CN204707124U - A kind of geo-synchronous orbit satellite telecommunications access systems - Google Patents
A kind of geo-synchronous orbit satellite telecommunications access systems Download PDFInfo
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- CN204707124U CN204707124U CN201520114703.7U CN201520114703U CN204707124U CN 204707124 U CN204707124 U CN 204707124U CN 201520114703 U CN201520114703 U CN 201520114703U CN 204707124 U CN204707124 U CN 204707124U
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Abstract
The utility model provides geo-synchronous orbit satellite telecommunications access systems, comprises space subsystem and ground subsystem two parts; Described space subsystem comprises at least one geo-synchronous orbit satellite, and described geo-synchronous orbit satellite forwards forward link radio signals, return link wireless signal by a geo-synchronous orbit satellite transponder; Described ground subsystem comprises ground main website, magnanimity satellite router and one or more user terminal; Described ground main website is connected with third party device communication by internet, and completes data by described forward link and forward to the broadcast of user coverage; Described magnanimity satellite router overlay area is formed and independently serves subarea, and each magnanimity satellite router provides the inserting of satellite service of described one or more user terminal in its service subarea.The utility model system has and drops into the features such as low, capacity is large and Consumer's Experience is good.
Description
Technical field
The utility model relates to satellite communication, particularly a kind of geo-synchronous orbit satellite telecommunications access systems.
Background technology
For the satellite communication system of geostationary orbit, improving Reverse-link User capacity and have good Consumer's Experience in limited transponder bandwidth, is the key issue that satellite communication individual application must solve.Existing geo-synchronous orbit satellite communication is mainly used in special trade, internal information as securities broker company, bank etc. is transmitted, by setting up main website and some VSAT earth stations, realize the information broadcast communication of main website to VSAT, also provide VSAT to the information transfer capability of main website if desired, but individual Mobile solution can not be provided, the development space of serious constraint satellite communication.
The solution that the utility model can provide a kind of geo-synchronous orbit satellite to communicate individual Mobile solution, satellite communication transponder has higher band efficiency, simultaneously can with smart mobile phone or panel computer directly interconnected, Consumer's Experience is good.
Utility model content
For the technological deficiency existed in prior art, the purpose of this utility model is to provide a kind of geo-synchronous orbit satellite telecommunications access systems, it is characterized in that, comprises space subsystem and ground subsystem two parts; Described space subsystem comprises at least one geo-synchronous orbit satellite, and described geo-synchronous orbit satellite forwards forward link radio signals, return link wireless signal by a geo-synchronous orbit satellite transponder; Described ground subsystem comprises ground main website, magnanimity satellite router and one or more user terminal; Described ground main website is connected with third party device communication by internet, and completes data by described forward link and forward to the broadcast of user coverage; Described magnanimity satellite router overlay area is formed and independently serves subarea, and each magnanimity satellite router provides the inserting of satellite service of described one or more user terminal in its service subarea.
Preferably, described ground main website comprises radio transmitting device, magnanimity channel reception device, internetwork access device, and described radio transmitting device, magnanimity channel reception device, internetwork access device are electrically connected respectively; Described radio transmitting device transmitting system information or from internet obtaining information, and by described geo-synchronous orbit satellite transponder the whole network broadcast; Described magnanimity channel reception device provides return link Signal reception passage, sends data for receiving some described magnanimity satellite routers; Described internetwork access device is by Master station access internet, described ground.
Preferably, described magnanimity channel reception device provides and is not less than 1000 tunnel return link Signal reception passages.
Preferably, described magnanimity satellite router comprises local transceiver device, home server, WAP (wireless access point), and described local transceiver device, home server, WAP (wireless access point) connect respectively; Described local transceiver device comprises dual-mode antenna, modulator-demodulator, for receiving and dispatching described forward link radio signals, return link wireless signal; Described home server stores described local transceiver device and receives data.
