite internet architecture; when a communication terminal initiates a trunking call request, the call request is sent to a trunking control unit and a trunking dispatching station through a corresponding communication satellite, a gateway station and a core network control surface unit, the trunking dispatching station confirms a trunking communication group, a terminal identity and a call authority, the core network control surface unit positions the communication satellite and the gateway station corresponding to a relevant terminal according to the trunking communication group, the trunking control unit selects a ground link or an interstellar link mode according to network performance and service requirements, judges whether the gateway station is crossed under the ground mode or not and whether the gateway station is crossed under the interstellar mode or not according to terminal positioning information, further determines different bearing units for bearing and processing trunking services in four modes, informs the bearing units to establish the trunking services, and the core network control surface unit sends a trunking service establishment notice and corresponding path information to the relevant gateway station, the communication satellite and the communication terminal; and finally, an end-to-end cluster service bearer terminated by the called terminal is constructed according to an appointed path from the calling terminal, so that cluster mode communication in the satellite internet is realized, and powerful network technical support is provided for emergency application scenes and the like which need to command scheduling and satellite communication at the same time.
Claims (2)
1. A satellite interconnection cluster network communication system comprises a core network, a star chain consisting of a plurality of communication satellites, a plurality of gateway stations used for connecting each communication satellite and the core network, and a plurality of communication terminals capable of being connected with the communication satellites, wherein each gateway station is interconnected with the core network in a communication mode, and a core network control surface unit is arranged in the core network, and the satellite interconnection cluster network communication system is characterized in that: the system also comprises a cluster dispatching desk;
the core network is also provided with a cluster control unit and a core cluster service functional unit;
the cluster dispatching console is in logical communication with the cluster control unit and carries out dispatching management on cluster groups through the cluster control unit and the core network control surface unit;
the cluster control unit is communicated with the core network control plane unit in a logic mode and is used for determining a link mode, determining a unit for bearing cluster services, sending a cluster communication group, a bearing link construction instruction, a bearing link release instruction and route organization information, and receiving and managing a cluster call through the core network control plane unit;
the core cluster service function unit is logically communicated with the cluster control unit and is logically communicated with a plurality of gateway stations, and acquires a cluster communication group, a bearing link construction instruction, a bearing link release instruction and route organization information through the cluster control unit and receives cluster communication services accessed between communication terminals of different gateway stations through the gateway stations which are logically communicated with the core cluster service function unit;
the gateway station is provided with a local cluster service function unit which is logically communicated with a core network control surface unit, and the local cluster service function unit acquires a cluster communication group, a bearing link construction instruction, a bearing link release instruction and route organization information which are issued by the cluster control unit through the core network control surface unit and carries cluster communication services among communication terminals accessed to the local gateway station through the local gateway station;
in the star chain, at least one communication satellite is provided with an on-satellite cluster service functional unit, and at least one communication satellite is provided with an on-satellite cluster service switching unit;
the on-board cluster service functional unit acquires a cluster communication group, a bearing link construction instruction, a bearing link release instruction and route organization information which are issued by the cluster control unit from the gateway station through the feeder link, and receives the cluster communication service of a communication terminal accessed to a local communication satellite;
the on-satellite cluster service switching unit acquires a cluster communication group, a bearing link construction instruction, a bearing link release instruction and route organization information from the gateway station through the feeder link, and receives cluster communication services accessed between communication terminals of different communication satellites.
2. The trunking communication method of the satellite interconnection trunking network communication system of claim 1, wherein:
the trunking service call request is initiated by a calling communication terminal, the trunking service call request sent by the calling communication terminal sequentially passes through a communication satellite covering the communication terminal and a corresponding gateway station to reach a core network control surface unit, the core network control surface unit sends the trunking service call request to a trunking control unit according to the trunking call attribute of the core network control surface unit, and the trunking control unit further pushes the request to a trunking dispatching desk;
after receiving the cluster service call request, the cluster dispatching desk approves the cluster communication call group, the terminal identity and the call authority and sends a confirmation request message to the cluster control unit;
the cluster control unit determines a cluster working mode according to the specific type of the cluster service and sends a cluster service establishment notice to the core network control plane unit; after receiving the notification of the establishment of the trunking service, the core network control plane unit firstly determines a gateway station and a communication satellite corresponding to the originating communication terminal and the called communication terminal, and feeds back information of the gateway station and the communication satellite corresponding to the originating communication terminal and the called communication terminal to the trunking control unit, and the trunking control unit determines a bearing mode of a communication link and a functional unit for bearing the trunking service according to the received feedback information, the ground network condition and the interstellar network condition and gives out a bearing path of the communication link;
under the condition of adopting a ground link mode, if the calling communication terminal and the called communication terminal are accessed to different gateway stations, the core trunking service functional unit receives trunking services, and if the calling communication terminal and the called communication terminal are accessed to the same gateway station, the local trunking service functional unit at the gateway station side receives trunking services;
under the condition of adopting an interstellar link mode, if the calling communication terminal and the called communication terminal are accessed to different communication satellites, the satellite cluster service functional unit and the satellite cluster service switching unit on the corresponding communication satellite are used for bearing the cluster service, and if the calling communication terminal and the called communication terminal are accessed to the same communication satellite, the satellite cluster service functional unit on the corresponding communication satellite is used for bearing the cluster service;
the cluster control unit sends a cluster service establishment notice to a relevant unit bearing the cluster service, and the core network control surface unit sends the cluster service establishment notice to a corresponding gateway station, a communication satellite and a communication terminal on a communication link bearing path;
after receiving the notice of cluster service establishment, the calling communication terminal initiates the establishment of cluster bearing;
under the condition of adopting a ground link mode, a cluster bearing initiated and established by a calling communication terminal reaches a unit for bearing the cluster service through a corresponding communication satellite and a gateway station in sequence, and then the unit for bearing the cluster service is communicated with the called communication terminal, the communication satellite and the gateway station corresponding to the communication terminal, so that the establishment of an end-to-end cluster bearing is completed;
under the condition of adopting an interstellar link mode, the cluster bearing initiated and established by the calling communication terminal reaches the unit for bearing the cluster service through the corresponding communication satellite, and then the unit for bearing the cluster service is communicated with the called communication terminal and the corresponding communication satellite, so that the establishment of the end-to-end cluster bearing is completed.
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