CN100440989C

CN100440989C - System and method for implementing satellite transmission

Info

Publication number: CN100440989C
Application number: CNB2004100084516A
Authority: CN
Inventors: 蒋晔; 欧阳琪
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2004-03-10
Filing date: 2004-03-10
Publication date: 2008-12-03
Anticipated expiration: 2024-03-10
Also published as: CN1667977A

Abstract

The present invention discloses a system for realizing satellite transmission, which comprises a mobile communication system and a satellite transmission system, wherein the mobile communication system transmits a service transmission resource request or release request to the satellite transmission system through a fixed satellite transmission link preassigned and used for signaling transmission. According to the received resource request or release request, the satellite transmission system assigns or releases satellite transmission resources used for service transmission. The present invention also discloses a method for realizing satellite transmission. In the method, the satellite transmission resources used for signaling transmission are preassigned for the mobile communication system, while satellite links used for service transmission are assigned for the mobile communication system when the system has service requests. Finally, the corresponding satellite links are released when the service finishes. Using the system and the method of the present invention, not only can the rental expense of the satellite links be greatly decreased, but also appropriate assignment and usage of the satellite transmission resources can be realized.

Description

A kind of system and method for realizing satellite transmits

Technical field

The present invention relates to mobile communication technology and communication technology of satellite, particularly relate to a kind of system and method for realizing satellite transmits.

Background technology

Global system for mobile communications (Global System for Mobile Communications, GSM), code division multiple access (Code Divided Multiple Address, CDMA), Wideband Code Division Multiple Access (WCDMA) (WideCDMA, WCDMA), CDMA 2000 mobile communication system such as (CDMA2000) generally includes several subsystems, the interface data transmission between interface data between each subsystem and the subsystem internal user data equipment is finished by transmission system.These interfaces comprise (the Base Transceiver Station of base transceiver station in the gsm system, BTS) with base station controller (Base Station Controller, BSC) Abis interface between, (the Mobile SwitchCenter of BSC and mobile switching centre in the gsm system, MSC) the A interface between, NodeB and radio network controller (RadioNetwork Controller in the WCDMA system, RNC) Iub interface between, RNC and core net (Central Network in the WCDMA system, CN) the Iu interface between, Abis interface in the CDMA2000 system between BTS and BSC, A interface in the CDMA2000 system between BSC and MSC etc., but be not limited in above-mentioned interface.Transfer of data between each interface of mobile communication system need guarantee certain transmission bandwidth and transmission quality, should select suitable transmission means according to the different needs of different occasions.

The x Digital Subscriber Line road that transmission means at present commonly used comprises the Optical Fiber Transmission that is applicable to remote wire transmission, be applicable to moderate distance wire transmission (x Digital Subscriber Line, xDSL), be applicable to that the coaxial cable of closely wire transmission is direct-connected and be applicable to the modes such as microwave, satellite of wireless transmission.Every kind of transmission means all has advantage and application space separately.

The broad covered area of satellite communication, the position of building a station is subjected to the influence of topography little, and the mobility of ground station is strong.In the area of some scarcely populated areas and extreme terrains such as desert, island, utilizing satellite communication is a kind of transmission means of quick, efficient and cost-effective.

Satellite communication system is made up of satellite and ground installation, and wherein ground installation comprises satellite-transmission gear and antenna, and satellite-transmission gear comprises modulator-demodulator and transceiver, and modulator-demodulator is indoor unit (IDU), and transceiver is outdoor unit (ODU).Satellite transmits can be applied in the multiple mobile communication system, is example with the gsm system below, and the application of satellite transmits in the base station sub-system of gsm system is described.

Gsm system is made of three interconnective main subsystems, and is connected with the user by certain network interface.Three subsystems be base station sub-system (Base Station Subsystem, BSS), network subsystem (Network and Switching Subsystem, NSS) and operational subsystems (OperationsSupport System, OSS).BSS concerns the closest and the most direct element with wireless aspect in the gsm system, and it sends and receives information by wireless mode, and carries out the management of Radio Resource.On the other hand, BSS links to each other with MSC among the NSS, realizes between the mobile subscriber or communicating to connect between mobile subscriber and the local user, transfer system information and user profile etc.BSS is made up of BTS and BSC two parts functional entity.Each BSS comprises a plurality of BSC, and each BSC may command reaches hundreds of BTS.When BTS and BSC are located at same place, need not transmission equipment, but as BTS and BSC during not at same place, transmission equipment must be set, to realize that the far-end between BTS and the BSC connects, if select the mode of satellite transmits, then need be at BTS and BSC side configuration satellite-transmission gear.In the prior art, the satellite transmits mode that is applied to BSS belongs to the constant transmissions mode, so the satellite-transmission gear of BTS side and BSC side configuration is a satellite-transmission gear of supporting constant transmissions among the BSS.The networking schematic diagram that Fig. 1 is satellite-transmission gear Abis interface is used between the BTS of BSS and BSC.As can be seen from Figure 1, BTS is connected with satellite-transmission gear respectively with BSC, and each BTS is fixed and distributes the satellite resource of certain bandwidth, to set up the fixing satellite data link between BSC and each BTS.The satellite data link transmission be n in BSC and the BTS interface data * 64k valid data.When BSC when certain BTS sends data, the interface data that BSC sends is modulated by the modulator-demodulator of BSC flank guard's star transmission equipment, and broadcast TV programs by satellite by the transceiver transmit of BSC flank guard's star transmission equipment, transceiver by this BTS flank guard's star transmission equipment receives the data that come from satellite, and by the modulator-demodulator of BTS flank guard's star transmission equipment received data is carried out being transferred to this BTS after the demodulation.Vice versa, when certain BTS when BSC sends data, the interface data that this BTS sends is modulated by the modulator-demodulator of BTS flank guard's star transmission equipment, and broadcast TV programs by satellite by the transceiver transmit of BTS flank guard's star transmission equipment, transceiver by BSC flank guard's star transmission equipment receives the data that come from satellite, and by the modulator-demodulator of BSC flank guard's star transmission equipment received data is carried out being transferred to BSC after the demodulation.Like this, just realized the satellite transmits of interface data between BSC and the BTS.

Foregoing area coverage is wide though satellite communication has, the position of building a station is subjected to advantages such as the influence of topography is little, ground station's mobility is strong, and the lease expenses of satellite link is very high.Bi-directional data for ground 64k bandwidth, the bandwidth of broadcasting TV programs by satellite needs 160 to 190kHz approximately, year about 0.7～0.9 ten thousand dollar of rent of satellite link (annual rent of 1MHz satellite bandwidth is 4～50,000 dollars), the satellite link rent of long-term great number are to hinder the main bottleneck of its practical application.And the situation more for website, that band width configuration is not high from The result of statistics, will cause the serious waste of satellite transmits resource for the satellite transmits mode of the certain bandwidth of each website fixed allocation.

In sum, in the prior art, what be connected with mobile communication system is the sts satellite transmission system of only supporting constant transmissions, and whether no matter service request arranged, and the satellite transmits resource that sts satellite transmission system is the certain bandwidth of mobile communication system fixed allocation is used for professional transmission.Because the lease expenses of satellite link is higher, and prior art no matter in the mobile communication system each website not demand is arranged, the equal certain satellite transmits resource of fixed allocation, not only cause higher cost, and under the situation more at website, that band width configuration is lower, cause the significant wastage of satellite transmits resource easily.