The utility model has the advantage of, make full use of geo-synchronous orbit satellite transponder, take 25KHz as return link channel width, then each 36MHz transponder can provide and be not less than 1000 frequency splitting channels, in service subarea, user is by WiFi access network, and system has and drops into the features such as low, capacity is large and Consumer's Experience is good.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present utility model will become more obvious:
The system architecture schematic diagram of the described geo-synchronous orbit satellite telecommunications access systems that Fig. 1 provides for the utility model;
The transponder channel of the described geo-synchronous orbit satellite telecommunications access systems that Fig. 2 provides for the utility model distributes schematic diagram;
The ground master station module composition schematic diagram of the described geo-synchronous orbit satellite telecommunications access systems that Fig. 3 provides for the utility model; And
The satellite router-module composition schematic diagram of the described geo-synchronous orbit satellite telecommunications access systems that Fig. 4 provides for the utility model.
Embodiment
In order to better make the technical solution of the utility model show clearly, below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is the system architecture schematic diagram of geo-synchronous orbit satellite telecommunications access systems described in the utility model, comprising: geo-synchronous orbit satellite, ground main website, some magnanimity satellite routers and some user terminals.
Geo-synchronous orbit satellite: be the space subsystem of geo-synchronous orbit satellite telecommunications access systems described in the utility model, for forwarding forward direction/return link wireless signal, satellite coverage area is the service area of geo-synchronous orbit satellite telecommunications access systems described in the utility model.Current space subsystem has many business geosynchronous satellites to provide transponder rental service, and as culminant star No. 10 satellites, this satellite comprises the transponder of multiple bandwidth 36MHz.
Ground main website: be the ground subsystem main node of geo-synchronous orbit satellite telecommunications access systems described in the utility model, ground main website enters the Internet in a wired or wireless fashion, complete data by forward link to forward to the broadcast of user coverage, the return link wireless signal simultaneously providing magnanimity receive path to receive some magnanimity satellite routers to send.
Magnanimity satellite router: be the ground subsystem main node of geo-synchronous orbit satellite telecommunications access systems described in the utility model, the overlay area of each magnanimity satellite router forms a service subarea, and magnanimity satellite router provides individual inserting of satellite service in region.Service subarea can be sole user or multiple user uses.Different sub-services district user adopts FDMA to pass through return link main website transparent forwarding user profile earthward.After the forward link data that magnanimity satellite router receives stores, by LUT by inquiring about and using.
User terminal: be the ground subsystem main node of geo-synchronous orbit satellite telecommunications access systems described in the utility model, user terminal comprises the terminal equipment that 802.11 agreements supported by smart mobile phone, palmtop PC etc., user terminal connects satellite router by WiFi magnanimity, receiving satellite broadcast data, send to main website by after the personal user's data packing needing to send simultaneously.
Fig. 2 is that the transponder channel of geo-synchronous orbit satellite telecommunications access systems described in the utility model distributes schematic diagram.
According to Radio Frequency Allocation Regulation of the People's Republic of China (2014 editions), consider using 12.2-12.5 (12.75) GHz as band downlink range of choice, using 14-14.25 (14.3) GHz as uplink band range of choice.
Suppose in Fig. 2 that a transponder bandwidth is 36MHz, forward channel rate gets 5Mbps, and QPSK modulates, and after adopting chnnel coding and molding filtration, occupied bandwidth is about 5MHz; All the other 31MHz bandwidth of transponder are the channel (the protection interval containing interchannel) of 1240 25KHz by frequency division, and every bar channel transmits a road wireless signal with QPSK modulation system.Transponder adopts SCPC/FDMA mode to provide user uplink channel 1240 altogether, and the user uplink channel equal proportion that multiple transponder can provide increases.
Fig. 3 is the ground master station module composition schematic diagram of geo-synchronous orbit satellite telecommunications access systems described in the utility model, comprises radio transmitting device, magnanimity channel reception device, internetwork access device.
