CN104506228B - A kind of WIFI application systems based on satellite communication - Google Patents
A kind of WIFI application systems based on satellite communication Download PDFInfo
- Publication number
- CN104506228B CN104506228B CN201410742476.2A CN201410742476A CN104506228B CN 104506228 B CN104506228 B CN 104506228B CN 201410742476 A CN201410742476 A CN 201410742476A CN 104506228 B CN104506228 B CN 104506228B
- Authority
- CN
- China
- Prior art keywords
- subsystem
- satellite
- data
- sent
- antenna
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims abstract description 41
- 238000007726 management method Methods 0.000 claims description 35
- 230000003321 amplification Effects 0.000 claims description 30
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 30
- 238000006243 chemical reaction Methods 0.000 claims description 25
- 238000012545 processing Methods 0.000 claims description 22
- 238000013468 resource allocation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000009432 framing Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 5
- 238000003786 synthesis reaction Methods 0.000 claims 5
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
Landscapes
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
一种基于卫星通信的WIFI应用系统，该系统主要包括网关站、通信卫星转发器、卫星终端和WIFI基站组成。网关站用于实现卫星馈电链路数据的收发、网络资源管理以及运营系统管理等功能；通信卫星转发器用于实现卫星用户链路数据和卫星馈电链路数据的转发功能；卫星终端用于实现卫星用户链路数据的收发功能；WIFI基站用于实现用户链路数据的无线收发功能。卫星馈电链路指卫星与网关站之间的通信链路；卫星用户链路指卫星与卫星终端之间的通信链路；用户链路指WIFI基站与用户之间的通信链路。
A WIFI application system based on satellite communication, the system mainly includes a gateway station, a communication satellite transponder, a satellite terminal and a WIFI base station. The gateway station is used to realize functions such as sending and receiving of satellite feeder link data, network resource management, and operation system management; the communication satellite transponder is used to realize the forwarding function of satellite user link data and satellite feeder link data; the satellite terminal is used for Realize the sending and receiving function of satellite user link data; WIFI base station is used to realize the wireless sending and receiving function of user link data. The satellite feed link refers to the communication link between the satellite and the gateway station; the satellite user link refers to the communication link between the satellite and the satellite terminal; the user link refers to the communication link between the WIFI base station and the user.
Description
技术领域technical field
本发明涉及一种基于卫星通信的WIFI应用系统，属于卫星通信领域。The invention relates to a WIFI application system based on satellite communication, which belongs to the field of satellite communication.
背景技术Background technique
当今社会已经进入信息化时代，人们对信息互通的需求已经越来越强烈，到了不可或缺的地步。在我国的大中城市以及经济发达地区，地面宽带网络的覆盖几乎可达100％。但是，在经济不发达地区，特别是在偏远山区、乡村或某些特定应急现场，往往网络还不能覆盖或网络遭受破坏，造成通信不畅或通信中断。卫星通信成为解决这一问题的有效途径，但传统的VSAT卫星通信由于运营成本高、安装维护难度大、频带利用率低等缺点限制了其应用。Today's society has entered the information age, and people's demand for information exchange has become increasingly strong, to the point where it is indispensable. In my country's large and medium-sized cities and economically developed areas, the coverage of terrestrial broadband networks can reach almost 100%. However, in economically underdeveloped areas, especially in remote mountainous areas, villages, or some specific emergency sites, the network is often not covered or the network is damaged, resulting in poor or interrupted communication. Satellite communication has become an effective way to solve this problem, but the disadvantages of traditional VSAT satellite communication, such as high operating cost, difficult installation and maintenance, and low frequency band utilization, limit its application.
发明内容Contents of the invention
本发明的技术解决问题是：针对现有地面宽带通信网络发展瓶颈以及传统VSAT卫星通信应用受限的现状，提供一种适用于宽带通信局域组网应用的基于卫星通信的WIFI应用系统，解决了传统的VSAT卫星通信运营成本高、安装维护难度大、频带利用率低等问题。系统不需要特殊的配置和操作就可使卫星通信和WIFI接入的技术优势和利益得到最大化，节省了卫星终端安装维护费用，提高VSAT的使用效率和卫星宽带利用率，降低了运营成本。The problem solved by the technology of the present invention is to provide a WIFI application system based on satellite communication suitable for broadband communication local area networking applications in view of the bottleneck in the development of the existing terrestrial broadband communication network and the limited application of traditional VSAT satellite communication. The problems of traditional VSAT satellite communication, such as high operating cost, difficult installation and maintenance, and low frequency band utilization, have been overcome. The system can maximize the technical advantages and benefits of satellite communication and WIFI access without special configuration and operation, save satellite terminal installation and maintenance costs, improve the efficiency of VSAT use and satellite broadband utilization, and reduce operating costs.