Summary of the invention

Main purpose of the present invention is to provide a kind of system that realizes satellite transmits, and making it can be that mobile communication system is distributed the satellite transmits resource according to professional transmission requirements.

Another main purpose of the present invention is to provide a kind of method that realizes satellite transmits, makes it can be the mobile communication system satellite transmits resource of distributing according to need.

The objective of the invention is to be achieved through the following technical solutions:

A kind of system that realizes satellite transmits comprises mobile communication system and sts satellite transmission system,

Described mobile communication system, the resource request or the request that discharges that will contain the business transmission of destination address information by the pre-assigned fixed satellite transmission link that is used for the signaling transmission are sent to sts satellite transmission system;

Described sts satellite transmission system, be used in the satellite transmits resource of professional transmission for the mobile communication system branch according to the resource request of the business transmission that contains destination address information, or the resource release request of transmitting according to business discharges the satellite transmits resource that is used for professional transmission of having distributed to mobile communication system.

Described mobile communication system comprises base station sub-system.

Described base station sub-system comprises:

Base transceiver station is used to receive service request signaling, service ending signaling or business datum from travelling carriage, and is sent to second interface unit, or, receive signaling or business datum, and be sent to travelling carriage from second interface unit;

Second interface unit, be used for to be the form that sts satellite transmission system is supported from the Data Format Transform of service request signaling, service ending signaling or the business datum of base transceiver station, and transmission system is sent to first interface unit via satellite, or, to be the form that base station sub-system is supported from the signaling of satellite transmission system or the Data Format Transform of business datum, and be sent to base transceiver station;

First interface unit, be used for to be the form that base station sub-system is supported from the service request signaling of satellite transmission system or the Data Format Transform of service ending signaling, and be sent to base station controller, and ask to sts satellite transmission system according to resource request or release that the indication of base station controller generates and sends professional transmission, or, the result that will distribute from the transfer resource of satellite transmission system or discharge or the Data Format Transform of business datum are the form that base station sub-system is supported, and be sent to base station controller, or, reception is from the business datum of sts satellite transmission system, with the Data Format Transform of this business datum is the form that base station sub-system is supported, and be sent to base station controller, or, reception is from the signaling or the business datum of base station controller, with the Data Format Transform of this signaling or business datum is the form that sts satellite transmission system is supported, and is sent to sts satellite transmission system;

Base station controller, be used for according to service request signaling or the service ending signaling received, send resource request that generates professional transmission or the indication that discharges request to first interface unit, or, reception is from the transfer resource distribution of first interface unit or the result who discharges, and distribute or the result that discharges monitors transfer resource according to this transfer resource, or, reception is from the business datum of first interface unit, and this business datum is sent to mobile switching centre, or, receive signaling data or business datum, and be sent to first interface unit from mobile switching centre.

Described sts satellite transmission system comprises:

The first satellite transmits unit, be used to receive service request signaling, service ending signaling or business datum from the base transceiver station of base station sub-system, and be sent to the first satellite transmits control unit, or, reception is from the signaling or the business datum of the first satellite transmits control unit, and is sent to the base transceiver station of base station sub-system;

The first satellite transmits control unit, be used to receive service request signaling, service ending signaling or business datum from the first satellite transmits unit, and be sent to the base station controller of base station sub-system, or, reception is from the transmission resource request or the release request of base station controller, according to transmission resource request or release request distribution or release transfer resource, and transfer resource distributed or the result that discharges is sent to base station controller, or, reception is from the signaling or the business datum of base station controller, and is sent to the first satellite transmits unit.

Described sts satellite transmission system comprises:

The 3rd satellite transmits unit, be used to receive service request signaling, service ending signaling or business datum from the base transceiver station of base station sub-system, and be sent to the first satellite transmits unit, or, reception is from the signaling or the business datum of the first satellite transmits unit, and is sent to the base station controller of base station sub-system;

The first satellite transmits unit, be used to receive service request signaling, service ending signaling or business datum from the 3rd satellite transmits unit, and be sent to base station controller, or, reception is from the signaling or the business datum of base station controller, and be sent to the 3rd satellite transmits unit, or, reception is from the transmission resource request or the release request of base station controller, and be sent to the second satellite transmits control unit, or, receive from the transfer resource distribution of the second satellite transmits control unit or the result who discharges, and be sent to base station controller;

The second satellite transmits control unit, be used to receive transmission resource request or release request from the first satellite transmits unit, ask to distribute or discharge transfer resource according to transmission resource request or release, and the result of transfer resource distribution or release is sent to the first satellite transmits unit.

The described first satellite transmits control unit comprises:

Transceiver, be used for receiving via satellite service request signaling, service ending signaling or business datum from the first satellite transmits unit, and be sent to the first modulation module, or, reception comes from the signaling or the business datum of the first modulation module, and is sent to the first satellite transmits unit via satellite;

The first modulation module, be used to receive service request signaling, service ending signaling or business datum from first transceiver, this signaling or business datum are carried out the base station controller that rectification is sent to base station sub-system afterwards, or, reception is from the signaling or the business datum of base station controller, is sent to first transceiver after this signaling or business datum are modulated;

First control module, the transmission resource request or the release that are used to receive from base station controller are asked, and ask distribution or release transfer resource according to this transmission resource request or release, and the result of this transfer resource distribution or release is sent to base station controller.

The described first satellite transmits unit comprises:

Second transceiver, be used to receive service request signaling, service ending signaling or business datum from the second modulation module, and be sent to the satellite transmits control system via satellite, or, receive signaling or business datum via satellite, and be sent to the second modulation module from the satellite transmits control system;

The second modulation module, be used to receive service request signaling, service ending signaling or business datum from base transceiver station, be sent to second transceiver after this signaling or data are modulated, or, reception is carried out this signaling or data to be sent to base transceiver station after the rectification from the signaling or the business datum of second transceiver.

The described second satellite transmits control unit comprises:

The 3rd transceiver, be used for receiving via satellite transmission resource request or release request from the second satellite transmits unit, and be sent to the 3rd modulation module, or, the result that reception distributes or discharges from the transfer resource of the 3rd modulation module, and be sent to the second satellite transmits unit via satellite;

The 3rd modulation module, be used to receive transmission resource request or release request from the 3rd transceiver, this request is carried out being sent to second control module after the rectification, or, the result that reception distributes or discharges from the transfer resource of second control module is sent to the 3rd transceiver after this result modulated;

Second control module, be used to receive transmission resource request or release request from the 3rd modulation module, ask to distribute or discharge transfer resource according to this transmission resource request or release, and the result of this transfer resource distribution or release is sent to the 3rd modulation module.