Radio transmitting device: for sending forward link broadcast signal, signal is by the broadcast of geo-synchronous orbit satellite transponder the whole network.Radio transmitting device mainly comprises antenna, transmission channel and modulator etc., will send from after internet data or system monitoring Data Modulation.
Magnanimity channel reception device: provide and be not less than 1000 tunnel return link Signal reception passages, for receiving each frequency splitting channel data that satellite repeater back channel forwards.Magnanimity channel reception device mainly comprises antenna, receive path and magnanimity channel baseband receiving demodulation equipment, data after demodulating carries out storing also (or) transfer to internet by internetwork access device.
Internetwork access device: for by system access to internet, be generally the network computer or server that comprise network adapter.
Fig. 4 is the magnanimity satellite router-module composition schematic diagram of geo-synchronous orbit satellite telecommunications access systems described in the utility model, comprises local transceiver device, home server, wireless aps.
Local transceiver device: comprise dual-mode antenna, modulator-demodulator etc., for the transmitting-receiving of forward direction/return link wireless signal, by local transceiver device, forward link signal receiving demodulation ground main website can broadcasted by satellite repeater, can send user terminal data modulation simultaneously.
Home server: connect local transceiver device and wireless aps, for store local transceiver device receive data to be inquired about by described wireless aps for local one or more user terminal or; Receive simultaneously and store user data and sent by return link through local transceiver device.
WAP (wireless access point) (wireless aps): for one or more user terminal provides wireless network to access, user terminal accesses geo-synchronous orbit satellite communication system described in the utility model by wireless aps, and great majority all support multiple access based on the wireless aps of 802.11 agreements at present.
Above specific embodiment of the utility model is described.It is to be appreciated that the utility model is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present utility model.
Claims (4)
1. a geo-synchronous orbit satellite telecommunications access systems, is characterized in that, comprises space subsystem and ground subsystem two parts; Described space subsystem comprises at least one geo-synchronous orbit satellite, and described geo-synchronous orbit satellite forwards forward link radio signals, return link wireless signal by a geo-synchronous orbit satellite transponder; Described ground subsystem comprises ground main website, magnanimity satellite router and one or more user terminal; Described ground main website is connected with third party device communication by internet, and completes data by described forward link and forward to the broadcast of user coverage; Described magnanimity satellite router overlay area is formed and independently serves subarea, and each magnanimity satellite router provides the inserting of satellite service of described one or more user terminal in its service subarea.
2. geo-synchronous orbit satellite telecommunications access systems according to claim 1, it is characterized in that, described ground main website comprises radio transmitting device, magnanimity channel reception device, internetwork access device, and described radio transmitting device, magnanimity channel reception device, internetwork access device are electrically connected respectively; Described radio transmitting device transmitting system information or from internet obtaining information, and by described geo-synchronous orbit satellite transponder the whole network broadcast; Described magnanimity channel reception device provides return link Signal reception passage, sends data for receiving some described magnanimity satellite routers; Described internetwork access device is by Master station access internet, described ground.
3. geo-synchronous orbit satellite telecommunications access systems according to claim 2, is characterized in that, described magnanimity channel reception device provides and is not less than 1000 tunnel return link Signal reception passages.
4. geo-synchronous orbit satellite telecommunications access systems according to any one of claim 1 to 3, it is characterized in that: described magnanimity satellite router comprises local transceiver device, home server, WAP (wireless access point), and described local transceiver device, home server, WAP (wireless access point) connect respectively; Described local transceiver device comprises dual-mode antenna, modulator-demodulator, for receiving and dispatching described forward link radio signals, return link wireless signal; Described home server stores described local transceiver device and receives data.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104683013A (en) * | 2015-02-17 | 2015-06-03 | 梁旭文 | Geosynchronous orbit satellite communication access system and access method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104683013A (en) * | 2015-02-17 | 2015-06-03 | 梁旭文 | Geosynchronous orbit satellite communication access system and access method |
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