本发明的技术解决方案是：一种基于卫星通信的WIFI应用系统，包括网关站、通信卫星转发器、卫星终端和WIFI基站；The technical solution of the present invention is: a WIFI application system based on satellite communication, including a gateway station, a communication satellite transponder, a satellite terminal and a WIFI base station;
网关站，包括业务交换路由子系统、业务数据处理子系统、网络综合管理子系统和天线射频子系统，业务交换路由子系统负责业务数据的路由和转发功能以及提供系统与地面网络的接口，即交换路由子系统接收地面的Internet网络用户数据，经路由、交换后的数据形成基带信号包括综合网管数据和业务数据，将该综合网管数据送至网络综合管理子系统，将基带信号中的业务数据送给业务数据处理子系统，交换路由子系统接收业务数据处理子系统的数据，经交换、路由后送给Internet网络和网络综合管理子系统；Gateway station, including business switching and routing subsystem, business data processing subsystem, network integrated management subsystem and antenna radio frequency subsystem. The switching and routing subsystem receives the Internet user data on the ground, and the data after routing and switching forms a baseband signal including integrated network management data and business data, and sends the integrated network management data to the network integrated management subsystem, and transfers the business data in the baseband signal Send it to the business data processing subsystem, and the switching and routing subsystem receives the data from the business data processing subsystem, and sends it to the Internet network and network integrated management subsystem after switching and routing;
网络综合管理子系统接收业务交换路由子系统送来的综合网管数据，根据该综合网管数据进行分析，开展业务用户认证和计费管理，并为不同业务用户分配优先级和资源分配，同时对基于卫星通信的WIFI应用系统的运行状态进行实时监视；网络综合管理子系统将用户认证、用户优先级、资源分配以及信关站内出现的故障、异常报警这些信息反馈给交换路由子系统；The integrated network management subsystem receives the integrated network management data sent by the service switching and routing subsystem, analyzes the integrated network management data, conducts service user authentication and billing management, and assigns priority and resource allocation to different service users. The operation status of the WIFI application system of satellite communication is monitored in real time; the network comprehensive management subsystem feeds back information such as user authentication, user priority, resource allocation, failures and abnormal alarms in the gateway station to the switching routing subsystem;
业务数据处理子系统，包括前向链路子系统和返向链路子系统，前向链路子系统用于接收业务交换路由子系统送来的基带信号中的业务数据，经编码、组帧、调制后变成中频信号送至无线射频子系统；返向链路子系统用于接收无线射频子系统送来的中频信号，对该中频信号进行解调、解帧、解码后形成基带信号送给业务交换路由子系统，进行业务数据交换路由；The service data processing subsystem includes the forward link subsystem and the return link subsystem. The forward link subsystem is used to receive the service data in the baseband signal sent by the service switching and routing subsystem, after encoding and framing , After modulation, it becomes an intermediate frequency signal and sends it to the radio frequency subsystem; the return link subsystem is used to receive the intermediate frequency signal sent by the radio frequency subsystem, demodulate, deframe, and decode the intermediate frequency signal to form a baseband signal and send it to For the business exchange routing subsystem, perform business data exchange routing;
天线射频子系统把业务数据处理子系统送来的中频信号经上变频、功率放大后的数据发射到卫星转发器；天线射频子系统接收到卫星转发器射频信号、对该射频信号进行低噪声放大和下变频后变成射频信号送给业务数据处理子系统；The antenna radio frequency subsystem transmits the intermediate frequency signal sent by the business data processing subsystem to the satellite transponder after up-conversion and power amplification; the antenna radio frequency subsystem receives the satellite transponder radio frequency signal and performs low-noise amplification on the radio frequency signal and down-converted into a radio frequency signal sent to the business data processing subsystem;