The described second satellite transmits unit comprises:

The 4th transceiver, be used for receiving via satellite service request signaling from the 3rd satellite transmits unit, service ending signaling or business datum, and be sent to the 4th modulation module, or, reception is from the signaling or the business datum of the 4th modulation module, and be sent to the 3rd satellite transmits unit via satellite, or, reception is from the transmission resource request or the release request of the 4th modulation module, and be sent to the second satellite transmits control unit via satellite, or, receive via satellite from the transfer resource distribution of the second satellite transmits control unit or the result who discharges, and be sent to the 4th modulation module;

The 4th modulation module, be used to receive service request signaling from the 4th transceiver, service ending signaling or business datum, this signaling or business datum are carried out being sent to base station controller after the rectification, or, reception is from the signaling or the business datum of base station controller, this signaling or data are modulated, and be sent to the 4th transceiver, or, reception is asked from the transmission resource request or the release of base station controller, is sent to the 4th transceiver after this request is modulated, or, reception is carried out this result to be sent to base station controller after the rectification from the transfer resource distribution of the 4th transceiver or the result who discharges.

Described the 3rd satellite transmits unit comprises:

The 5th transceiver, be used for receiving via satellite signaling or business datum from the second satellite transmits unit, and this signaling or business datum be sent to the 5th modulation module, or, reception is from service request signaling, service ending signaling or the business datum of the 5th modulation module, and is sent to the second satellite transmits unit via satellite;

The 5th modulation module, be used to receive signaling or business datum from the 5th transceiver, this signaling or business datum are carried out being sent to base transceiver station after the rectification, or, reception is from service request signaling, service ending signaling or the business datum of base transceiver station, is sent to the 5th transceiver after this signaling or data are modulated.

The described first modulation module comprises a modulator-demodulator at least, is used for signaling data and the business datum transmitted between the base station controller of base station sub-system and the base transceiver station carry out modulation and demodulation systems.

The quantity of modulator-demodulator equals the quantity of base transceiver station in the described first modulation module, wherein, modulator-demodulator carry out modulation and demodulation system to signaling data and the business datum transmitted between the base station controller in the base station sub-system and the base transceiver station.

The described first modulation module comprises:

Be used for to the signaling data that transmits between the base station controller of base station sub-system and all base transceiver stations carry out modulation and demodulation system signaling modulation module and,

Be used for the business datum of transmitting between the base station controller of base station sub-system and all base transceiver stations is carried out the professional modulation module of modulation and demodulation system.

Described signaling modulation module comprises a modulator-demodulator at least, and described professional modulation module comprises at least one modulator-demodulator.

Described the 4th modulation module comprises a modulator-demodulator at least, is used for signaling data and the business datum transmitted between the base station controller of base station sub-system and the base transceiver station carry out modulation and demodulation systems.

The quantity of modulator-demodulator equals the quantity of base transceiver station in described the 4th modulation module, wherein, modulator-demodulator carry out modulation and demodulation system to signaling data and the business datum transmitted between the base station controller in the base station sub-system and the base transceiver station.

Described the 4th modulation module comprises:

The described first satellite transmits control unit further comprises:

The first webmaster module; it is in the running state information of normal or malfunction to be used to receive the expression of sending via first transceiver and the first modulation module the first satellite transmits unit; according to this running state information generating run maintenance command, and this operational maintenance command is sent to the first satellite transmits unit via the first modulation module and first transceiver.

The described second satellite transmits control unit further comprises:

The second webmaster module; it is in the running state information of normal or malfunction to be used to receive the expression of sending via the 3rd transceiver and the 3rd modulation module in the second satellite transmits unit and the 3rd satellite transmits unit; according to this running state information generating run maintenance command, and this operational maintenance command is sent to the second satellite transmits unit and the 3rd satellite transmits unit via the 3rd modulation module and the 3rd transceiver.

A kind of method that realizes satellite transmits comprises the steps: at least

A, be used in the satellite transmits resource of signaling transmission for the mobile communication system branch in advance;

B, when mobile communication system has service request, mobile communication system sends the resource request of the business transmission that contains destination address information to sts satellite transmission system by the pre-assigned satellite transmits resource that is used for the signaling transmission, sts satellite transmission system is used in the satellite transmits resource that business is transmitted according to destination address information wherein for the mobile communication system branch, for mobile communication system is set up service transmission link;

When the professional end of transmission of mobile communication system, mobile communication system sends the professional resource release request of transmitting to sts satellite transmission system by the pre-assigned satellite transmits resource that is used for the signaling transmission, and sts satellite transmission system discharges the satellite transmits resource that is used for professional transmission of distributing to mobile communication system.

Described mobile communication system comprises base station sub-system.

The described distribution satellite transmits of steps A resource is to be assignment signalling transmission link between the base station controller in the base station sub-system and each base transceiver station.

When the described service request of step B is a Mobile Originated service request by the base station controller in described base station sub-system control, and, when the called mobile station of service request correspondence is the travelling carriage of described base station controller control,

The described destination address information of step B comprises the address of the base transceiver station in the base station sub-system of controlling caller travelling carriage and called mobile station,

The described service transmission link of step B be base station controller respectively and the service transmission link between the base transceiver station of control caller travelling carriage and called mobile station.

When the described service request of step B is a Mobile Originated service request by the base station controller in described base station sub-system control, and, when the called mobile station of service request correspondence is not the travelling carriage of described base station controller control,

The described destination address information of step B comprises the address of the base transceiver station of control caller travelling carriage,

The described service transmission link of step B is the service transmission link between the base transceiver station in the base station sub-system of base station controller and control caller travelling carriage.

When the described service request of step B be base station controller in the described base station sub-system receive come from the service request of mobile switching centre the time,

The described destination address information of step B comprises the address of the base transceiver station in the base station sub-system of controlling called mobile station,

The described service transmission link of step B is the service transmission link between base station controller and the base transceiver station of controlling called mobile station.

The described release satellite transmits of step B resource is to discharge base station controller in the base station sub-system of having distributed and the service transmission link between the base transceiver station.

Step B further comprises: whether the service transmission link that the base station controller detection in the base station sub-system has distributed is just occupied, if then do not carry out the step that described transmission transfer resource discharges request and discharges transfer resource; Otherwise carry out the step that described transmission transfer resource discharges request and discharges transfer resource.

By above technical scheme as can be seen, system of the present invention is that mobile communication system is sent to sts satellite transmission system by the pre-assigned fixed satellite transmission link that is used for the signaling transmission with the resource request of business transmission or the request that discharges, sts satellite transmission system is used in the satellite transmits resource that business is transmitted according to the resource request of business transmission for the mobile communication system branch then, and perhaps the resource release request according to the business transmission discharges the satellite transmits resource that is used for business data transmission of having distributed to mobile communication system.Method of the present invention is the very little satellite transmits resource that is used for the signaling transmission of fixed allocation bandwidth, and shared most of satellite transmits resource, when service request is arranged, be used in the satellite link of professional transmission, discharge corresponding satellite link during the professional end of transmission for the mobile communication system branch.Use system and method for the present invention, when being arranged, link request distributes the satellite transmits resource, set up service transmission link, treat to discharge the satellite transmits resource after the link idle, compare with the fixed allocation satellite transmits resource of prior art, greatly reduce the bandwidth of satellite transmits, and improved the utilance of satellite resource.So, use system and method for the present invention not only can reduce the lease expenses of satellite link greatly, and can realize that the satellite transmits reasonable resources is distributed and utilization.

Description of drawings

Fig. 1 is that satellite is transmitted in the system group network schematic diagram that Abis interface is used between BTS among the BSS and BSC in the prior art.

