CN102355649B - Mobile communication base station in emergency communication and emergency communication method thereof - Google Patents
Mobile communication base station in emergency communication and emergency communication method thereof Download PDFInfo
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- CN102355649B CN102355649B CN201110234987.XA CN201110234987A CN102355649B CN 102355649 B CN102355649 B CN 102355649B CN 201110234987 A CN201110234987 A CN 201110234987A CN 102355649 B CN102355649 B CN 102355649B
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Abstract
The invention provides a mobile communication base station in emergency communication and an emergency communication method thereof, wherein the emergency communication is realized when a link between a base transceiver station (BTS) and a base station controller (BSC) in a GSM (Global System for Mobile Communication) network is disconnected. The mobile communication base station comprises a transceiver module, an interface module, a satellite communication module and a transceiving antenna; the transceiver module and a BTS in the GSM network are identical in function; the interface module is used for realizing interconversion between an Abis interface and an IP (Internet Protocol) interface; the satellite communication module comprise a baseband module and a radio frequency module, the baseband module is used for realizing baseband processing for data, and the radio frequency module is used for completing up/down-conversion functions; and a transceiving antenna is used for completing the function of transceiving data in a satellite link. Under a disaster condition, when the link between the BTS and the BSC in the GSM network is damaged to result in communication interruption, the mobile communication base station in emergency communication, provided by the invention, can be erected in a disaster place, one end of the mobile communication base station is connected with an original GSM network communication tower, and the other end of the mobile communication base station is accessed into a satellite link, and the mobile communication network is recovered in connection.
Description
Technical field
The present invention relates to mobile communication base station and emergency communication method thereof in a kind of emergency communication.
Background technology
Digital mobile communication gsm system is made up of a series of functional units, be divided into travelling carriage (MS), network subsystem (NSS), base station sub-system (BSS), several major parts such as operation and maintenance sub system (0SS), wherein base station sub-system is made up of base station transceiver (BTS) and base station controller (BSC).Between BTS and BSC, be connected by Abis mouth, a side of BTS is connected with travelling carriage (MS) by wave point, a side of BSC is connected with switch, and multiple base station transceivers (BTS) are connected to same base station controller (BSC).From function, BTS is mainly responsible for wireless transmission, and BSC is mainly responsible for control and management.
In the time that disaster occurs, the link between BTS and BSC cuts off, and base station cannot be connected with GSM network, causes serious consequence.
For calamity emergency, communication has multiple solution at present, Huawei proposes a kind of communication system of interrupting for solving terrestrial links, this system has two cover communication units at BSC end, main part of communication unit is terrestrial links unit, backup link is satellite link unit, in the time that main part of link disconnects, use backup satellite link.This method need to be set up respectively two cover communications facilitys, base station design relative complex at BSC and BTS end; And in the time that disaster occurs, two cover communications facilitys concentrate placement easily to cause it to suffer damage simultaneously.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of and connect simply, apply the mobile communication base station in emergency communication easily, can in the time of ground network communication disruption, keep being connected with BSC unimpeded, realize the emergency communication under hazardous condition.
The present invention includes following technical scheme:
A mobile communication base station in emergency communication, realizes emergency communication when the link between base station transceiver and the base station controller of GSM network disconnects; It is characterized in that: described mobile communication base station comprises Transceiver Module interface module, satellite communication module and dual-mode antenna; Transceiver Module completes the function of access GSM network, and is connected with mobile terminal by wireless air interface; Interface module completes the interface conversion between Abis interface and IP interface; Satellite communication module mainly complete with the data of satcom synchronize, data receiver sends, IP interface and satellite link interface conversion function; Dual-mode antenna completes the data receiver sending function of satellite link.
Described satellite communication module is made up of Base Band Unit and radio frequency unit.
Described Base Band Unit comprises baseband processing module and ifd module; Baseband processing module is realized protocol conversion between data receiver, the parsing of forward link signaling, time and Frequency Synchronization, the generation of reverse link burst packets, burst modulation, frequency hopping, Ethernet and satellite network.
Described radio frequency unit comprises low noise block (LNB) and up-converter module (BUC), and wherein said low noise block (LNB) realizes data down-conversion, and described up-converter module (BUC) is realized data up-conversion.Described dual-mode antenna is the satellite antenna of a bore 1.2m-2.4m.
Described interface module comprises E1 LI(link interface) chip and protocol conversion module.
Communication tower that described Transceiver Module is connected with original base station transceiver connects, for replace the base station transceiver of original GSM network during with the disconnection of base station controller link at base station transceiver.
A method of using the mobile communication base station in above-mentioned emergency communication to carry out emergency communication, realizes emergency communication when the link between base station transceiver and the base station controller of GSM network disconnects; It is characterized in that: disaster scene is set up in the mobile communication base station in described emergency communication, and the one end, mobile communication base station in described emergency communication connects local gsm communication tower, one end connects satellite link; For receiver, data are mail to satellite link by described base station controller, and the data that the mobile communication base station reception satellite link in described emergency communication is sent are processed, and mail to travelling carriage by described gsm communication tower; For sending link, the mobile communication base station in described emergency communication receives the mobile station data that gsm communication tower is sent here, sends to passback satellite link through processing, and link is forwarded to described base station controller with satellite via satellite, completes the transmission of passback data.