卫星终端，包括第一天线、第一室外单元和第一室内单元，负责完成卫星用户链路数据的收发功能以及提供与WIFI基站的数据接口，第一天线将接收卫星转发器的射频信号，送给室外单元，同时将室外单元送来的射频信号发射至卫星转发器；室外单元负责将来自室内单元的中频信号经过上变频、功率放大发送到第一天线，同时将来自第一天线的射频信号经过低噪声放大、下变频后形成中频信号发送到室内单元，完成数据在射频和中频之间的转换；室内单元负责将来自WIFI基站的数据经过编码、调制后发送至室外单元，同时将来自室外单元的信号经过解调、译码过程后送给WIFI基站；The satellite terminal, including the first antenna, the first outdoor unit and the first indoor unit, is responsible for completing the sending and receiving function of satellite user link data and providing the data interface with the WIFI base station. The first antenna will receive the radio frequency signal of the satellite transponder and send it to to the outdoor unit, and at the same time transmit the radio frequency signal sent by the outdoor unit to the satellite transponder; the outdoor unit is responsible for sending the intermediate frequency signal from the indoor unit to the first antenna through up-conversion and power amplification, and simultaneously transmits the radio frequency signal from the first antenna After low-noise amplification and down-conversion, an intermediate frequency signal is sent to the indoor unit to complete the conversion of data between radio frequency and intermediate frequency; the indoor unit is responsible for encoding and modulating the data from the WIFI base station and sending it to the outdoor unit, and at the same time the data from the outdoor The signal of the unit is sent to the WIFI base station after being demodulated and decoded;
WIFI基站，包括第二天线、第二室外单元和第二室内单元，WIFI基站通过第二天线接收用户终端数据，送给室外单元，同时将室外单元送来的射频信号发射至用户终端；室外单元负责将来自室内单元的中频信号经过上变频、功率放大发送到第二天线，同时将来自第二天线的射频信号经过低噪声放大、下变频后形成中频信号发送到室内单元，完成数据在射频和中频之间的转换；室内单元负责将来自卫星终端的数据经过编码、调制后发送至室外单元，同时将来自室外单元的信号经过解调、译码过程后送给卫星终端；The WIFI base station includes the second antenna, the second outdoor unit and the second indoor unit. The WIFI base station receives user terminal data through the second antenna, sends it to the outdoor unit, and transmits the radio frequency signal sent by the outdoor unit to the user terminal; the outdoor unit Responsible for sending the IF signal from the indoor unit to the second antenna through up-conversion and power amplification, and at the same time, sending the RF signal from the second antenna to the indoor unit after low-noise amplification and down-conversion to form an IF signal. Conversion between intermediate frequencies; the indoor unit is responsible for encoding and modulating the data from the satellite terminal to the outdoor unit, and at the same time sending the signal from the outdoor unit to the satellite terminal after demodulation and decoding;
通信卫星转发器，接收卫星终端的数据，经低噪声放大、合路、变频、功率放大后送给网关站；接收网关站送来的数据经过低噪声放大、变频、分路、功率放大后发送给卫星终端。The communication satellite transponder receives the data from the satellite terminal and sends it to the gateway station after low-noise amplification, combining, frequency conversion, and power amplification; the data sent by the receiving gateway station is sent after low-noise amplification, frequency conversion, splitting, and power amplification to the satellite terminal.
本发明与现有技术相比的优点在于：The advantage of the present invention compared with prior art is:
1)通过卫星终端模块与WIFI基站模块相结合的解决方案，不需要特殊的配置和操作就可使卫星通信和WIFI接入的技术优势和利益得到最大化。与传统卫星通信每个用户都配置昂贵的卫星终端相比较，该系统节省了终端的购买和安装费用，提高传统卫星通信的使用效率和宽带利用率，降低了运营成本，为卫星通信提供新的市场动力。1) Through the solution of combining the satellite terminal module and the WIFI base station module, the technical advantages and benefits of satellite communication and WIFI access can be maximized without special configuration and operation. Compared with the expensive satellite terminal for each user of traditional satellite communication, this system saves the purchase and installation costs of the terminal, improves the efficiency of traditional satellite communication and broadband utilization, reduces operating costs, and provides a new solution for satellite communication. market dynamics.
2)本系统使用现有的卫星转发器资源，集成具有地面Internet接口的网关站、传统VSAT卫星终端模块和WIFI基站模块，具有部署方便、投资小、建设快、易扩展等特点。系统还可通过WIFI基站模块通过无线远跳技术实现数公里远程链接以形成另一远端覆盖，无需新的卫星链接便可扩展系统覆盖范围。2) This system uses existing satellite transponder resources, integrates gateway stations with ground Internet interfaces, traditional VSAT satellite terminal modules and WIFI base station modules, and has the characteristics of convenient deployment, small investment, fast construction, and easy expansion. The system can also use the WIFI base station module to realize several kilometers of long-distance links through wireless long-hop technology to form another long-end coverage, and the system coverage can be expanded without the need for new satellite links.
