CN112491460B - Satellite-borne multi-stage exchange device supporting multi-rate multi-protocol satellite communication service - Google Patents
Satellite-borne multi-stage exchange device supporting multi-rate multi-protocol satellite communication service Download PDFInfo
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- CN112491460B CN112491460B CN202011313476.2A CN202011313476A CN112491460B CN 112491460 B CN112491460 B CN 112491460B CN 202011313476 A CN202011313476 A CN 202011313476A CN 112491460 B CN112491460 B CN 112491460B
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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
- H04B7/18513—Transmission in a satellite or space-based system
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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
- H04B7/18519—Operations control, administration or maintenance
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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
- H04B7/18578—Satellite systems for providing broadband data service to individual earth stations
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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
- H04B7/18578—Satellite systems for providing broadband data service to individual earth stations
- H04B7/18586—Arrangements for data transporting, e.g. for an end to end data transport or check
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
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Abstract
The invention discloses a satellite-borne multistage switching device supporting multi-rate and multi-protocol satellite communication services, and belongs to the technical field of satellite-borne switching. The device comprises a broadband access switching unit, a narrowband access switching unit, a low-speed division multiplexing and protocol conversion unit, a broadband backbone switching unit, a high-speed division multiplexing and protocol conversion unit, a cross-link forwarding unit and an integrated control unit. The broadband and narrowband access switching units respectively realize the broadband and narrowband user data switching function; the broadband backbone exchange unit and the link forwarding unit respectively realize the backbone exchange function and the link forwarding function; the low-speed and high-speed multiplexing and protocol conversion unit realizes the functions of high-speed and low-speed data multiplexing and protocol conversion; the integrated control unit realizes the control configuration function. The invention has the advantages of supporting multi-rate and multi-protocol converged communication, supporting high-capacity and multi-granularity switching, high expandability and the like, and is particularly suitable for satellite-borne switching devices of satellite communication systems supporting converged services.
Description
Technical Field
The invention relates to a satellite-borne multistage switching device supporting multi-rate multi-protocol satellite communication services, and belongs to the technical field of satellite-borne switching.
Background
The traditional communication satellite generally adopts a bent pipe type transponder, only completes signal amplification and frequency switching, is irrelevant to a signal form, and is transparent to a network protocol. The mode has simple structure and reliable performance, and is widely applied under the condition that the satellite effective load and the power supply power are limited. However, with the development of satellite communication technology, the increase of traffic and the improvement of communication quality requirements have made strict and urgent requirements on the aspects of satellite communication system spectrum utilization rate, system capacity, communication quality and the like. The satellite processing technology can be adopted to enable the effect of the satellite in the information network to be changed profoundly, and the transmission is changed into the network node.
However, with the increase of satellite platforms, the loads that can be loaded on the satellite are more and more, and the shortage of the orbital frequency is considered, so that the application requirement of a single satellite for realizing the high-capacity, multi-rate and multi-protocol converged satellite communication is more and more increased. It is expected that a new generation satellite communication system will not only undertake large-granularity spatial data relay, but also meet the application requirements of large-scale user broadband access, narrow-band access, backbone transmission and the like. The applications are greatly different in transmission requirements and service quality guarantee, and the single-stage satellite-borne switching technology cannot meet the comprehensive application requirements of multi-rate and multi-protocol convergence services.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a satellite-borne multistage switching device for supporting multi-rate and multi-protocol satellite communication services. The invention has the advantages of supporting multi-rate and multi-protocol integrated communication, supporting large-capacity and multi-granularity exchange, high expandability and the like, and is particularly suitable for a satellite-borne exchange device of multi-rate and multi-protocol satellite communication integrated service.