Fig. 2 is the schematic diagram that possesses the sts satellite transmission system of demand assignment function.

Fig. 3 is the system group network schematic diagram that base station controller is positioned at satellite transmits control unit side.

Fig. 4 is the system group network schematic diagram that base station controller is positioned at the satellite transmits cell side.

Fig. 5 is an interface data system for transmitting networking schematic diagram one to one between BTS and the BSC.

Fig. 6 is an interface data multi-to-multi system for transmitting networking schematic diagram between BTS and the BSC.

Fig. 7 is the method flow diagram according to realization satellite transmits of the present invention.

Embodiment

In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is further described below in conjunction with the drawings and specific embodiments.

Satellite communication comprises that the fixed allocation multiple access inserts (Permanently-Assigned Multiple Access, PAMA) and demand assignment multiple access insert (Demand Assigned Multiple Access, DAMA) dual mode, wherein PAMA is used for the constant transmissions of satellite link, fixed allocation is used for the satellite link of professional transmission, no matter not business data transmission is arranged on the satellite link, and satellite link exists always.And DAMA is the satellite link that inborn ability is used in professional transmission when link request is arranged, and treats that the transfer of data on the satellite link finishes, and then discharges satellite link.A plurality of websites adopt under the situation of satellite transmits in network, only give the respective site allocation of transmission bandwidth when link request is arranged, allocation of transmission bandwidth not then during no link request.Like this, can reach the purpose that reduces total transmission bandwidth.

System of the present invention is that the sts satellite transmission system that will possess demand assignment function is applied to mobile communication system, and in mobile communication system, increase user data equipment and the interface unit that the satellite-transmission gear of the sts satellite transmission system with demand assignment function is connected, make the satellite transmits of mobile data support the demand assigned function.

Be example still below with the Abis interface of BSS in the gsm system, system to realization distribution according to need satellite transmits function of the present invention is described, but the present invention not only is confined to the Abis interface of gsm system, multiple interfaces for other mobile communication system, for example Abis interface in the A interface in the gsm system, the Iub interface in the WCDMA system and Iu interface, the CDMA2000 system and A interface etc. also can adopt similar scheme to be achieved.

The system of realization distribution according to need satellite transmits of the present invention comprises BSS and sts satellite transmission system.As previously mentioned, BSS comprises a BSC and a plurality of BTS by BSC control, and BSC and BTS are user data equipment, and sts satellite transmission system comprises a plurality of satellite-transmission gears, and BSC is connected corresponding satellite-transmission gear separately with BTS.

When the interface data form between user data equipment and the satellite-transmission gear does not match, needing increases DAMA interface unit (to call interface unit in the following text) at BSC and BTS side respectively, that is to say that BTS and the BSC interface unit by separately respectively are connected with satellite-transmission gear.The conversion of the interface data form between BTS and the satellite-transmission gear is finished in BTS side interface unit; BSC side interface unit is finished the interface data format conversion between BSC and the satellite-transmission gear on the one hand, finishes demand assigned application of satellite transmits resource and release function simultaneously.When between user data equipment and the satellite-transmission gear during interface data format match, the BTS side need not to increase interface unit, but the BSC side still needs to increase interface unit, at this moment, demand assigned application of satellite transmits resource and release function are only finished in BSC side interface unit, and need not to finish the interface data format conversion between BSC and the satellite-transmission gear.

System of the present invention also comprises the sts satellite transmission system with demand assignment function, Fig. 2 is the networking schematic diagram with sts satellite transmission system of demand assignment function, as can be seen from Figure 2, the sts satellite transmission system with demand assignment function comprises satellite transmits unit and satellite transmits control unit.The satellite transmits unit comprises interconnected modulator-demodulator and transceiver, and modulator-demodulator is mainly used in the modulation and demodulation work of finishing user data, and transceiver is used to finish the work that transmits and receives of frequency conversion, power amplification and radiofrequency signal.The satellite transmits control unit has the function of distribution according to need satellite transmits resource, because it is except comprising transceiver and modulator-demodulator, also comprise the control module and the webmaster module that are connected with modulator-demodulator respectively, control module and webmaster module also are connected to each other.Control module comprises the resource request of destination address information and discharges request by distribution according to need resource request and the release acquisition request that comes from BSC on the one hand, destination address information comprises the address of the BTS relevant with resource request, be used to finish the allocation process in satellite transmits distribution according to need resource data pond (DAMA pond) on the other hand, request and discharge the satellite transmits link of certain bandwidth is asked generally speaking and what discharge is a pair of two-way data satellite link; And the webmaster module is used for information such as the configuration of each satellite transmits unit of unified management sts satellite transmission system and Operation and Maintenance.So the satellite transmits unit is used to finish the transmission of user data; The satellite transmits control unit is mainly used in to be finished the control of satellite transmits resource and function that the network of sts satellite transmission system is managed, and finishes the transmission of user data in needs.

When system specifically implements, under the prerequisite that does not depart from thought of the present invention, can be according to the different needs of different occasions, the networking structure of system is carried out certain improvement.Introduce the system of above-mentioned realization distribution according to need satellite transmits below in conjunction with the specific embodiment of Fig. 3 and Fig. 4.

Specific embodiment 1:

Fig. 3 is the system group network schematic diagram that BSC is positioned at satellite transmits control unit side, as can be seen from Figure 3, this system comprises BSS and sts satellite transmission system, and BSS comprises a BSC and two BTS, and system also comprises BSC side interface unit 313 and BTS side interface unit 323.Sts satellite transmission system comprises a satellite transmits control unit 300 that is connected with BSC and two satellite transmits unit 320 that are connected with BTS.Satellite transmits control unit 300 comprises control module 303, webmaster module 304, transceiver 301 and modulation module 302, transceiver 301 is connected with modulation module 302,302 of modulation modules are connected with webmaster module 304 with control module 303 respectively, and control module 303 and webmaster module 304 also are connected to each other.Satellite transmits unit 320 comprises interconnective modulatedemodulate mode transfer inferior 322 and transceiver 321.BSC is connected with the modulation module 302 of satellite transmits control unit 300 by BSC side interface unit 313, and BTS is connected with the modulation module 322 of satellite transmits unit 320 by BTS side interface unit 323.

Service request signaling that the base transceiver station receiving mobile is sent or service ending signaling, be sent to interface unit 323, this service request signaling or service ending signaling are carried out after the Data Format Transform in interface unit 323, be sent to modulation module 322 and modulate, be emitted to satellite by transceiver 321.

Transceiver 301 receives service request signaling or the service ending signaling that transceiver 321 is sent via satellite, be sent to and carry out rectification in the modulation module 302, be sent to interface unit 313, be sent to base station controller then, base station controller indication interface unit 313 generates the resource request of professional transmission or discharges request, by interface unit 313 resource request or the request that discharges is sent to control module 303.

Control module 303 is according to professional transmission resource request that receives or release request distribution or discharge professional transfer resource, and the result with this Resources allocation or release resource is sent to interface unit 313 then, is sent to base station controller by interface unit 313.

Base station controller is sent to interface unit 313 with the signaling that issues and carries out Data Format Transform, after modulating by modulation module 302 then, is sent to satellite by transceiver 301.