附图说明Description of drawings
图1为本发明系统组成结构图；Fig. 1 is a structural diagram of the system composition of the present invention;
图2为本发明系统网关站示意图；Fig. 2 is a schematic diagram of the system gateway station of the present invention;
图3为本发明系统卫星终端示意图；Fig. 3 is a schematic diagram of the satellite terminal of the system of the present invention;
图4为本发明系统WIFI基站示意图；Fig. 4 is the schematic diagram of the system WIFI base station of the present invention;
图5为本发明具体实施方案示意图。Fig. 5 is a schematic diagram of a specific embodiment of the present invention.
具体实施方式detailed description
本发明的基本思路为：本发明将传统卫星通信与WIFI基站集成应用，与传统卫星通信每个用户都配置昂贵的卫星终端相比较，该系统节省了终端的购买和安装费用，提高传统卫星通信的使用效率和宽带利用率，降低了运营成本，为卫星通信提供新的市场动力。系统可通过MESH远跳技术实现数公里远程链接以形成另一远端覆盖，无需新的卫星链接便可扩展系统覆盖范围。The basic idea of the present invention is: the present invention integrates the application of traditional satellite communication and WIFI base station. Compared with the expensive satellite terminal for each user of traditional satellite communication, the system saves the purchase and installation costs of the terminal and improves the traditional satellite communication. The use efficiency and broadband utilization rate reduce operating costs and provide new market impetus for satellite communications. The system can achieve several kilometers of long-distance links through MESH long-distance hopping technology to form another long-end coverage, and the system coverage can be expanded without the need for new satellite links.
下面结合附图对本发明作进一步说明。The present invention will be further described below in conjunction with accompanying drawing.
如图1所示，一种基于卫星通信的WIFI应用系统，包括网关站、通信卫星转发器、卫星终端和WIFI基站。如图2所示，网关站(即信关站)由业务交换路由子系统(即交换路由子系统)、业务数据处理子系统、网络综合管理子系统和天线射频子系统组成，实现卫星转发器数据的收发、网络综合管理、业务数据处理、业务数据路由交换等功能。如图3所示，卫星终端由第一天线、第一室外单元和第一室内单元组成，实现卫星转发器数据的收发、业务数据处理和WIFI数据交互等功能。如图4所示，WIFI基站由第二天线、第二室外单元和第二室内单元组成，实现用户终端数据的收发、业务数据处理和卫星终端数据交互等功能。As shown in Figure 1, a WIFI application system based on satellite communication includes a gateway station, a communication satellite transponder, a satellite terminal and a WIFI base station. As shown in Figure 2, the gateway station (that is, the gateway station) is composed of a business switching routing subsystem (that is, a switching routing subsystem), a business data processing subsystem, a network integrated management subsystem, and an antenna radio frequency subsystem to realize satellite transponders. Functions such as data sending and receiving, comprehensive network management, business data processing, and business data routing and switching. As shown in Figure 3, the satellite terminal is composed of the first antenna, the first outdoor unit and the first indoor unit, and realizes functions such as sending and receiving satellite transponder data, processing business data, and interacting with WIFI data. As shown in Figure 4, the WIFI base station is composed of the second antenna, the second outdoor unit and the second indoor unit, which realize functions such as sending and receiving user terminal data, business data processing and satellite terminal data interaction.
为了说明本方法具体实施方式，按照如图5所示搭建一套基于卫星通信的WIFI应用系统，包括1套通信卫星转发器、1套网关站、1套卫星终端、21套WIFI基站以及3套用户终端。假设通信卫星转发器使用10MHz带宽Ku频段卫星资源，网关站使用9m口径Ku频段天线，配置750W功放，网关站提供地面宽带网络接口，卫星终端使用1m口径Ku频段VSAT天线，配置30W功放，WIFI基站使用扇形天线室外无线WIFI基站，6套用户终端。2套WIFI基站间隔1.5Km放置，卫星终端与WIFI基站1通过网线连接，WIFI基站2和WIFI基站1通过无线链路连接。In order to illustrate the specific implementation of this method, a WIFI application system based on satellite communication is built as shown in Figure 5, including 1 set of communication satellite transponders, 1 set of gateway stations, 1 set of satellite terminals, 21 sets of WIFI base stations and 3 sets of user terminal. Assume that the communication satellite transponder uses 10MHz bandwidth Ku-band satellite resources, the gateway station uses a 9m-caliber Ku-band antenna, and is equipped with a 750W power amplifier. Use sector antenna outdoor wireless WIFI base station, 6 sets of user terminals. 2 sets of WIFI base stations are placed at an interval of 1.5Km, the satellite terminal is connected to WIFI base station 1 through a network cable, and WIFI base station 2 and WIFI base station 1 are connected through a wireless link.