Compared with prior art, tool has the following advantages in the present invention:
It is high that mobile communication base station in described emergency communication has flexibility, and movably feature can be tackled the emergency communication requirement under hazardous condition;
Mobile communication base station in described emergency communication, has and connects simply, applies feature easily.In the time that disaster occurs, base station is erected to disaster place, be connected with former GSM base station communication tower, the realization of can communicating by letter is via satellite connected with the quick of travelling carriage and BSC, ensures that communication is unimpeded.
Accompanying drawing explanation
Fig. 1 is architecture of base station schematic diagram of the present invention;
Fig. 2 is satellite communication module schematic diagram of the present invention;
Fig. 3 is existing GSM network configuration;
Fig. 4 is Emergency Communications Network structure of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the mobile communication base station of inventing in described a kind of emergency communication is elaborated.
As shown in Figure 3, in situation about occurring without disaster, between BTS (base station transceiver) and BSC (base station controller), be connected by Abis interface, BSC is connected with MSC (mobile switching centre), between them, connect by A interface, be connected to core net by MSC again, to guarantee and other devices communicatings that are positioned at other places.
As shown in Figure 4, the course of work of the mobile communication base station in described emergency communication is as follows: in the time that disaster occurs, between GSM network B TS and BSC, link cuts off, cause communication disruption, need to be switched to the mobile communication base station in the described emergency communication of invention by BTS base station equipment, at this moment disaster scene can be set up in the mobile communication base station in the described emergency communication of invention, this one end, base station connects gsm communication tower, and one end connects satellite link.Access step is as follows: first make this base station be connected with local gsm communication tower, configuration parameter, make the parameter of transceiver of the mobile communication base station in described emergency communication identical with former BTS parameter, with access GSM network, finally carry out automatically star being made to its access satellite communication system, completed the initialization procedure of the mobile communication base station in described emergency communication.For receiver, data are mail to satellite link by BSC, and the data that base station reception satellite link is sent are processed, and mail to travelling carriage by gsm communication tower; For sending link, base station receives the mobile station data that gsm communication tower is sent here, sends to passback satellite link through processing, and link is forwarded to BSC with satellite via satellite, has completed the transmission of passback data.So just complete emergency communication process when link disconnects between BTS and BSC.
Mobile communication base station in the described emergency communication equipment that link is connected with the BSC that is positioned at other places is via satellite connected; Base station utilizes the bidirectional communication link that satellite provides to serve for user provides ground communication network insertion.
As shown in Figure 1, the mobile communication base station in described emergency communication comprises Transceiver Module, interface module, four parts of satellite communication module and dual-mode antenna.Interface between Transceiver Module and interface module is Abis interface, and the interface between interface module and satellite communication module is IP interface, is radiofrequency signal between satellite communication module and dual-mode antenna.
Satellite link is built in mobile communication base station in described emergency communication between disaster scene and BSC.Mobile communication base station in described emergency communication connects local mobile communication base station communication tower at disaster scene, utilizes the communication antenna and the travelling carriage that have set up interconnected.
BTS in function and structure and the gsm system of described Transceiver Module is suitable, and Transceiver Module is connected with original mobile base station antenna, realizes two-way connection of Um air interface between travelling carriage.
Between described Transceiver Module and interface module, transmit E1 link signal, and between interface modular converter, signaling interface is Abis interface.
The interface module of the mobile communication base station in described emergency communication realizes the interface conversion between Abis interface and IP interface, and Abis interface is the interface between BTS and BSC in GSM network, and IP interface is Ethernet interface.
Described dual-mode antenna is the Ku band satellite antenna of a bore 1.2m-2.4m, realizes the bidirectional transmit-receive function of signal.
The course of work of the each module in mobile communication base station in described emergency communication is as described below: Transceiver Module completes the function of BTS in former GSM network, specifically describe as to be connected with travelling carriage by wave point, be responsible for wireless transmission, between the standing part of network and wireless portion, provide relaying.Interface modular converter completes the conversion between Abis interface and IP interface, comprises that E1 link data frame forms and data are extracted, and IP seals installation and dismantling bag, Abis interface and the conversion of IP interface protocol etc.Satellite communication module completes with the data of satcom synchronizes, and data receiver sends, Ethernet interface and satellite link interface conversion function, and dual-mode antenna completes the data receiver sending function of satellite link.
As shown in Figure 2, described satellite communication module, hardware is divided into Base Band Unit and radio frequency unit two parts.Described radio-frequency module is made up of low noise block LNB (containing low-converter) and up-converter module BUC (containing upconverter), and wherein LNB realizes data down-conversion, and BUC realizes data up-conversion.Base Band Unit is made up of ifd module, baseband processing module.Baseband processing module is realized protocol conversion between data receiver, the parsing of forward link signaling, time and Frequency Synchronization, the generation of reverse link burst packets, burst modulation, frequency hopping, Ethernet and satellite network.The major function of satellite communication module comprises time and the Frequency Synchronization of satellite communication network, and data receiver sends, Ethernet and satellite network protocol conversion etc.
Described interface module, realizes the conversion between E1 business datum and IP operation data, and E1 business is the business datum between BTS and BSC in GSM network, and IP operation data are Ethernet service data.Described interface modular converter comprises E1 LI(link interface) chip and protocol conversion module; Described interface modular converter will complete following process: in the time that data send, first adopt ripe E1 LI(link interface) chip to process data, data through the processing of described E1 interface chip deposit buffering area in, protocol conversion module is processed from extracting data in buffering area, data are after treatment IP wrapper, send into satellite communication module; In the time of data receiver, first protocol conversion module is converted to E1 link data by the IP data of reception, deposits buffering area in, and E1 LI(link interface) chip takes out data by buffering area and processes, and output data are sent into transceiver.
Be more than preferred embodiment of the present invention, all changes of doing according to the technology of the present invention, when the function producing does not exceed the scope of technical solution of the present invention, all belong to protection scope of the present invention.
Claims (2)
1. the mobile communication base station in emergency communication, realizes emergency communication when the link between base station transceiver and the base station controller of GSM network disconnects; It is characterized in that: described mobile communication base station comprises the Transceiver Module connecting successively, interface module, satellite communication module and dual-mode antenna; Described Transceiver Module completes the function of access GSM network, and is connected with mobile terminal by wireless air interface; Described interface module completes the interface conversion between Abis interface and IP interface; Described satellite communication module mainly complete with the data of satcom synchronize, data receiver sends, IP interface and satellite link interface conversion function; Described dual-mode antenna completes the data receiver sending function of satellite link; Described satellite communication module is made up of Base Band Unit and radio frequency unit; Described Base Band Unit comprises baseband processing module and ifd module; Baseband processing module is realized protocol conversion between data receiver, the parsing of forward link signaling, time and Frequency Synchronization, the generation of reverse link burst packets, burst modulation, frequency hopping, Ethernet and satellite network; Described radio frequency unit comprises low noise block and up-converter module, and wherein said low noise block realizes data down-conversion, and described up-converter module is realized data up-conversion; Described dual-mode antenna is the satellite antenna of a bore 1.2m-2.4m; Described interface mould certainly comprises E1 LI(link interface) chip and protocol conversion module; Communication tower that described Transceiver Module is connected with the base station transceiver of original GSM network connects, for replace the base station transceiver of original GSM network during with the disconnection of base station controller link at base station transceiver.
2. a method of using the mobile communication base station in emergency communication claimed in claim 1 to carry out emergency communication, when disconnecting, realizes link between base station transceiver and the base station controller of GSM network emergency communication, it is characterized in that: disaster scene is set up in the mobile communication base station in described emergency communication, one end, mobile communication base station in described emergency communication connects local gsm communication tower, and one end connects satellite link; For receiver, data are mail to satellite link by described base station controller, and the data that the mobile communication base station reception satellite link in described emergency communication is sent are processed, and mail to travelling carriage by described gsm communication tower; For sending link, the mobile communication base station in described emergency communication receives the mobile station data that gsm communication tower is sent here, sends to passback satellite link through processing, and link is forwarded to described base station controller with satellite via satellite, completes the transmission of passback data;
The initialization access step of the mobile communication base station in described emergency communication is as follows: first make the mobile communication base station in this emergency communication be connected with local gsm communication tower, configuration parameter, make the parameter of Transceiver Module of the mobile communication base station in described emergency communication identical with former base station transceiver parameter, with access GSM network, finally carry out automatically star being made to its access satellite communication system.
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| EP2713574B1 (en) * | 2012-09-26 | 2021-06-09 | Alcatel Lucent | Resilient packet data connectivity in a cellular network |
| CN106341322A (en) * | 2016-08-28 | 2017-01-18 | 航天恒星科技有限公司 | Link switching method and system |
| CN109451598A (en) * | 2018-09-29 | 2019-03-08 | 浙江宁远塔桅制造有限公司 | A kind of hand propelled emergency communication station |
| CN112104409B (en) * | 2020-11-01 | 2021-02-19 | 北京天御云安科技有限公司 | IP network communication maintaining method for terminal mobile access satellite system |
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| CN101848561B (en) * | 2009-03-25 | 2013-01-23 | ***通信集团公司 | Signal transmission method and wireless communication system |
| CN101720135B (en) * | 2009-11-30 | 2012-02-29 | 成都林海电子有限责任公司 | Satellite-ground integrated mobile communication system |
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