Transceiver 321 receives the signaling that transceiver 301 is sent via satellite, is undertaken being sent to interface unit 323 and carrying out Data Format Transform after the rectification by modulation module 322, is sent to base transceiver station by interface unit 323 then.

Interface unit 323 receives and comes from the business datum of base transceiver station and these data are carried out Data Format Transform, this business datum is sent to transceiver 321 after modulating in modulation module 322, by transceiver 321 this business datum is sent to satellite.

Transceiver 301 receives the business datum that comes from transceiver 321 via satellite, and this business datum rectification in modulation module 302 is sent to interface unit 313 later on, carries out being sent to base station controller after the Data Format Transform at interface unit 313.

Interface unit 313 receives and comes from the business datum of base station controller and these data are carried out Data Format Transform, this business datum is sent to transceiver 301 after modulating in modulation module 302, by transceiver 301 this business datum is sent to satellite.

Transceiver 321 receives the business datum that transceiver 301 is sent via satellite, this business datum rectification in modulation module 322 is sent to interface unit 323 later on, carry out being sent to base transceiver station after the Data Format Transform at interface unit 323, be sent to travelling carriage by base transceiver station.

Need to prove that Fig. 3 only is the system group network schematic diagram, only show two BTS of a BSC control among the figure, a BSC controls usually and reaches hundreds of BTS in the practical application, and each BTS connects interface unit and satellite transmits unit separately respectively.

This networking structure is more common structure, BSC and BSC side interface unit are placed on satellite transmits control unit one side, BTS and BTS side interface unit are placed on satellite transmits unit one side, the star-network of composition standard, BSC, BSC side interface unit and satellite transmits control unit are positioned at the logic centre of network, and a plurality of BTS, BTS side interface unit and satellite transmits unit are around the cellular logic center arrangement.The network configuration of this system is simply clear, and, for some satellite-transmission gear, its control signaling relevant with distribution according to need can partly be transmitted by terrestrial links, in this case, BSC and BSC side interface arrangements of cells in satellite transmits control unit one side, can be realized signal transmission between the control module of BSC and satellite transmits control unit by terrestrial links, avoid the time delay that produces owing to satellite transmits with the control signaling of distributing according to need relevant.

Specific embodiment 2:

Fig. 4 is the system group network schematic diagram that BSC is positioned at the satellite transmits unit, and as can be seen from Figure 4, this system comprises BSS and sts satellite transmission system, and BSS comprises a BSC and two BTS, and system also comprises BSC side interface unit 313 and BTS side interface unit 323.Sts satellite transmission system comprises a satellite transmits control unit 400, a satellite transmits unit 410 that is connected with BSC and two satellite transmits unit 420 that are connected with BTS.Satellite transmits control unit 400 comprises transceiver 401, modulation module 402, control module 403 and webmaster module 404, transceiver 401 is connected with modulation module 402, modulation module 402 is connected with webmaster module 404 with control module 403 respectively, and control module 403 and webmaster module 404 also are connected to each other.BSC flank guard's star transmission unit 410 comprises interconnective modulation module 412 and transceiver 411, and BSC is connected with the modulation module 412 of BSC flank guard's star transmission unit 410 by interface unit 313.BTS flank guard's star transmission unit 420 comprises interconnective modulation module 422 and transceiver 421, and BTS is connected with modulation module 422 in the satellite transmits unit separately by corresponding interface unit 323.

Service request signaling that the base transceiver station receiving mobile is sent or service ending signaling, be sent to interface unit 323, this service request signaling or service ending signaling are carried out after the Data Format Transform in interface unit 323, be sent to modulation module 422 and modulate, be emitted to satellite by transceiver 421.

Transceiver 411 receives service request signaling or the service ending signaling that transceiver 421 is sent via satellite, be sent to and carry out rectification in the modulation module 412, be sent to interface unit 313, be sent to base station controller then, base station controller indication interface unit 313 generates the resource request of professional transmission or discharges request, by interface unit 313 resource request or the request that discharges are sent to modulation module 412 and modulate, be emitted to satellite by transceiver 411.

Transceiver 401 receives professional transmission resource request or the release request that transceiver 411 is sent via satellite, carry out rectification by modulation module 402, be sent to control module 403, control module 403 is according to professional transmission resource request that receives or release request distribution or discharge professional transfer resource, then this Resources allocation or the result that discharges resource are sent to modulation module 402 and modulate, be emitted to satellite by transceiver 401.

Transceiver 411 receives the distribution that transceiver 401 sends via satellite or discharges the result of resource, is undertaken carrying out Data Format Transform by interface unit 313 after the rectification by modulation module 412, is sent to base station controller.

Base station controller is sent to interface unit 313 with the signaling that issues and carries out Data Format Transform, after modulating by modulation module 412 then, is sent to satellite by transceiver 411.Transceiver 421 receives the signaling that transceiver 411 is sent via satellite, is undertaken being sent to interface unit 323 and carrying out Data Format Transform after the rectification by modulation module 422, is sent to base transceiver station by interface unit 323 then.

Interface unit 323 receives and comes from the business datum of base transceiver station and these data are carried out Data Format Transform, this business datum is sent to transceiver 421 after modulating in modulation module 422, by transceiver 421 this business datum is sent to satellite.

Transceiver 411 receives the business datum that comes from transceiver 421 via satellite, and this business datum rectification in modulation module 412 is sent to interface unit 313 later on, carries out being sent to base station controller after the Data Format Transform at interface unit 313.

Interface unit 313 receives and comes from the business datum of base station controller and these data are carried out Data Format Transform, this business datum is sent to transceiver 411 after modulating in modulation module 412, by transceiver 411 this business datum is sent to satellite.

Transceiver 421 receives the business datum that transceiver 411 is sent via satellite, this business datum rectification in modulation module 422 is sent to interface unit 323 later on, carry out being sent to base transceiver station after the Data Format Transform at interface unit 323, be sent to travelling carriage by base transceiver station.

Need to prove that Fig. 4 only is the schematic diagram of system group network, only show two BTS of a BSC control among the figure, a BSC controls usually and reaches hundreds of BTS in the practical application, and each BTS connects interface unit and satellite transmits unit separately respectively.

This networking structure is mainly used in the less area of satellite transmits control unit distribution, because the expense of satellite transmits control module and webmaster module is higher, in order to reduce investment cost of equipment, can be by the shared satellite transmits control unit of a province even a plurality of province.In this case, BSC is arranged in satellite transmits unit one side, and the satellite transmits control unit does not connect BSC, forms the star-network of layering.The satellite transmits control unit is the logic centre (ground floor) of star-network, BSC, BSC side interface unit and BSC flank guard's star transmission unit are to arrange around logic centre, it is the second layer of network, a plurality of BTS, BTS side interface unit and BTS flank guard's star transmission unit are to arrange around BSC, BSC side interface unit and BSC flank guard's star transmission unit, are the 3rd layers of network.Transmission via satellite realizes connecting between BSC and the satellite transmits control module, and like this, because there is time delay in satellite transmits, also there is certain time delay in the reciprocal process of the control signaling relevant with distribution according to need.