网关站，包括业务交换路由子系统、业务数据处理子系统、网络综合管理子系统和天线射频子系统，业务交换路由子系统负责业务数据的路由和转发功能以及提供系统与地面网络的接口，即交换路由子系统接收地面的Internet网络用户数据，经路由、交换后的数据形成基带信号包括综合网管数据和业务数据，将该综合网管数据送至网络综合管理子系统，将基带信号中的业务数据送给业务数据处理子系统，交换路由子系统接收业务数据处理子系统的数据，经交换、路由后送给Internet网络和网络综合管理子系统；Gateway station, including business switching and routing subsystem, business data processing subsystem, network integrated management subsystem and antenna radio frequency subsystem. The switching and routing subsystem receives the Internet user data on the ground, and the data after routing and switching forms a baseband signal including integrated network management data and business data, and sends the integrated network management data to the network integrated management subsystem, and transfers the business data in the baseband signal Send it to the business data processing subsystem, and the switching and routing subsystem receives the data from the business data processing subsystem, and sends it to the Internet network and network integrated management subsystem after switching and routing;
网络综合管理子系统接收业务交换路由子系统送来的综合网管数据，根据该综合网管数据进行分析，开展业务用户认证和计费管理，并为不同业务用户分配优先级和资源分配，同时对基于卫星通信的WIFI应用系统的运行状态进行实时监视；网络综合管理子系统将用户认证、用户优先级、资源分配以及信关站内出现的故障、异常报警这些信息反馈给交换路由子系统；The integrated network management subsystem receives the integrated network management data sent by the service switching and routing subsystem, analyzes the integrated network management data, conducts service user authentication and billing management, and assigns priority and resource allocation to different service users. The operation status of the WIFI application system of satellite communication is monitored in real time; the network comprehensive management subsystem feeds back information such as user authentication, user priority, resource allocation, failures and abnormal alarms in the gateway station to the switching routing subsystem;
业务数据处理子系统，包括前向链路子系统和返向链路子系统，前向链路子系统用于接收业务交换路由子系统送来的基带信号中的业务数据，经编码、组帧、调制后变成中频信号送至无线射频子系统；返向链路子系统用于接收无线射频子系统送来的中频信号，对该中频信号进行解调、解帧、解码后形成基带信号送给业务交换路由子系统，进行业务数据交换路由；The service data processing subsystem includes the forward link subsystem and the return link subsystem. The forward link subsystem is used to receive the service data in the baseband signal sent by the service switching and routing subsystem, after encoding and framing , After modulation, it becomes an intermediate frequency signal and sends it to the radio frequency subsystem; the return link subsystem is used to receive the intermediate frequency signal sent by the radio frequency subsystem, demodulate, deframe, and decode the intermediate frequency signal to form a baseband signal and send it to For the business exchange routing subsystem, perform business data exchange routing;
天线射频子系统把业务数据处理子系统送来的中频信号经上变频、功率放大后的数据发射到卫星转发器；天线射频子系统接收到卫星转发器射频信号、对该射频信号进行低噪声放大和下变频后变成射频信号送给业务数据处理子系统；The antenna radio frequency subsystem transmits the intermediate frequency signal sent by the business data processing subsystem to the satellite transponder after up-conversion and power amplification; the antenna radio frequency subsystem receives the satellite transponder radio frequency signal and performs low-noise amplification on the radio frequency signal and down-converted into a radio frequency signal sent to the business data processing subsystem;
卫星终端，包括第一天线、第一室外单元和第一室内单元，负责完成卫星用户链路数据的收发功能以及提供与WIFI基站的数据接口，第一天线将接收卫星转发器的射频信号，送给室外单元，同时将室外单元送来的射频信号发射至卫星转发器；室外单元负责将来自室内单元的中频信号经过上变频、功率放大发送到第一天线，同时将来自第一天线的射频信号经过低噪声放大、下变频后形成中频信号发送到室内单元，完成数据在射频和中频之间的转换；室内单元负责将来自WIFI基站的数据经过编码、调制后发送至室外单元，同时将来自室外单元的信号经过解调、译码过程后送给WIFI基站；The satellite terminal, including the first antenna, the first outdoor unit and the first indoor unit, is responsible for completing the sending and receiving function of satellite user link data and providing the data interface with the WIFI base station. The first antenna will receive the radio frequency signal of the satellite transponder and send it to to the outdoor unit, and at the same time transmit the radio frequency signal sent by the outdoor unit to the satellite transponder; the outdoor