The purpose of the invention is realized as follows:
a satellite-borne multi-stage switching device supporting multi-rate multi-protocol satellite communication service comprises a broadband access switching unit 1, a narrow-band access switching unit 2, a low-speed division multiplexing and protocol conversion unit 3, a broadband backbone switching unit 4, a high-speed division multiplexing and protocol conversion unit 5, a cross-link forwarding unit 6 and an integrated control unit 7;
the plurality of broadband access switching units 1 receive broadband user data input from the outside and broadband user data output by the low-speed distribution multiplexing and protocol conversion unit 3, perform classification processing and port switching on the data according to configuration information of the integrated control unit 7, directly forward and output the data switched to the unit, and output the data switched to other units to the low-speed distribution multiplexing and protocol conversion unit 3;
the plurality of narrowband access switching units 2 receive narrowband user data input from outside and narrowband user data output by the low-speed division multiplexing and protocol conversion unit 3, perform classification processing and port switching on the data according to configuration information of the integrated control unit 7, directly forward and output the data switched to the unit, and output the data switched to other units to the low-speed division multiplexing and protocol conversion unit 3;
the low-speed division multiplexing and protocol conversion unit 3 receives the data of the plurality of broadband access switching units 1 and the plurality of narrowband access switching units 2, performs multiplexing and protocol conversion processing on the data according to the configuration information of the integrated control unit 7, and forwards the processed data to the broadband backbone switching unit 4; the low-speed division multiplexing and protocol conversion unit 3 also receives data of the broadband backbone exchange unit 4, performs the division, the identification and the protocol conversion processing of the broadband user data according to the configuration information of the integrated control unit 7, and forwards the processed broadband user data to the broadband access exchange unit 1 and the narrowband user data to the narrowband access exchange unit 2;
the broadband backbone exchange unit 4 receives externally input backbone communication data which is output by the low-speed division multiplexing and protocol conversion unit 3, output by the high-speed division multiplexing and protocol conversion unit 5 and output by the integrated control unit 7, classifies and performs port exchange on the data according to configuration information of the integrated control unit 7, directly forwards and outputs the data which is exchanged to the broadband and narrowband users, forwards the data which is exchanged to the broadband and narrowband users to the low-speed division multiplexing and protocol conversion unit 3, forwards the data which is exchanged to the cross-link forwarding unit 6 to the high-speed division multiplexing and protocol conversion unit 5, and forwards control data to the integrated control unit 7;
the high-speed division multiplexing and protocol conversion unit 5 receives the data output by the broadband backbone exchange unit 4, performs multiplexing and protocol conversion processing according to the configuration information of the integrated control unit 7, and forwards the processed data to the link forwarding unit 6; the high-speed division multiplexing and protocol conversion unit 5 also receives the data output by the link forwarding unit 6, performs the division and protocol conversion processing according to the configuration information of the integrated control unit 7, and forwards the processed data to the broadband backbone switching unit 4;
the link forwarding unit 6 receives externally input link data and link data output by the high-speed division multiplexing and protocol conversion unit 5, performs link forwarding according to configuration information of the integrated control unit 7, directly forwards and outputs the data linked to the unit, and forwards data exchanged to other units to the high-speed division multiplexing and protocol conversion unit 5;
the integrated control unit 7 analyzes the control information input by the broadband backbone switching unit 4, returns the response information to the broadband backbone switching unit 4, and outputs the control information to the broadband access switching unit 1, the narrowband access switching unit 2, the low-speed division multiplexing and protocol converting unit 3, the broadband backbone switching unit 4, the high-speed division multiplexing and protocol converting unit 5, and the link forwarding unit 6 according to the configuration type.
Compared with the background technology, the invention has the following advantages:
1. the invention divides the traditional single plane switching into multi-stage switching architecture, can meet the communication requirements of the convergence service such as relay interlinkage, backbone transmission, broadband access, narrowband access and the like, can meet different switching modes, and can meet the integrated switching requirements of large capacity, different rates and different protocols.
2. The invention provides a high-extensible switching architecture, and a plurality of units can be combined for use to meet different satellite communication application scenes, so that the high-extensible switching architecture has the characteristics of strong extensibility, good adaptability and the like.
Drawings
Fig. 1 is an electrical schematic diagram of a satellite-borne multistage switching apparatus according to an embodiment of the present invention.
Fig. 2 to 8 are electrical schematic diagrams of a multi-cell combination to meet different application requirements.
Detailed Description
The technical scheme of the invention is further explained in detail by combining the attached drawings and the detailed description.
As shown in fig. 1, a satellite-borne multi-stage switching device supporting multi-rate multi-protocol satellite communication services includes a broadband access switching unit 1, a narrowband access switching unit 2, a low-speed division multiplexing and protocol conversion unit 3, a broadband backbone switching unit 4, a high-speed division multiplexing and protocol conversion unit 5, a cross-link forwarding unit 6, and an integrated control unit 7. Fig. 1 is an electrical schematic of the device, an embodiment connecting the lines according to fig. 1.
In the device, the broadband access switching unit 1 is used for receiving broadband user data input from the outside and output by the low-speed distribution multiplexing and protocol conversion unit 3, carrying out classification processing and port exchange on the data according to configuration information of the integrated control unit 7, directly forwarding and outputting the data exchanged to the unit, and outputting the data exchanged to other units to the low-speed distribution multiplexing and protocol conversion unit 3.
The narrowband access switching unit 2 is used for receiving narrowband user data input from outside and output from the low-speed multiplexing and protocol conversion unit 3, performing classification processing and port switching on the data according to configuration information of the integrated control unit 7, directly forwarding and outputting the data switched to the narrowband access switching unit, and outputting the data switched to other units to the low-speed multiplexing and protocol conversion unit 3.
The low-speed division multiplexing and protocol conversion unit 3 is used for receiving data of the plurality of broadband access switching units 1 and the plurality of narrowband access switching units 2, multiplexing and protocol conversion processing is carried out on the data according to the configuration information of the integrated control unit 7, and the processed data are forwarded to the broadband backbone switching unit 4.
The low-speed multiplexing and protocol conversion unit 3 has another function of receiving data of the broadband backbone switching unit 4, performing tapping, broadband and narrowband user data identification and protocol conversion processing on the data according to configuration information of the integrated control unit 7, and forwarding the processed broadband user data to the broadband access switching unit 1 and the processed narrowband user data to the narrowband access switching unit 2.
The broadband backbone switching unit 4 is used for receiving externally input backbone communication data which is output by the low-speed division multiplexing and protocol conversion unit 3, output by the high-speed division multiplexing and protocol conversion unit 5 and output by the integrated control unit 7, carrying out classification processing and port switching on the data according to configuration information of the integrated control unit 7, directly forwarding and outputting the data switched to the broadband and narrowband users, forwarding the data switched to the broadband and narrowband users to the low-speed division multiplexing and protocol conversion unit 3, forwarding the data switched to the cross-link data to the high-speed division multiplexing and protocol conversion unit 5, and forwarding the control data to the integrated control unit 7.
The high-speed division multiplexing and protocol conversion unit 5 is used for receiving the data output by the broadband backbone switching unit 4, performing multiplexing and protocol conversion processing according to the configuration information of the integrated control unit 7, and forwarding the processed data to the link forwarding unit 6.
The high-speed division multiplexing and protocol conversion unit 5 is also used for receiving the data output by the link forwarding unit 6, performing the division and protocol conversion processing according to the configuration information of the integrated control unit 7, and forwarding the processed data to the broadband backbone switching unit 4.
The link forwarding unit 6 is used for receiving link data input from outside and output from the high-speed division multiplexing and protocol conversion unit 5, performing link forwarding according to configuration information of the integrated control unit 7, directly forwarding and outputting data linked to the unit, and forwarding data exchanged to other units to the high-speed division multiplexing and protocol conversion unit 5.
The integrated control unit 7 is used for analyzing and processing the control information input by the broadband backbone switching unit 4, returning the response information to the broadband backbone switching unit 4, and outputting the control information to the broadband access switching unit 1, the narrowband access switching unit 2, the low-speed division multiplexing and protocol converting unit 3, the broadband backbone switching unit 4, the high-speed division multiplexing and protocol converting unit 5, and the link forwarding unit 6 according to the configuration type.
As shown in fig. 2, the broadband access switching unit 1, the narrowband access switching unit 2, the low-speed division multiplexing and protocol conversion unit 3, the broadband backbone switching unit 4, and the integrated control unit 7 are used in combination. The switching device is suitable for a satellite communication system with broadband user access, narrowband user access and different protocol and different rate fusion of laser intersatellite links.
As shown in fig. 3, the broadband access switching unit 1, the low-speed division multiplexing and protocol converting unit 3, the broadband backbone switching unit 4, the high-speed division multiplexing and protocol converting unit 5, the link forwarding unit 6, and the integrated control unit 7 are used in combination. The switching device is suitable for a satellite communication system with broadband user access, laser intersatellite link and laser data relay and with different protocols and different rate fusion.
As shown in fig. 4, the broadband access switching unit 1, the broadband backbone switching unit 4, the hsdpa and protocol conversion unit 5, the link forwarding unit 6, and the integrated control unit 7 are used in combination. The switching device is suitable for a satellite communication system with broadband user access, laser intersatellite link and laser data relay and with different protocols and different rate fusion.
As shown in fig. 5, the broadband access switching unit 1, the broadband backbone switching unit 4, the link forwarding unit 6, and the integrated control unit 7 are used in combination. The switching device is suitable for a satellite communication system with different rate fusion of broadband user access, laser intersatellite link and laser data relay.
As shown in fig. 6, the broadband backbone switching unit 4, the high-speed division multiplexing and protocol converting unit 5, the link forwarding unit 6, and the integrated control unit 7 are used in combination. The switching device is suitable for a satellite communication system with broadband backbone transmission and laser data relay, wherein different protocols and different rates are fused.
As shown in fig. 7, the narrowband access switching unit 2, the low-speed division multiplexing and protocol conversion unit 3, the broadband backbone switching unit 4, and the integrated control unit 7 are used in combination. The switching device is suitable for a satellite communication system with narrow-band user access and different protocol fusion of laser inter-satellite links.
As shown in fig. 8, the narrowband access switching unit 2, the broadband backbone switching unit 4, and the integrated control unit 7 are used in combination. The switching device is suitable for a satellite communication system with narrowband user access and laser intersatellite links.
The invention has the following brief working principle:
the plurality of broadband access switching units 1 receive broadband user data to perform classification processing and port switching on the data, directly transmit and output the data switched to the unit, and output the data switched to other units to the low-speed division multiplexing and protocol conversion unit 3; the plurality of narrowband access switching units 2 receive narrowband user data to perform classification processing and port switching on the data, directly transmit and output the data switched to the unit, and output the data switched to other units to the low-speed division multiplexing and protocol conversion unit 3; the low-speed division multiplexing and protocol conversion unit 3 receives low-speed data which needs to be subjected to division multiplexing and protocol conversion, and forwards the data after division multiplexing and protocol conversion processing to the plurality of broadband access switching units 1, the plurality of narrowband access switching units 2 and the broadband backbone switching unit 4; the broadband backbone switching unit 4 receives the backbone communication data, performs classification processing and port switching on the data, and respectively forwards the data to the low-speed division multiplexing and protocol conversion unit 3, the high-speed division multiplexing and protocol conversion unit 5 and the integrated control unit 7; the high-speed division multiplexing and protocol conversion unit 5 receives high-speed data which needs division multiplexing and protocol conversion, and forwards the data to the broadband backbone exchange unit 4 and the link forwarding unit 6 after the data division multiplexing and protocol conversion processing; the link forwarding unit 6 receives the link data to perform link forwarding, and directly forwards and outputs the data linked to the unit, and forwards the data exchanged to other units to the high-speed multiplexing and protocol conversion unit 5; the integrated control unit 7 analyzes the control configuration command and the protocol, and configures the configuration information to each of the other units.
In the invention, the broadband and narrowband access switching units respectively realize the broadband and narrowband user data switching function; the broadband backbone exchange unit and the link forwarding unit respectively realize the backbone exchange function and the link forwarding function; the low-speed and high-speed multiplexing and protocol conversion unit realizes the functions of high-speed and low-speed data multiplexing and protocol conversion; the integrated control unit realizes the control configuration function. The invention has the advantages of supporting multi-rate and multi-protocol converged communication, supporting high-capacity and multi-granularity switching, high expandability and the like, and is particularly suitable for satellite-borne switching devices of satellite communication systems supporting converged services.
Claims (1)
1. A satellite-borne multi-stage switching device supporting multi-rate multi-protocol satellite communication services is characterized by comprising a broadband access switching unit (1), a narrowband access switching unit (2), a low-speed division multiplexing and protocol conversion unit (3), a broadband backbone switching unit (4), a high-speed division multiplexing and protocol conversion unit (5), a cross-link forwarding unit (6) and an integrated control unit (7);
the broadband access switching units (1) receive externally input broadband user data and broadband user data output by the low-speed distribution multiplexing and protocol conversion unit (3), classify and process the data and exchange ports according to the configuration information of the integrated control unit (7), directly transmit and output the data exchanged to the broadband access switching units, and output the data exchanged to other units to the low-speed distribution multiplexing and protocol conversion unit (3);
the narrowband access switching units (2) receive narrowband user data input from outside and narrowband user data output by the low-speed division multiplexing and protocol conversion unit (3), classify and process the data and exchange ports according to the configuration information of the integrated control unit (7), directly transmit and output the data exchanged to the narrowband access switching units, and output the data exchanged to other units to the low-speed division multiplexing and protocol conversion unit (3);
the low-speed division multiplexing and protocol conversion unit (3) receives data of a plurality of broadband access switching units (1) and a plurality of narrowband access switching units (2), multiplexes and converts the data according to the configuration information of the integrated control unit (7), and forwards the processed data to the broadband backbone switching unit (4); the low-speed division multiplexing and protocol conversion unit (3) also receives data of the broadband backbone exchange unit (4), performs the processes of division, broadband and narrowband user data identification and protocol conversion on the data according to the configuration information of the integrated control unit (7), forwards the processed broadband user data to the broadband access exchange unit (1), and forwards the narrowband user data to the narrowband access exchange unit (2);
the broadband backbone switching unit (4) receives externally input backbone communication data which is output by the low-speed division multiplexing and protocol conversion unit (3), output by the high-speed division multiplexing and protocol conversion unit (5) and output by the integrated control unit (7), classifies the data according to configuration information of the integrated control unit (7) and performs port exchange, directly forwards and outputs the data exchanged to the broadband backbone switching unit, forwards the data exchanged to broadband and narrowband users to the low-speed division multiplexing and protocol conversion unit (3), forwards the data exchanged to the cross-link forwarding unit (6) to the high-speed division multiplexing and protocol conversion unit (5), and forwards control data to the integrated control unit (7);
the high-speed division multiplexing and protocol conversion unit (5) receives the data output by the broadband backbone exchange unit (4), performs multiplexing and protocol conversion processing according to the configuration information of the integrated control unit (7), and forwards the processed data to the link forwarding unit (6); the high-speed division multiplexing and protocol conversion unit (5) also receives data output by the link forwarding unit (6), performs division and protocol conversion processing according to the configuration information of the integrated control unit (7), and forwards the processed data to the broadband backbone exchange unit (4);
the link forwarding unit (6) receives externally input link data and link data output by the high-speed division multiplexing and protocol conversion unit (5), performs link forwarding according to configuration information of the integrated control unit (7), directly forwards and outputs the data linked to the link forwarding unit, and forwards the data exchanged to other units to the high-speed division multiplexing and protocol conversion unit (5);
the integrated control unit (7) analyzes the control information input by the broadband backbone exchange unit (4), returns the response information to the broadband backbone exchange unit (4), and outputs the control information to the broadband access exchange unit (1), the narrowband access exchange unit (2), the low-speed division multiplexing and protocol conversion unit (3), the broadband backbone exchange unit (4), the high-speed division multiplexing and protocol conversion unit (5) and the link forwarding unit (6) according to the configuration types.
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| US7450494B2 (en) * | 2004-09-03 | 2008-11-11 | Cisco Technology, Inc. | Reconfigurable apparatus providing 1:N and 1:1 equipment redundancy for high speed broadband interfaces with 1+1 and 1:N automatic protection switching |
| CN100466491C (en) * | 2007-03-16 | 2009-03-04 | 北京航空航天大学 | Mobile satellite multiprotocol tag exchange network system and operating method thereof |
| CN103501189B (en) * | 2009-08-12 | 2016-02-17 | 刘骏 | Based on the network data conversion device of power line carrier communication |
| CN109965778B (en) * | 2013-01-18 | 2022-08-16 | 艾罗伯特公司 | Environment management system including mobile robot and method of using the same |
| CN104184642B (en) * | 2014-08-31 | 2017-05-10 | 西安电子科技大学 | Multistage star type switched network structure and optimizing method |
| KR101736747B1 (en) * | 2015-12-09 | 2017-05-17 | 한국생산기술연구원 | A method for controlling an vehicle using difference of speed reduction ratio |
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