In system of the present invention, the data of transmitting between BSC among the BSS and the BTS have two kinds: constant transmissions data and distribution according to need transmission data.The constant transmissions data are Operation and Maintenance and signaling channel data, also claim signaling transmission data; Distribution according to need transmission data are traffic channel datas, also claim professional transmission data, and professional transmission data can be the speech datas of user's communication, also may be other data such as video, note.Transmit data though adopt the distribution according to need satellite transmits between BSC and the BTS, but signaling control in order to ensure BSS operate as normal and simplification distribution according to need satellite transmits, be the certain satellite transmits bandwidth of each BTS fixed allocation in advance, be used for the transmission of base station operation maintenance and signaling channel data, promptly be used for the signaling transmission.Operation and Maintenance and signaling channel only take considerably less satellite transmits resource, and most satellite transmits resources leave in the DAMA pond, are used for the distribution according to need of traffic channel transmission resource, promptly are used for professional transmission.

Owing to have signaling transmission data and these two kinds transmission of professional transmission data data, so during the transmission equipment transmission via satellite of the data between BTS and the BSC, two kinds of transmission meanss can be arranged: transmission and multi-to-multi transmit one to one.

Fig. 5 is an interface data system for transmitting networking schematic diagram one to one between BTS and the BSC, comprise a BSC in the supposing the system, three BTS of a BSC control, as can be seen from Figure 5, three modulator-demodulators of configuration in the satellite transmits unit that is connected with BSC, finish the transfer of data between BSC and three BTS respectively, the data between BSC and the BTS comprise signaling transmission data and the professional transmission of demand assigned data.

Need to prove that shown in Figure 5 is the sample situation that system comprises three BTS, in actual applications, the BTS of a BSC control is often far more than three.So, identical with the quantity of the modulator-demodulator that disposes in the satellite transmits unit that BSC connects with the quantity of BTS, the BTS of one or several modulator-demodulator correspondence that disposes in the satellite transmits unit.Adopt the networking of this system for transmitting one to one to have simple in structure, BSC and BTS interface matching relationship is changed little advantage.

Fig. 6 is an interface data multi-to-multi system for transmitting networking schematic diagram between BTS and the BSC, still comprise a BSC in the supposing the system, three BTS of a BSC control, as can be seen from Figure 6, two modulator-demodulators of configuration in the satellite transmits unit that is connected with BSC, one of them modulator-demodulator is used to finish the signaling transmission of BSC and all BTS, and another modulator-demodulator is used to finish the business transmission of BSC and all BTS.Adopt the networking of this multi-to-multi system for transmitting can reduce the quantity of satellite transmits modulator-demodulator.

Need to prove that shown in Figure 6 is the sample situation that system comprises three BTS, in actual applications, the BTS of a BSC control is often far more than three.So, the modulator-demodulator that disposes in the satellite transmits unit that is connected with BSC is also more than two, and several often modulator-demodulators are the signaling modulator-demodulator, finishes the signaling transmission of BSC and all BTS jointly; Several in addition modulator-demodulators are professional modulator-demodulator, finish the business transmission of BSC and all BTS jointly, owing to exist statistics advantage, the sum of two parts modulator-demodulator to be less than the above-mentioned quantity of the modulator-demodulator of configuration one to one.The BSC and the BTS interface matching relationship that adopt this multi-to-multi system for transmitting networking mode to relate to are changed bigger.

Fig. 5 and Fig. 6 are to be example with the starlike networking mode of the layering of embodiment 2, need to prove, for the starlike networking mode of the standard of embodiment 1, the data transfer mode of its BSC and BTS both can adopt transmission means one to one as shown in Figure 5, promptly in the satellite transmits control unit of BSC side, dispose the modulator-demodulator identical with BTS quantity, also can adopt multi-to-multi transmission means as shown in Figure 6, promptly configuration is less than the modulator-demodulator of BTS quantity in the modulator-demodulator of the satellite transmits control unit of BSC side.

Decide according to concrete system requirements in implementation process, when the BTS negligible amounts of BSC control, suitable employing is transmission manner one to one, when the BTS quantity of BSC control more for a long time, be fit to adopt the mode of multi-to-multi.At first, this mode can reduce the quantity of the modulator-demodulator that is disposed, and, when implementing the demand assigned satellite transmits, also preferably adopt the mode of multi-to-multi, because this mode is separated signaling data and business datum, and the distribution according to need satellite transmits also is that signaling data and business datum are separated, with pre-assigned fixing satellite resource command transmitting data, with shared demand assigned satellite resource service data transmission, so the mode of multi-to-multi more meets the thought of the satellite transmits of distributing according to need.

Except a kind of system of the satellite transmits that realizes distributing according to need is provided, the present invention also provides a kind of method of the satellite transmits that realizes distributing according to need.This method is when mobile communication system has service request, sends the professional resource request of transmitting to sts satellite transmission system, and sts satellite transmission system is used in the transfer resource of professional transmission for the mobile communication system branch; When the professional end of transmission of mobile communication system, send resource release request to sts satellite transmission system, sts satellite transmission system discharges the transfer resource that has distributed.

At this, still the satellite transmits with Abis interface between BSC in the base station sub-system and the BTS is an example, introduces the implementing procedure of this method.

Fig. 7 is that this method comprises the steps: according to the flow chart of the method for realization distribution according to need satellite transmits of the present invention

Step 701: the satellite transmits resource that is used for fixing transmission of the pre-certain bandwidth of first to file, be used for the transmission of base station signaling data, and apply for certain bandwidth be used to distribute according to need the transmission satellite transmits resource (DAMA pond), the DAMA pond is used for the transmission of demand assigned business datum.

Step 702: from the satellite transmits resource that is used for fixing transmission, be the certain bandwidth of each BTS fixed allocation in advance, set up the satellite link of signaling data transmission between BSC and each BTS.

Step 703: when BSC receives the service request signaling, judge that this service request signaling is interior business demand signalling of sending by pre-assigned fixed channel or the external business demand signalling of being sent by MSC, if interior business demand signalling, represent that then the calling party is the BTS of this BSC control, forwards step 704 to; Otherwise the expression callee is the BTS of this BSC control, forwards step 709 to.

Step 704:BSC judges called subscriber's travelling carriage travelling carriage that BTS controlled whether this BSC controls, if then forward step 705 to; Otherwise forward step 707 to.

The resource request of business transmission that step 705:BSC will comprise the BTS address information of the BTS address of control calling subscriber travelling carriage and control called subscriber travelling carriage is sent to the control module of satellite-transmission gear.

Step 706: the control module of satellite-transmission gear distributes certain bandwidth to give the BTS of control caller travelling carriage and the BTS of control called mobile station from the DAMA pond, with the bi-directional data satellite link between the BTS that sets up BSC and control caller travelling carriage, and set up BSC and control called mobile station BTS between the bi-directional data satellite link, be used for service data transmission.

The resource request of business transmission that step 707:BSC will comprise the BTS address information of control calling subscriber travelling carriage is sent to the control module of satellite-transmission gear.

Step 708: the control module of satellite-transmission gear distributes certain bandwidth to give the BTS of control caller travelling carriage from the DAMA pond, with the bi-directional data satellite link between the BTS that sets up BSC and control caller travelling carriage, be used for service data transmission, forward step 711 then to.