unit is responsible for sending the intermediate frequency signal from the indoor unit to the first antenna through up-conversion and power amplification, and simultaneously transmits the radio frequency signal from the first antenna After low-noise amplification and down-conversion, an intermediate frequency signal is sent to the indoor unit to complete the conversion of data between radio frequency and intermediate frequency; the indoor unit is responsible for encoding and modulating the data from the WIFI base station and sending it to the outdoor unit, and at the same time the data from the outdoor The signal of the unit is sent to the WIFI base station after being demodulated and decoded;
WIFI基站，包括第二天线、第二室外单元和第二室内单元，WIFI基站通过第二天线接收用户终端数据，送给室外单元，同时将室外单元送来的射频信号发射至用户终端；室外单元负责将来自室内单元的中频信号经过上变频、功率放大发送到第二天线，同时将来自第二天线的射频信号经过低噪声放大、下变频后形成中频信号发送到室内单元，完成数据在射频和中频之间的转换；室内单元负责将来自卫星终端的数据经过编码、调制后发送至室外单元，同时将来自室外单元的信号经过解调、译码过程后送给卫星终端；The WIFI base station includes the second antenna, the second outdoor unit and the second indoor unit. The WIFI base station receives user terminal data through the second antenna, sends it to the outdoor unit, and transmits the radio frequency signal sent by the outdoor unit to the user terminal; the outdoor unit Responsible for sending the IF signal from the indoor unit to the second antenna through up-conversion and power amplification, and at the same time, sending the RF signal from the second antenna to the indoor unit after low-noise amplification and down-conversion to form an IF signal. Conversion between intermediate frequencies; the indoor unit is responsible for encoding and modulating the data from the satellite terminal to the outdoor unit, and at the same time sending the signal from the outdoor unit to the satellite terminal after demodulation and decoding;
通信卫星转发器，接收卫星终端的数据，经低噪声放大、合路、变频、功率放大后送给网关站；接收网关站送来的数据经过低噪声放大、变频、分路、功率放大后发送给卫星终端。The communication satellite transponder receives the data from the satellite terminal and sends it to the gateway station after low-noise amplification, combining, frequency conversion, and power amplification; the data sent by the receiving gateway station is sent after low-noise amplification, frequency conversion, splitting, and power amplification to the satellite terminal.
系统宽带接入业务流程如下：The system broadband access business process is as follows:
网关站通过地面网络接口接入宽带业务数据，卫星终端通过卫星用户链路返向信道发起上网业务申请，将此业务申请提交给网关站网络综合管理模块，网络综合管理模块完成对卫星终端信息的鉴权确认，并根据当前网络资源状态给出此申请的应答，应答通过卫星馈电链路前向信道回到发起申请的卫星终端。卫星终端接入系统后，通过WIFI基站1为用户终端1、用户终端2和用户终端3提供无线上网服务，WIFI基站2通过无线链路与WIFI基站1连接后，为用户终端4、用户终端5和用户终端6提供无线上网服务。同时，网关站网络综合管理模块开始对用户业务数据流量进行计费，并对系统网络运行状态进行监测报警。The gateway station accesses the broadband service data through the ground network interface, and the satellite terminal initiates an online service application through the return channel of the satellite user link, and submits the service application to the network comprehensive management module of the gateway station, and the network comprehensive management module completes the satellite terminal information Authentication is confirmed, and a response to the application is given according to the current network resource status, and the response is returned to the satellite terminal that initiated the application through the forward channel of the satellite feeder link. After the satellite terminal is connected to the system, WIFI base station 1 provides wireless Internet access services for user terminal 1, user terminal 2 and user terminal 3. After WIFI base station 2 is connected to WIFI base station 1 through a wireless link, it provides user terminal and user terminal 6 to provide wireless Internet access service. At the same time, the comprehensive network management module of the gateway station starts to charge the user business data flow, and monitors and alarms the system network operation status.
本发明说明书中未作详细描述的内容属本领域技术人员的公知技术。The content that is not described in detail in the description of the present invention belongs to the well-known technology of those skilled in the art.