Step 709: the professional transmission resource request that will comprise the BTS address information of controlling the called subscriber by BSC is sent to the control module of satellite-transmission gear.

Step 710: the control module of satellite-transmission gear distributes certain bandwidth to give the BTS of control called mobile station from the DAMA pond, to set up the bi-directional data satellite link between BSC and the called mobile station, is used for service data transmission.

Step 711: judge that whether BSC receives the professional end of transmission signaling that comes from BTS or MSC, if not, forwards step 712 to; If forward step 713 to.

If BSC receives the professional end of transmission signaling that comes from BTS, expression is by the initiatively on-hook of user of mobile station of BTS control; If BSC receives the professional end of transmission signaling that comes from MSC, expression initiatively on-hook side is not the user of mobile station of the BTS control of this BSC control.

Whether step 712:BSC detects the bi-directional data satellite link of every transport service information just occupied, if not, then forwards step 713 to; If forward step 711 to.

Step 713:BSC sends the resource release request of professional transmission to the control module of satellite-transmission gear.

Step 714: the control module of satellite-transmission gear is discharged into the satellite transmits resource that the satellite link between BSC and the corresponding BTS takies in the DAMA pond.

In concrete implementation process, can carry out suitable improvement, to adapt to the concrete needs of concrete condition to the method according to this invention.Therefore be appreciated that according to the specific embodiment of the present invention just to play an exemplary role, not in order to restriction protection scope of the present invention.

Claims

1, a kind of system that realizes satellite transmits is characterized in that, this system comprises mobile communication system and sts satellite transmission system,

2, the system of realization satellite transmits according to claim 1 is characterized in that, described mobile communication system comprises base station sub-system.

3, the system of realization satellite transmits according to claim 2 is characterized in that, described base station sub-system comprises:

Base transceiver station is used to receive service request signaling, service ending signaling or business datum from travelling carriage, and is sent to second interface unit (323), or, receive signaling or business datum, and be sent to travelling carriage from second interface unit (323);

Second interface unit (323), be used for to be the form that sts satellite transmission system is supported from the Data Format Transform of service request signaling, service ending signaling or the business datum of base transceiver station, and transmission system is sent to first interface unit (313) via satellite, or, to be the form that base station sub-system is supported from the signaling of satellite transmission system or the Data Format Transform of business datum, and be sent to base transceiver station;

First interface unit (313), be used for to be the form that base station sub-system is supported from the service request signaling of satellite transmission system or the Data Format Transform of service ending signaling, and be sent to base station controller, and ask to sts satellite transmission system according to resource request or release that the indication of base station controller generates and sends professional transmission, or, the result that will distribute from the transfer resource of satellite transmission system or discharge or the Data Format Transform of business datum are the form that base station sub-system is supported, and be sent to base station controller, or, reception is from the business datum of sts satellite transmission system, with the Data Format Transform of this business datum is the form that base station sub-system is supported, and be sent to base station controller, or, reception is from the signaling or the business datum of base station controller, with the Data Format Transform of this signaling or business datum is the form that sts satellite transmission system is supported, and is sent to sts satellite transmission system;

Base station controller, be used for according to service request signaling or the service ending signaling received, send resource request that generates professional transmission or the indication that discharges request to first interface unit (313), or, reception is from the transfer resource distribution of first interface unit (313) or the result who discharges, and distribute or the result that discharges monitors transfer resource according to this transfer resource, or, reception is from the business datum of first interface unit (313), and this business datum is sent to mobile switching centre, or, receive signaling data or business datum, and be sent to first interface unit (313) from mobile switching centre.

4, the system of realization satellite transmits according to claim 2 is characterized in that, described sts satellite transmission system comprises:

The first satellite transmits unit (320), be used to receive service request signaling, service ending signaling or business datum from the base transceiver station of base station sub-system, and be sent to the first satellite transmits control unit (300), or, reception is from the signaling or the business datum of the first satellite transmits control unit (300), and is sent to the base transceiver station of base station sub-system;

The first satellite transmits control unit (300), be used for receiving service request signaling, service ending signaling or business datum from the first satellite transmits unit (320), and be sent to the base station controller of base station sub-system, or, reception is from the transmission resource request or the release request of base station controller, according to transmission resource request or release request distribution or release transfer resource, and transfer resource distributed or the result that discharges is sent to base station controller, or, reception is from the signaling or the business datum of base station controller, and is sent to the first satellite transmits unit (320).

5, the system of realization satellite transmits according to claim 2, it is characterized in that, described sts satellite transmission system comprises: the 3rd satellite transmits unit (420), be used to receive service request signaling, service ending signaling or business datum from the base transceiver station of base station sub-system, and be sent to the first satellite transmits unit (410), or, receive signaling or business datum, and be sent to the base station controller of base station sub-system from the first satellite transmits unit (410);

The first satellite transmits unit (410), be used for receiving service request signaling from the 3rd satellite transmits unit (420), service ending signaling or business datum, and be sent to base station controller, or, reception is from the signaling or the business datum of base station controller, and be sent to the 3rd satellite transmits unit (420), or, reception is from the transmission resource request or the release request of base station controller, and be sent to the second satellite transmits control unit (400), or, receive from the transfer resource distribution of the second satellite transmits control unit (400) or the result who discharges, and be sent to base station controller;

The second satellite transmits control unit (400), be used for receiving transmission resource request or release request from the first satellite transmits unit (410), ask to distribute or discharge transfer resource according to transmission resource request or release, and the result of transfer resource distribution or release is sent to the first satellite transmits unit (410).

6, the system of realization satellite transmits according to claim 4 is characterized in that, the described first satellite transmits control unit (300) comprising:

Transceiver (301), be used for receiving via satellite service request signaling, service ending signaling or business datum from the first satellite transmits unit (320), and be sent to the first modulation module (302), or, reception comes from the signaling or the business datum of the first modulation module (302), and is sent to the first satellite transmits unit (320) via satellite;

The first modulation module (302), be used for receiving service request signaling, service ending signaling or business datum from first transceiver (301), this signaling or business datum are carried out the base station controller that rectification is sent to base station sub-system afterwards, or, reception is from the signaling or the business datum of base station controller, is sent to first transceiver (301) after this signaling or business datum are modulated;

First control module (303), be used to receive transmission resource request or release request from base station controller, ask to distribute or discharge transfer resource according to this transmission resource request or release, and the result of this transfer resource distribution or release is sent to base station controller.

7, the system of realization satellite transmits according to claim 4 is characterized in that, the described first satellite transmits unit (320) comprising:

Second transceiver (321), be used for receiving service request signaling, service ending signaling or business datum from the second modulation module (322), and be sent to satellite transmits control system (300) via satellite, or, receive signaling or business datum via satellite, and be sent to the second modulation module (322) from satellite transmits control system (300);

The second modulation module (322), be used to receive service request signaling, service ending signaling or business datum from base transceiver station, be sent to second transceiver (321) after this signaling or data are modulated, or, reception is carried out this signaling or data to be sent to base transceiver station after the rectification from the signaling or the business datum of second transceiver (321).

8, the system of realization satellite transmits according to claim 5, it is characterized in that, the described second satellite transmits control unit (400) comprising: the 3rd transceiver (401), be used for receiving via satellite transmission resource request or release request from the second satellite transmits unit (410), and be sent to the 3rd modulation module (402), or, the result that reception distributes or discharges from the transfer resource of the 3rd modulation module (402), and be sent to the second satellite transmits unit (410) via satellite;

The 3rd modulation module (402), be used for receiving transmission resource request or release request from the 3rd transceiver (401), this request is carried out being sent to second control module (403) after the rectification, or, the result that reception distributes or discharges from the transfer resource of second control module (403) is sent to the 3rd transceiver (401) after this result modulated;

Second control module (403), be used for receiving transmission resource request or release request from the 3rd modulation module (402), ask to distribute or discharge transfer resource according to this transmission resource request or release, and the result of this transfer resource distribution or release is sent to the 3rd modulation module (402).

9, the system of realization satellite transmits according to claim 5 is characterized in that, the described second satellite transmits unit (410) comprising:

The 4th transceiver (411), be used for receiving via satellite service request signaling from the 3rd satellite transmits unit (420), service ending signaling or business datum, and be sent to the 4th modulation module (412), or, reception is from the signaling or the business datum of the 4th modulation module (412), and be sent to the 3rd satellite transmits unit (420) via satellite, or, reception is from the transmission resource request or the release request of the 4th modulation module (412), and be sent to the second satellite transmits control unit (400) via satellite, or, receive via satellite from the transfer resource distribution of the second satellite transmits control unit (400) or the result who discharges, and be sent to the 4th modulation module (412);

The 4th modulation module (412), be used for receiving service request signaling from the 4th transceiver (411), service ending signaling or business datum, this signaling or business datum are carried out being sent to base station controller after the rectification, or, reception is from the signaling or the business datum of base station controller, this signaling or data are modulated, and be sent to the 4th transceiver (411), or, reception is from the transmission resource request or the release request of base station controller, this request is sent to the 4th transceiver (411) after modulating, or, reception is carried out this result to be sent to base station controller after the rectification from the transfer resource distribution of the 4th transceiver (411) or the result who discharges.

10, the system of realization satellite transmits according to claim 5 is characterized in that, described the 3rd satellite transmits unit (420) comprising:

The 5th transceiver (421), be used for receiving via satellite signaling or business datum from the second satellite transmits unit (410), and this signaling or business datum be sent to the 5th modulation module (422), or, reception is from service request signaling, service ending signaling or the business datum of the 5th modulation module (422), and is sent to the second satellite transmits unit (410) via satellite;

The 5th modulation module (422), be used for receiving signaling or business datum from the 5th transceiver (421), this signaling or business datum are carried out being sent to base transceiver station after the rectification, or, reception is from service request signaling, service ending signaling or the business datum of base transceiver station, is sent to the 5th transceiver (421) after this signaling or data are modulated.

11, the system of realization satellite transmits according to claim 6, it is characterized in that, the described first modulation module (302) comprises a modulator-demodulator at least, is used for signaling data and the business datum transmitted between the base station controller of base station sub-system and the base transceiver station carry out modulation and demodulation systems.

12, the system of realization satellite transmits according to claim 11, it is characterized in that, the quantity of modulator-demodulator equals the quantity of base transceiver station in the described first modulation module (302), wherein, modulator-demodulator carry out modulation and demodulation system to signaling data and the business datum transmitted between the base station controller in the base station sub-system and the base transceiver station.

13, the system of realization satellite transmits according to claim 6 is characterized in that, the described first modulation module (302) comprising:

14, the system of realization satellite transmits according to claim 13 is characterized in that, described signaling modulation module comprises a modulator-demodulator at least, and described professional modulation module comprises at least one modulator-demodulator.

15, the system of realization satellite transmits according to claim 9, it is characterized in that, described the 4th modulation module (412) comprises a modulator-demodulator at least, is used for signaling data and the business datum transmitted between the base station controller of base station sub-system and the base transceiver station carry out modulation and demodulation systems.

16, the system of realization satellite transmits according to claim 15, it is characterized in that, the quantity of modulator-demodulator equals the quantity of base transceiver station in described the 4th modulation module (412), wherein, modulator-demodulator carry out modulation and demodulation system to signaling data and the business datum transmitted between the base station controller in the base station sub-system and the base transceiver station.

17, the system of realization satellite transmits according to claim 9 is characterized in that, described the 4th modulation module (412) comprising:

18, the system of realization satellite transmits according to claim 17 is characterized in that, described signaling modulation module comprises a modulator-demodulator at least, and described professional modulation module comprises at least one modulator-demodulator.

19, the system of realization satellite transmits according to claim 6 is characterized in that, the described first satellite transmits control unit (300) further comprises:

The first webmaster module (304); it is in the running state information of normal or malfunction to be used to receive the expression of sending via first transceiver (301) and the first modulation module (302) the first satellite transmits unit (320); according to this running state information generating run maintenance command, and this operational maintenance command is sent to the first satellite transmits unit (320) via the first modulation module (302) and first transceiver (301).

20, the system of realization satellite transmits according to claim 8 is characterized in that, the described second satellite transmits control unit (400) further comprises:

The second webmaster module (404); it is in the running state information of normal or malfunction to be used to receive the expression of sending via the 3rd transceiver (401) and the 3rd modulation module (402) in the second satellite transmits unit (410) and the 3rd satellite transmits unit (420); according to this running state information generating run maintenance command, and this operational maintenance command is sent to the second satellite transmits unit (410) and the 3rd satellite transmits unit (420) via the 3rd modulation module (402) and the 3rd transceiver (401).

21, a kind of method that realizes satellite transmits is characterized in that, comprises the steps: at least

22, the method for realization satellite transmits according to claim 21 is characterized in that, described mobile communication system comprises base station sub-system.

23, the method for realization satellite transmits according to claim 22 is characterized in that, the described distribution satellite transmits of steps A resource is to be assignment signalling transmission link between the base station controller in the base station sub-system and each base transceiver station.

24, the method for realization satellite transmits according to claim 22, it is characterized in that, when the described service request of step B is the Mobile Originated service request of being controlled by the base station controller in the described base station sub-system, and, when the called mobile station of service request correspondence is the travelling carriage of described base station controller control

25, the method for realization satellite transmits according to claim 22, it is characterized in that, when the described service request of step B is the Mobile Originated service request of being controlled by the base station controller in the described base station sub-system, and, when the called mobile station of service request correspondence is not the travelling carriage of described base station controller control

26, the method for realization satellite transmits according to claim 22 is characterized in that, when the described service request of step B be base station controller in the described base station sub-system receive come from the service request of mobile switching centre the time,

The described destination address information of described step B comprises the address of the base transceiver station in the base station sub-system of controlling called mobile station,

27, the method for realization satellite transmits according to claim 22 is characterized in that, the described release satellite transmits of step B resource is to discharge base station controller in the base station sub-system of having distributed and the service transmission link between the base transceiver station.

28, the method for realization satellite transmits according to claim 22, it is characterized in that, step B further comprises: whether the service transmission link that the base station controller detection in the base station sub-system has distributed is just occupied, if then do not carry out the step that described transmission transfer resource discharges request and discharges transfer resource; Otherwise carry out the step that described transmission transfer resource discharges request and discharges transfer resource.