Claims (1)
- A kind of 1. WIFI application systems based on satellite communication, it is characterised in that：Including gateway station, communication satellite coverage, defend Star terminal and WIFI base stations；Gateway station, including operation exchange routing subsystem, business data processing subsystem, network synthesis management subsystem and antenna Radio Frequency Subsystem, operation exchange routing subsystem are responsible for the route and forwarding capability and offer system and terrestrial network of business datum The interface of network, i.e. operation exchange routing subsystem receive the Internet network user data on ground, the number after routeing, exchanging Include comprehensive network management data and business datum according to baseband signal is formed, the comprehensive network management data is delivered into network synthesis management subsystem System, give the business datum in baseband signal to business data processing subsystem, operation exchange routing subsystem receives business number According to the data of processing subsystem, Internet network and network synthesis management subsystem are given after exchanging, routeing；Network synthesis management subsystem receives the comprehensive network management data that operation exchange routing subsystem is sent, according to the comprehensive network management Data are analyzed, commence business user authentication and accounting management, and distribute priority and resource allocation for different business user, The running status of the WIFI application systems based on satellite communication is monitored in real time simultaneously；Network synthesis management subsystem will be used Failure, these feedback of the information of abnormal alarm occurred in family certification, User Priority, resource allocation and gateway station are handed over to business Change routing subsystem；Business data processing subsystem, including forward link subsystem and return link subsystem, forward link subsystem are used for The business datum in the baseband signal that operation exchange routing subsystem is sent is received, becomes intermediate frequency letter after encoded, framing, modulation Number deliver to less radio-frequency subsystem；Return link subsystem is used to receive the intermediate-freuqncy signal that less radio-frequency subsystem is sent, to this Intermediate-freuqncy signal, which is demodulated, solve frame, baseband signal is formed after decoding gives operation exchange routing subsystem, carries out business datum friendship Change route；Data of the antenna rf subsystem the intermediate-freuqncy signal that business data processing subsystem is sent after up-conversion, power amplification It is transmitted into satellite repeater；Antenna rf subsystem receives satellite repeater radiofrequency signal, carries out low noise to the radiofrequency signal Become radiofrequency signal after sound amplification and down coversion and give business data processing subsystem；ICBM SHF satellite terminal, including first antenna, the first outdoor unit and the first indoor unit, it is responsible for completing satellite user link data Transmission-receiving function and provide and will receive the radiofrequency signal of satellite repeater with the data-interfaces of WIFI base stations, first antenna, and give To outdoor unit, while by the emission of radio frequency signals that outdoor unit is sent to satellite repeater；Outdoor unit is responsible for from room The intermediate-freuqncy signal of interior unit is sent to first antenna by up-conversion, power amplification, while the radio frequency from first antenna is believed Intermediate-freuqncy signal is formed number after low noise amplification, down coversion and is sent to indoor unit, completes data between radio frequency and intermediate frequency Conversion；Indoor unit is responsible for by the data from WIFI base stations are encoded, are sent after modulation to outdoor unit, while in the future From the signal of outdoor unit is demodulated, gives WIFI base stations after decoding process；WIFI base stations, including the second antenna, the second outdoor unit and the second indoor unit, WIFI base stations are received by the second antenna User terminal data, gives outdoor unit, while by the emission of radio frequency signals that outdoor unit is sent to user terminal；Outdoor unit It is responsible for the intermediate-freuqncy signal from indoor unit being sent to the second antenna by up-conversion, power amplification, while second will be come from The radiofrequency signal of antenna forms intermediate-freuqncy signal after low noise amplification, down coversion and is sent to indoor unit, completes data and is penetrating Conversion between frequency and intermediate frequency；Indoor unit is responsible for the data from ICBM SHF satellite terminal are encoded, are sent after modulation to outdoor Unit, while by the signal from outdoor unit is demodulated, gives ICBM SHF satellite terminal after decoding process；Communication satellite coverage, the data of ICBM SHF satellite terminal are received, net is given after low noise amplification, combining, frequency conversion, power amplification Close station；Receive the data that gateway station is sent and be sent to ICBM SHF satellite terminal after low noise amplification, frequency conversion, branch, power amplification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410742476.2A CN104506228B (en) | 2014-12-05 | 2014-12-05 | A kind of WIFI application systems based on satellite communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410742476.2A CN104506228B (en) | 2014-12-05 | 2014-12-05 | A kind of WIFI application systems based on satellite communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104506228A CN104506228A (en) | 2015-04-08 |
| CN104506228B true CN104506228B (en) | 2018-02-09 |
Family
ID=52947951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410742476.2A Active CN104506228B (en) | 2014-12-05 | 2014-12-05 | A kind of WIFI application systems based on satellite communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104506228B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106788665A (en) * | 2016-11-09 | 2017-05-31 | 航天恒星科技有限公司 | The portable satellite terminal of integrated wifi module |
| CN106788680A (en) * | 2016-12-29 | 2017-05-31 | 湖南泰达讯科技有限公司 | Cluster satellite communication apparatus and its communication means |
| CN108810020B (en) * | 2017-12-08 | 2021-05-18 | 中国科学院信息工程研究所 | Spatial internet management and control method and system |
| CN108667469B (en) * | 2018-04-18 | 2024-03-08 | 北京宏达科美科技有限公司 | Two-way satellite communication terminal capable of adapting to small inclination angle communication satellite and high-speed motion condition |
| CN108832991A (en) * | 2018-06-21 | 2018-11-16 | 深圳市天海世界卫星通信科技有限公司 | One kind being based on satellite network voice communication optimization system |
| CN110730029B (en) * | 2019-09-25 | 2025-03-11 | 南京熊猫汉达科技有限公司 | Multi-mode wireless satellite communication terminal, system and communication method |
| CN114884558A (en) * | 2022-04-08 | 2022-08-09 | 深圳市星楷通讯设备有限公司 | Shipborne satellite information query method based on terminal |
| CN115001563B (en) * | 2022-05-17 | 2024-08-20 | 中星国恒(北京)科技有限公司 | VSAT satellite communication resource unified distribution system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7113780B2 (en) * | 1992-03-06 | 2006-09-26 | Aircell, Inc. | System for integrating an airborne wireless cellular network with terrestrial wireless cellular networks and the public switched telephone network |
| CN101573894B (en) * | 2006-09-26 | 2013-12-04 | 维尔塞特公司 | Improved Spot Beam Satellite System |
| US20100180005A1 (en) * | 2009-01-12 | 2010-07-15 | Viasat, Inc. | Cache cycling |
| CN202873085U (en) * | 2012-11-06 | 2013-04-10 | 北京和协芯宇科技有限公司 | Big Dipper WiFi base station |
| CN103198224A (en) * | 2013-04-15 | 2013-07-10 | 成都林海电子有限责任公司 | Satellite-communication-based remote medical system |
-
2014
- 2014-12-05 CN CN201410742476.2A patent/CN104506228B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104506228A (en) | 2015-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104506228B (en) | A kind of WIFI application systems based on satellite communication | |
| Palattella et al. | Enabling internet of everything everywhere: LPWAN with satellite backhaul | |
| Bertenyi | 5G evolution: What's next? | |
| CN114204982B (en) | High-low orbit general-purpose wide-frequency satellite communication system and method | |
| CN106937256B (en) | A kind of cooperation multicast transmission method based on non-orthogonal multiple access technology | |
| Alagoz et al. | Energy efficiency and satellite networking: A holistic overview | |
| CN218041397U (en) | Converged communication equipment | |
| CN101674111B (en) | Communication system for mobile devices in the air | |
| CN104683993B (en) | Satellite and land domain collaborative multi communication system | |
| CN106850048B (en) | Satellite communication method, device and satellite communication system | |
| KR101614807B1 (en) | National disaster system for relaying communication network load balancing | |
| CN102761883B (en) | Multi-hop broadband wireless communication system and wireless node device thereof | |
| KR20150086900A (en) | VSAT system for hybrid operation of star-mesh network and method for controlling thereof | |
| CN104683013A (en) | Geosynchronous orbit satellite communication access system and access method | |
| CN114614895A (en) | Signal transmission method, multi-port repeater, radio remote unit and distribution system | |
| CN102185625A (en) | Portable system for transmitting field geological investigation data in real time | |
| CN110445529A (en) | A kind of satellite things-internet gateway station and information transferring method | |
| CN204707124U (en) | A kind of geo-synchronous orbit satellite telecommunications access systems | |
| CN116801211A (en) | A 5G communication system and communication method for extremely thin coal seam mining | |
| Yahia et al. | On the performance of HAPS-assisted hybrid RF-FSO multicast communication systems | |
| US20120124627A1 (en) | Terminal for repeating through mbs communication network and method of repeating using the same | |
| CN106888466B (en) | Method and device for realizing remote communication of mobile base station | |
| KR20140042129A (en) | Satellite communication system and method based dvb-rcs | |
| CN209545591U (en) | A kind of unattended satellite communication station | |
| CN116094568A (en) | VSAT central station satellite communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |