CN102427381A - Satellite base station system - Google Patents
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- CN102427381A CN102427381A CN2011102083289A CN201110208328A CN102427381A CN 102427381 A CN102427381 A CN 102427381A CN 2011102083289 A CN2011102083289 A CN 2011102083289A CN 201110208328 A CN201110208328 A CN 201110208328A CN 102427381 A CN102427381 A CN 102427381A
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Abstract
The invention discloses a satellite base station system which comprises a radio frequency unit and a digital hardware unit, wherein in the radio frequency unit and the digital hardware unit, machine frames in different types are adopted; the radio frequency unit adopts a radio frequency machine cabinet of a non advanced telecommunication computer architecture (ATCA) platform; and the digital hardware unit is inserted into an ATCA machine cabinet in a form of an ATCA single board. By the satellite base station system based on ATCA, a satellite mobile communication ground station system has the advantages of high capacity, high reliability, high expansion property, higher single board processing capability, higher board interconnection bandwidth, stable and reliable power supply and radiation, uniform and reliable system management, and the like.
Description
Technical field
The present invention relates to the satellite mobile communication earth station system, particularly a kind of satellite base station system based on ATCA (AdvancedTelecommunication Computer Architecture, advanced telecom computer architecture framework) hardware platform.
Background technology
Utilize geostationary orbit satellite or in, low-orbit satellite is as relay station, realizes that the mobile communication of zone and even global range is called satellite mobile communication.Satellite mobile communication system be global user provide large span, on a large scale, at a distance the roaming and motor-driven, flexible movement communication service; Be the expansion and the extension of land cellular mobile communications system, in remote area, mountain area, island, receive disaster area, ocean-going vessel to only reach communication aspects such as oceangoing voyage aircraft to have more unique advantages.Satellite mobile communication has become an important development direction of communication service.
Satellite mobile communication system (as shown in Figure 1) is made up of space segment 1, application section 2 and ground segment 3 three parts.Space segment 1, i.e. communication satellite, the transponder that utilizes on the satellite to be carried are realized the forwarding of signal between user and user, user and ground satellite station, promptly realize the user link and the forwarding of presenting signal in the link.Use section 2, promptly user terminal 5, and identifiable information (voice, data, short message etc.) is processed into the wireless signal that can transmit in the space, compliance with system requires, and to satellites transmits; The spacing wireless signal that the compliance with system of simultaneously, satellites transmits (forwarding) being come requires receives and is processed into identifiable information (voice, data, short message).Ground segment 3 is realized the wireless receiving and dispatching telecommunication function, comprises radio frequency processing, channel decoding and multiplexing and demultiplexing, band spectrum modulation and despread-and-demodulation etc.; Functions such as management, systems network administration and the monitoring of tools of realization Radio Resource and ground resource, satellite mobile subscriber's authentication, encryption, authentication, charging; And the exchange and the transmission of the processing of user data, user data, and the connection communication of realization and external network.
Wherein a most important part is the satellite mobile communication earth station system in the ground segment 3; The satellite mobile communication earth station system framework of standard as shown in fig. 1 is made up of with 8 three network elements of gateway GPRS support node GGSN (Gateway GPRS Support Node) the SBSS of satellite base station system (SatelliteBase Station System) 6, GPRS serving GPRS support node SGSN (Serving GPRS Support Node) 7.
The function that the SBSS of satellite base station system 6 realizes comprises satellite mobile subscriber's RRM, mobile management and wireless receiving and dispatching telecommunication function, comprises radio frequency processing, channel decoding and multiplexing and demultiplexing, band spectrum modulation and despread-and-demodulation etc.
GPRS serving GPRS support node SGSN 7 closes usually with gateway GPRS support node GGSN 8 and is called GPRS support node GGSN (GPRS Support Node) 9.The GPRS serving GPRS support node SGSN 7 main functions such as routing forwarding, mobile management, session management, Logical Link Management, authentication and encryption, tickets generation and output of accomplishing satellite mobile subscriber packet data package; Gateway GPRS support node GGSN 8 mainly has been the gateway effect, connects with multiple different ground communication network 10 (comprise but be not limited to integrated services digital network ISDN (Integrated Services Digital Network), the PSPDN of PSPDN Packet Switched Public Data Network (Packet Switched Public Data Network) and local area network (LAN) LAN networks such as (Local Area Network)); Carry out satellite mobile subscriber's packet data package protocol conversion and be sent to the network of far-end, realize connection communication.
The satellite mobile user data transmits between the network equipment of user terminal 5 and SBSS of satellite base station system 6 and GPRS support node GGSN 9 through Traffic Channel.If the intercommunication of the ICBM SHF satellite terminal 5 in the satellite mobile communication system, user data is transmitted by the SBSS of satellite base station system 6; If ICBM SHF satellite terminal 5 is and the outer user of net when communicating by letter that user data experiences single-hop satellite link, the SBSS of satellite base station system 6, GPRS support node GGSN 9 network equipments and external network and connects.
Along with the development of satellite mobile communication technology and improving constantly of application demand, hardware platform architectural framework and software architecture are handled aspects such as density, veneer area, power consumption, handling capacity, reliability, extensibility, system management, system processing power and have all been proposed increasingly high requirement at veneer.Though hardware platform architectural framework that existing satellite mobile communication earth station system adopts and software architecture have carried out some expansion effort, but still be difficult to satisfy the demand pressure that strengthens day by day.In addition, as the universal extensible platform system with multiple excellent properties-ATCA hardware platform system that quilt in industries such as telecommunications is extensively supported, current satellite mobile communication earth station system does not all also adopt.
Summary of the invention
The present invention is directed to deficiency and problem that current satellite mobile communication earth station system recited above exists, the present invention adopts and realizes the satellite mobile communication earth station system based on the advanced telecom computer architecture architecture platform.
One aspect of the present invention provides a kind of satellite base station system, and said satellite base station system comprises radio frequency unit and digital hardware cell mesh, and radio frequency unit and digital hardware unit adopt dissimilar machine frames respectively; Said radio frequency unit adopts the radio frequency rack of non-ATCA platform, and said digital hardware unit assigns into the ATCA rack with the form of ATCA veneer.
According to embodiments of the invention, said satellite base station system is used for the satellite mobile communication earth station system, and said satellite mobile communication earth station system adopts high ATCA platform system structure; This system comprises at least one SBSS of satellite base station system and a GPRS support node GSN; Form local network through wired connection between said satellite base station SBSS of system and the GPRS support node GSN; The said satellite base station SBSS of system is connected through feeding link with communication satellite; The said satellite base station SBSS of system is responsible for handling the access of satellite user terminal in the local network; Said GPRS support node GSN is responsible for handling communicating by letter between communication and local network and the external network in the local satellite mobile communication network.
According to embodiments of the invention, said digital hardware cell mesh comprises at least one rack of machine frame composition based on the ATCA platform, and can increase at least one expansion rack again.
According to embodiments of the invention, said digital hardware cell mesh comprises at least one ethernet switching module GES, has the form of the ATCA veneer that inserts machine frame, in the realization equipment between veneer no management ethernet exchange.
According to embodiments of the invention; Said digital hardware cell mesh comprises one or more baseband processing module BB; Form with the ATCA veneer that inserts machine frame is accomplished the function of Channel Processing: realize rate adapted, chnnel coding and interweave, encrypt at down direction; Realize digital demodulation at up direction, decipher, deinterleave, channel-decoding and rate adaptation function.
According to embodiments of the invention; Said digital hardware cell mesh comprises one or more radio frequency interface module RFI, has the form of the ATCA veneer that inserts machine frame, the signal of coming in the received RF unit; Convert inner baseband signal stream format to, be sent to baseband processing module BB through switching network; The conversion baseband digital signal also is sent to corresponding radio frequency unit.
According to embodiments of the invention; Said digital hardware cell mesh comprises one or more interface and clock module IFB/CLK; Have the form of the ATCA veneer that inserts machine frame, provide and the IP connecting interface of GPRS serving GPRS support node SGSN and gateway GPRS support node GGSN and the extraction and the distribution of clock signal.
According to embodiments of the invention; Said digital hardware cell mesh comprises one or more chain of command main control module CCM; Form with the ATCA veneer that inserts machine frame, realize load balancing, management of public resources and with the internal communication function of other applied function module.
According to embodiments of the invention, said digital hardware cell mesh comprises one or more chain of command user terminal functional module MSM, has the form of the ATCA veneer that inserts machine frame, realizes the function that user terminal is relevant with carrying control; Said digital hardware cell mesh comprises one or more chain of command wave beam sub-district functional module SBM, has the form of the ATCA veneer that inserts machine frame, realizes the function relevant with the wave beam sub-district; Said digital hardware cell mesh comprises one or more user plane common process module URMM, has the form of the ATCA veneer that inserts machine frame, realizes the resource management function of user plane.
According to embodiments of the invention, said digital hardware cell mesh comprises one or more user plane user terminal processes module UMSM, has the form of the ATCA veneer that inserts machine frame, realizes the user plane protocol processing capacity relevant with user terminal; Said digital hardware cell mesh comprises one or more user plane wave beam sub-district processing module USBM, has the form of the ATCA veneer that inserts machine frame, realizes the user plane protocol processing capacity relevant with the wave beam sub-district.
Another aspect of the present invention provides a kind of satellite mobile communication earth station system, and said satellite mobile communication earth station system adopts high ATCA platform system structure; This system comprises at least one SBSS of satellite base station system and a GPRS support node GSN; Form local network through wired connection between said satellite base station SBSS of system and the GPRS support node GSN; The said satellite base station SBSS of system is connected through feeding link with communication satellite; The said satellite base station SBSS of system is responsible for handling the access of satellite user terminal in the local network; Said GPRS support node GSN is responsible for handling communicating by letter between communication and local network and the external network in the local satellite mobile communication network.
According to embodiments of the invention, the said satellite base station SBSS of system comprises radio frequency unit and digital hardware unit, and said radio frequency unit separates with the digital hardware unit, and connects through the wire transmission circuit.
According to embodiments of the invention, said digital hardware unit has the form of the ATCA veneer that inserts machine frame, on the ATCA platform, realizes functions such as control exchange, external interface, Base-Band Processing, Signalling exchange, user data processing.
According to embodiments of the invention; Said radio frequency unit adopts the independent radio frequency rack of non-ATCA platform, the power amplification of modulation among the completion satellite base station SBSS of system between transmission reception, baseband signal and the carrier signal of the control and treatment of wireless channel, wireless channel data and last down-conversion, wireless carrier and transmission receiving function.
According to embodiments of the invention; Said GPRS support node GSN comprises the digital hardware unit; This digital hardware unit has the form of the ATCA veneer that inserts machine frame, on the ATCA platform, realizes functions such as control exchange, load balancing, calling party data management, accounting management, tracking, Lawful intercept management, external interface, Signalling exchange, user data processing.
According to embodiments of the invention, all network elements of said satellite mobile communication earth station system have identical software architecture.
According to embodiments of the invention, said software architecture comprises operating system OS, middleware MW, chain of command processing CPP, user plane processing UPP and Operation and Maintenance OMP; Said operating system OS is a real time operating system, as the operating system of whole system.
According to embodiments of the invention, said middleware MW is based on the software public module on the operating system OS, for upper layer software (applications) provides general basic function; State chain of command and handle CPP realization chain of command signaling process correlation function; User plane processing UPP realizes user face data processing correlation function; Operation and Maintenance OMP (Operating and Maintenance Processing): correlation function is safeguarded in the realization foregrounding.
According to embodiments of the invention, said operating system OS and middleware MW constitute the software common platform, for the upper application software module provides general basic function; It then is the application software module on the software common platform that said chain of command is handled CPP, user plane processing UPP and Operation and Maintenance processing OMP, through calling the unified interface completion certain applications processing that the software common platform provides.
The present invention is based on the architectural framework of ATCA, make the satellite mobile communication earth station system can obtain the benefit of interconnect bandwidth between big capacity, high reliability, favorable expansibility, bigger veneer disposal ability, higher plate, reliable and stable aspects such as power supply, heat radiation and unified reliable system management.
Another aspect of the present invention provides a kind of satellite mobile communication earth station system, and said satellite mobile communication earth station system adopts high ATCA platform system structure; This system comprises the SBSS of satellite base station system, GPRS serving GPRS support node SGSN and three network element subsystems of gateway GPRS support node GGSN and constitutes; The said satellite base station SBSS of system is divided into radio frequency unit module and digital hardware unit module two parts again; Said radio frequency unit adopts the independent radio frequency rack of non-ATCA platform, and the digital hardware unit of the SBSS of satellite base station system, GPRS serving GPRS support node SGSN and gateway GPRS support node GGSN are placed on separately independently in the ATCA rack.
According to embodiments of the invention, said GPRS serving GPRS support node SGSN comprises one or more rack of machine frame composition based on the ATCA platform, and can increase one or more expansion rack again.
According to embodiments of the invention, said GPRS serving GPRS support node SGSN comprises at least one ethernet switching module GES, has the form of the ATCA veneer that inserts machine frame, in the realization equipment between veneer no management ethernet exchange.
According to embodiments of the invention; Said GPRS serving GPRS support node SGSN comprises one or more interface and clock module IFB/CLK; Have the form of the ATCA veneer that inserts machine frame, provide and the IP connecting interface of equipment such as SBSS of satellite base station system and gateway GPRS support node GGSN and the extraction and the distribution of clock signal.
According to embodiments of the invention, said GPRS serving GPRS support node SGSN comprises one or more chain of command processing module GCPM, has the form of the ATCA veneer that inserts machine frame, realizes Central Control Function.
According to embodiments of the invention, said GPRS serving GPRS support node SGSN comprises one or more user plane processing module GUPM, has the form of the ATCA veneer that inserts machine frame, realizes the processing capacity of user plane protocol.
According to embodiments of the invention, said GPRS serving GPRS support node SGSN comprises that gateway GPRS support node GGSN comprises: one or more machine frame based on the ATCA platform is formed a rack, and can increase one or more expansion rack again.
According to embodiments of the invention, said GPRS serving GPRS support node SGSN comprises at least one ethernet switching module GES, has the form of the ATCA veneer that inserts machine frame, in the realization equipment between veneer no management ethernet exchange.
According to embodiments of the invention; Said GPRS serving GPRS support node SGSN comprises one or more interface and clock module IFB/CLK; Form with the ATCA veneer that inserts machine frame, provide with the SBSS of satellite base station system, GPRS serving GPRS support node SGSN and with the IP connecting interface of outside network device and the extraction and the distribution of clock signal.
According to embodiments of the invention, said GPRS serving GPRS support node SGSN comprises one or more user plane main control module GMCM, has the form of the ATCA veneer that inserts machine frame, realizes the user plane Central Control Function; Said GPRS serving GPRS support node SGSN comprises one or more user plane processing module GUPM, has the form of the ATCA veneer that inserts machine frame, realizes the processing capacity of user plane protocol.
Satellite base station of the present invention system is based on the architectural framework of ATCA, makes the satellite mobile communication earth station system can obtain the benefit of interconnect bandwidth between big capacity, high reliability, favorable expansibility, bigger veneer disposal ability, higher plate, reliable and stable aspects such as power supply, heat radiation and unified reliable system management.
Another aspect of the present invention provides a kind of satellite mobile communication earth station system, and said satellite mobile communication earth station system adopts high ATCA platform system structure; This system comprises the SBSS of satellite base station system, GPRS serving GPRS support node SGSN and three network element subsystems of gateway GPRS support node GGSN and constitutes; Said GPRS serving GPRS support node SGSN and gateway GPRS support node GGSN are combined into GPRS support node GSN; Form local network through wired connection between said satellite base station SBSS of system and the GPRS support node GSN; The said satellite base station SBSS of system is connected through feeding link with communication satellite; The said satellite base station SBSS of system is responsible for handling the access of satellite user terminal in the local network; Said GPRS support node GSN is responsible for handling communicating by letter between communication and local network and the external network in the local satellite mobile communication network;
The said satellite base station SBSS of system is divided into radio frequency unit module and digital hardware unit module two parts again; Said radio frequency unit adopts the independent radio frequency rack of non-ATCA platform, and the digital hardware unit of the SBSS of satellite base station system, GPRS serving GPRS support node SGSN and gateway GPRS support node GGSN are placed on separately independently in the ATCA rack.
According to embodiments of the invention, said GPRS serving GPRS support node SGSN comprises at least one ethernet switching module GES, has the form of the ATCA veneer that inserts machine frame, in the realization equipment between veneer no management ethernet exchange; Said ethernet switching module GES adopts master-slave redundancy scheme or load sharing mode.
According to embodiments of the invention; Said GPRS serving GPRS support node SGSN comprises one or more interface and clock module IFB/CLK; Have the form of the ATCA veneer that inserts machine frame, provide and the IP connecting interface of equipment such as SBSS of satellite base station system and gateway GPRS support node GGSN and the extraction and the distribution of clock signal; Said interface and clock module IFB/CLK can adopt 1+1 master backup scheme, and each is to there being active and standby usefulness between IFB/CLK.
According to embodiments of the invention; Said digital hardware cell mesh comprises one or more baseband processing module BB; Form with the ATCA veneer that inserts machine frame is accomplished the function of Channel Processing: realize rate adapted, chnnel coding and interweave, encrypt at down direction; Realize digital demodulation at up direction, decipher, deinterleave, channel-decoding and rate adaptation function; Said baseband processing module BB adopts N+1, N+M or N:M backup scenario.
According to embodiments of the invention; Said digital hardware cell mesh comprises one or more radio frequency interface module RFI, has the form of the ATCA veneer that inserts machine frame, the signal of coming in the received RF unit; Convert inner baseband signal stream format to, be sent to baseband processing module BB through switching network; The conversion baseband digital signal also is sent to corresponding radio frequency unit; Said radio frequency interface module RFI is with 1+1, N+1, N+M, N:M backup or cold standby scheme.
According to embodiments of the invention; Said digital hardware cell mesh comprises one or more chain of command main control module CCM; Form with the ATCA veneer that inserts machine frame, realize load balancing, management of public resources and with the internal communication function of other applied function module;
Said GPRS serving GPRS support node SGSN comprises one or more chain of command processing module GCPM, has the form of the ATCA veneer that inserts machine frame, realizes Central Control Function;
Said GPRS serving GPRS support node SGSN comprises one or more user plane main control module GMCM, has the form of the ATCA veneer that inserts machine frame, realizes the user plane Central Control Function;
Said chain of command main control module CCM, chain of command processing module GCPM and user plane main control module GMCM adopt 1+1 master backup scheme.
According to embodiments of the invention, said digital hardware cell mesh comprises one or more user plane common process module URMM, has the form of the ATCA veneer that inserts machine frame, realizes the resource management function of user plane;
Said digital hardware cell mesh comprises one or more user plane user terminal processes module UMSM, has the form of the ATCA veneer that inserts machine frame, realizes the user plane protocol processing capacity relevant with user terminal;
Said GPRS serving GPRS support node SGSN comprises one or more user plane processing module GUPM, has the form of the ATCA veneer that inserts machine frame, realizes the processing capacity of user plane protocol;
Said digital hardware cell mesh comprises one or more user plane wave beam sub-district processing module USBM, has the form of the ATCA veneer that inserts machine frame, realizes the user plane protocol processing capacity relevant with the wave beam sub-district;
Said user plane common process module URMM, user plane user terminal processes module UMSM, user plane wave beam sub-district processing module USBM and user plane processing module GUPM adopt N+1, N+M or N:M backup scenario.
Owing to adopt the switching network interconnection, rack also can back up with the expansion rack room each other, and particularly when GES place rack lost efficacy, the GES module of other rack can be taken over the worker of inefficacy rack through certain mechanism.
Description of drawings
The present invention will explain through example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 shows satellite mobile communication network and satellite mobile communication earth station system sketch map;
Fig. 2 shows ATCA machine frame bottom management sketch map;
Fig. 3 shows ATCA backboard and module interconnects sketch map;
Fig. 4 is the SBSS+SGSN+GGSN configuration schematic diagram of embodiment one;
Fig. 5 is the SBSS of a satellite base station system user plane application software module sketch map;
Fig. 6 is the SBSS+GSN configuration schematic diagram of embodiment two;
Fig. 7 is the earth station system All-In-One configuration schematic diagram of embodiment three;
Fig. 8 is the software architecture sketch map.
Embodiment
Disclosed all characteristics in this specification, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this specification (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
ATCA is PICMG (PCI Industrial Computer Manufacturer ' s Group; International Industry computer manufacturing person federation) the advanced telecom computer architecture framework of start formulating of a new generation, be a high performance-price ratio providing for converged communication of future generation and data network application, based on modular construction, compatible, and extendible hardware structure.
ATCA machine frame bottom management sketch map as shown in Figure 2; Core specification PICMG3.0 in the ATCA standard family has defined mechanical structure, power supply, heat radiation, interconnected, the system management part of ATCA architecture, and some other auxiliary standard has then defined transmission means interconnected in core specification.
Aspect board dimension, the ATCA specification is header board 8U (height) x280mm (deeply), back plate 8Ux70mm.The groove column pitch is 1.2 ", 19 " machine frame can be supported 14 grooves, and the machine frame of 600mm ETSI can be supported 16 grooves.Board dimension and 0.8 with respect to CPCI 6Ux160mm " the groove column pitch, the circuit number that the ATCA veneer can hold, the components and parts height of support, the aspects such as power consumption that veneer can hold have all improved greatly, the panel of broad has also been strengthened the support to connector.
Aspect power supply, every ATCA veneer receives two independent-48VDC power supply and directly supplies power, and power supply reliability and power supply capacity have all improved.Power supply on every veneer is divided into management power supply and electric two parts.The management output power is less; Aim at intelligent platform management controller IPMC (Intelligent Platform Management Controller) 13 power supplies that are used for platform management on the plate; Under the control of this controller, power module can or cut off electric to other electric on the plate.
The machine frame of ATCA management (Shelf Management) 12 is based on the serial management bus of Intelligent Platform Management Bus IPMB (Intelligent Platform Management Bus) 14; IPMC on each veneer all have two each other the independently IPMB bus (be called IPMB-A, another is called IMPB-B) of active and standby usefulness link to each other with Shelf Management Controller (ShMC) 12.It can be bus-type that veneer is connected with management between Shelf Management Controller spare, also can be star-like.The physical layer of IPMB is exactly very succinct I2C (Inter-Integrated Circuit) serial signal line, and the redundancy of System Management Bus has strengthened the reliability of management channels more.
Aspect the veneer interconnection (referring to ATCA backboard shown in Figure 3 and module interconnects sketch map); ATCA has defined clock synchronization bus 15, Update passage (UpdateChannel) 16, Base interface (Base Interface) 17, Fabric interface (FabricInterface) 18 successively according to backboard order from top to bottom, and the bottom is power supply and management channels 19.
Fabric interface 18 is used for the high speed data transfer between veneer, and Fabric interface 18 is based on the signal up to 3.125Gbps SERDES, can in star-like and Full mesh interconnected, support the transmission rate of 10Gb.Fabric interface 18 can be supported multiple transmission specification, and when adopting star topology, the central authorities of star also are redundant switching boards.Plate position among Fig. 3 arrange with line be schematically, in fact the Fabric network can be supported double star, multiple topology such as totally interconnected, and the arrangement of groove position comprises that the groove position arrangement of power board position also is flexibly.
Between the plate of ATCA platform and the transfer of data between veneer and power board all adopt the high-speed-differential link technology of point-to-point, improved the reliability of interconnection and improved the handling capacity of hardware platform greatly.
At present, ATCA hardware platform architectural framework has obtained the support of many main flow software and hardwares manufacturer, becomes the communication apparatus platform architecture standard of industry extensive uses such as telecommunications.Employing ATCA architectural framework also can bring and reduce cost, shorten the construction cycle, obtains many benefits such as support easily.Simultaneously; We can see that the network equipment of equipment and the land mobile communication system etc. of the satellite mobile communication earth station system with big capacity, highly reliable demand has great similitude, goes for the satellite mobile communication earth station system too so be applicable to the ATCA platform of land mobile communication system.
The satellite mobile communication earth station system that the present invention proposes based on ATCA hardware platform architectural framework; All network element subsystems are followed identical architectural framework, and the satellite mobile communication standard that is therefore adopted (comprise but be not limited to and insert CDMA (Code Division Multiple Access), frequency division multiple access access FDMA (FrequencyDivision Multiple Access) etc. like time division multiple access access TDMA (Time Division Multiple Access), code division multiple access) is irrelevant.
The architectural framework that the present invention proposes is not limited to be applied to the system architecture based on the GMR-13G standard that the ETSI of ETSI proposes, and the hardware and software platform architectural framework that the satellite mobile communication earth station system of other standard and standard can adopt the present invention to propose is realized.Simultaneously, the embodiment shown in below the execution mode of satellite mobile communication earth station system includes but not limited to.
One embodiment of the present of invention as shown in Figure 4; The satellite mobile communication earth station system is made up of the SBSS of satellite base station system, GPRS serving GPRS support node SGSN and three network element subsystems of gateway GPRS support node GGSN, and wherein GPRS serving GPRS support node SGSN and gateway GPRS support node GGSN close usually and be called GPRS support node GSN.
Form local network through wired connection (comprise but be not limited to like Ethernet etc.) between SBSS of satellite base station system and the GPRS support node GSN.The SBSS of satellite base station system is connected through feeding link with communication satellite.The SBSS of satellite base station system is responsible for handling the access of satellite user terminal in the local network; GPRS support node GSN is responsible for handling communicating by letter between communication and local network and the external network in the local satellite mobile communication network.
In the SBSS of satellite base station system, digital hardware unit 21 separates with radio frequency unit 20, and connects through wire transmission circuit (comprise but be not limited to like optical fiber etc.).Digital hardware unit 21 has the form of the ATCA veneer that inserts machine frame, on the ATCA platform, realizes functions such as control exchange, external interface, Base-Band Processing, Signalling exchange, user data processing; Radio frequency unit 20 adopts the independent radio frequency rack of non-ATCA platform, functions such as the power amplification of modulation among the completion satellite base station SBSS of system between transmission reception, baseband signal and the carrier signal of the control and treatment of wireless channel, wireless channel data and last down-conversion, wireless carrier and transmission reception.
The SBSS of satellite base station system comprises radio frequency unit and digital hardware unit.Wherein radio frequency unit is made up of RF front-end module FEB (Front End Board), transceiver module TRB (TRansceiver Board) and power amplifier PA (Power Amplifier), is placed in the independent radio frequency machine frame of non-ATCA platform.According to the difference of application scenarios,, can be designed to the RF unit equipment of different specification size like indoor/outdoor, watt level etc.
The digital hardware unit is made up of baseband processing module BB (BaseBand), radio frequency interface module RFI (RadioFrequency Interface), interface and clock module IFB/CLK (InterFace Board&&CLocK), ethernet switching module GES (Giga Ethernet Switching), SBSS chain of command main control module CCM (Central Control Module), SBSS chain of command user terminal functional module MSM (Mobileearth Station Module), SBSS chain of command wave beam sub-district functional module SBM (Spot Beam Module), SBSS user plane common process module URMM (U-plane Resource ManagementModule), SBSS user plane user terminal processes module UMSM (U-plane Mobile earth StationModule) and SBSS user plane wave beam sub-district processing module USBM (U-plane Spot Beam Module), assigns in the ATCA rack with the form of ATCA veneer.Except ethernet switching module GES took fixing groove position 7 and 8, the quantity of other module can be according to system configuration and capacity requirement flexible configuration.
Baseband processing module BB: the function of accomplishing Channel Processing.Realize rate adapted, chnnel coding and interweave, encrypt at down direction; Realize digital demodulation at up direction, decipher, deinterleave, channel-decoding and rate adaptation function.
Radio frequency interface module RFI: the signal of coming in the received RF unit, convert inner baseband signal stream format to, be sent to baseband processing module BB through switching network; The conversion baseband digital signal also is sent to corresponding radio frequency unit.
Interface and clock module IFB/CLK: provide and the connecting interface of GPRS support node GSN and the extraction and the distribution of clock signal.
Ethernet power board GES: in the realization equipment between the veneer the exchange of no management ethernet.
SBSS chain of command main control module CCM; The chain of command application software CCM that moves on it realizes load-balancing function: (1) comprises the calling that processing is relevant with overall flow process; And call out the related procedure of initiating, different satellite user terminals is called out balanced being assigned on the different user terminal functional module MSM; (2) handle paging, the flow process and the function of all centralized control or management of public resources such as start, restart; (3) with the internal communication function of other applied function module.
SBSS chain of command user terminal functional module MSM, the chain of command application software MSM that moves on it realizes following function: the whole call flow relevant with carrying control with satellite user terminal; Handle the relevant signaling process of satellite user DCCH; Realize RRM RRM (Radio Resource Management) algorithm; The RRM relevant with satellite user terminal; The user plane resource that foundation/call release is relevant; Internal communication function with other applied function module.
SBSS chain of command wave beam sub-district functional module SBM: the chain of command application software SBM that moves on it realizes the function relevant with the wave beam sub-district, comprising: the load balancing of Radio Resource; Handle the relevant signaling process of wave beam sub-district CCCH; Part RRM RRM algorithm; The RRM relevant with the wave beam sub-district.
SBSS user plane common process module URMM (as shown in Figure 5); Context that URMM leading subscriber face is all and resource; The message of coming from chain of command ends in this; The user plane application software URMM that moves on it realizes the user plane resource management, comprises message distribution function piece MDM (Message Distribute Module) 30, paging distribution function piece PDM (Paging Distribute Module) 31, satellite user terminal resource management module MSRM 32 (it comprises satellite user terminal resource management 33 and satellite user terminal context management 34), wave beam local resource administration module SBRM (Spot Beam Resource Management) 35 (it comprises management 36 of wave beam local resource and wave beam sub-district context management 37).
Message distribution function piece MDM (Message Distribute Module) 30, this module is one of main control part of user plane processing, is used for interacting message with the chain of command application module.MDM receives the initial resource application of the satellite user terminal of chain of command application module, and is distributed to different MSRM (Mobile earthStation Resource Management).
Paging distribution function piece PDM (Paging Distribute Module) 31, this module is one of main control part of user plane processing, is used for the interacting message used with chain of command.MDM receives the paging request of chain of command application module, resolves and selects the wave beam sub-district that paging request need arrive and be distributed to different SBRM (Spot Beam Resource Management).
Satellite user terminal resource management module MSRM 32, MSRM is made up of a satellite user terminal resource management entity and a plurality of satellite user terminal context management entity.See that from module distribution MSRM can expand and be distributed on a plurality of veneers.
Satellite user terminal resource management module MSRM 32 comprises satellite user terminal resource management 33 and satellite user terminal context management 34.Satellite user terminal resource management 33.Each UMSM module has a satellite user terminal resource management entity, the user plane resource situation of this entity record UMSM module.User plane resource behaviour in service periodically is published to satellite user terminal resource management entity all in the system by the UMSM module.This entity is received behind the resource request message of satellite user terminal context management entity, selects the UMSM module of allowable resource.Satellite user terminal context management 34, the RRC message that satellite user terminal context management entity handles chain of command satellite user terminal is relevant, the relevant information of this entity management and maintenance customer's face context and proprietary satellite user terminal.After receiving the initial resource request message of MDM; The satellite user terminal context management is to satellite user terminal resource management entity request resource; Coordinate the resource allocation of other user plane correspondent entities, and relevant resource allocation, change and the deletion of this satellite user terminal of processing subsequent.
Wave beam local resource administration module SBRM (Spot Beam Resource Management) 35, SBRM is made up of a wave beam local resource management entity and a wave beam sub-district context management entity.See that from module distribution SBRM can expand and be distributed on a plurality of veneer modules.If the traffic carrying capacity of this resume module and data load are little, a SBRM just can satisfy the requirement that the whole system user plane is used; When the amount of managing business increased, SBRM also can expand and be distributed on a plurality of veneer modules.
Wave beam local resource administration module SBRM (Spot Beam Resource Management) 35 comprises management 36 of wave beam local resource and wave beam sub-district context management 37.Wave beam local resource management 36, user plane resource behaviour in service by USBM module periodic report to wave beam local resource management entity, the user plane resource situation of this entity record USBM module.After wave beam local resource management entity is received the resource request message of sending from wave beam sub-district context management entity, select the USBM module of allowable resource.Wave beam sub-district context management 37, the RRC message that context management entity handles chain of command wave beam sub-district, wave beam sub-district is relevant.The user plane contextual information of particular beam sub-district is distributed in this entity management and maintenance.The context management entity scheduling of wave beam sub-district is assigned to the user plane resource of common signal channel.If satellite user terminal has used the common signal channel of this wave beam sub-district, wave beam sub-district context management entity will carry out interacting message with the satellite user terminal context management entity of this satellite user terminal of management.
SBSS user plane user terminal processes module UMSM (as shown in Figure 5).The UMSM module is the destination node of the relevant Radio interface protocols stack of satellite user terminal, is responsible for the inter-module communication with URMM, and chain of command is used the preliminary treatment of the assignment messages of coming.The user plane application software UMSM that moves on it realizes the user plane protocol processing relevant with user terminal.
SBSS user plane wave beam sub-district processing module USBM (as shown in Figure 5).The USBM module is the destination node of the relevant Radio interface protocols stack in wave beam sub-district, is responsible for the inter-module communication with URMM, and chain of command is used the preliminary treatment of the assignment messages of coming.The user plane application software USBM that moves on it realizes the user plane protocol processing relevant with the wave beam sub-district.
GPRS support node GSN has only the digital hardware unit; This digital hardware unit has the form of the ATCA veneer that inserts machine frame, on the ATCA platform, realizes functions such as control exchange, load balancing, calling party data management, accounting management, tracking, Lawful intercept management, external interface, Signalling exchange, user data processing.
The module of GPRS serving GPRS support node SGSN comprises interface and clock module IFB/CLK, ethernet switching module GES, chain of command processing module GCPM (GSN C-plane Process Module) and user plane processing module GUPM (GSN U-plane Process Module), assigns in the ATCA machine frame with the form of ATCA veneer.Identical with the SBSS of satellite base station system, except ethernet switching module GES took fixing groove position 7 and 8, the quantity of other module can be according to system configuration and capacity requirement flexible configuration.
Chain of command processing module GCPM is mainly used in completion: (1) Central Control Function: realize load balancing, calling party data management, accounting management, tracking, Lawful intercept management and with the internal communication function of other applied function module.(2) be responsible for processing with the reciprocity chain of command agreement of the SBSS of satellite base station system and other network element of core-network side, like mobile management and transaction management protocol processes.
User plane processing module GUPM:GUPM mainly is responsible for the processing of SGSN user plane protocol.
The module of gateway GPRS support node GGSN comprises interface and clock module IFB/CLK, ethernet switching module GES, user plane main control module GMCM (GGSN Main Control Module) and user plane processing module GUPM, is placed in the ATCA machine frame.Identical with the SBSS of satellite base station system, except Ethernet power board GES took fixing groove position 7 and 8, the quantity of other module can be according to system configuration and capacity requirement flexible configuration.
User plane main control module GMCM is used to accomplish Central Control Function: realize user plane resource management, load balanced and with the internal communication function of other applied function module.
User plane processing module GUPM:GUPM mainly is responsible for the processing of GGSN user plane protocol.
Another kind of satellite mobile communication earth station system (SBSS+GSN) as shown in Figure 6, this scheme is merged into a network element entity GPRS support node GSN with GPRS serving GPRS support node SGSN and gateway GPRS support node GGSN.
System is made up of the SBSS of satellite base station system and two network element subsystems of GPRS support node GSN.Wherein, the SBSS of satellite base station system is divided into radio frequency unit module and digital hardware unit module two parts again.Radio frequency unit adopts the independent radio frequency rack of non-ATCA platform, and each module of the digital hardware cell mesh of the SBSS of satellite base station system and GPRS support node GSN assigns in the ATCA rack separately with the form of ATCA veneer.According to the difference of satellite mobile communication earth station system capacity, each network element subsystem can be formed a rack by one or more machine frame based on the ATCA platform, and can increase one or more expansion rack again.
Between SBSS of satellite base station system and the GPRS support node GSN through wired connection (comprise but be not limited to) like Ethernet etc.Among the SBSS of satellite base station system, radio frequency unit module and digital hardware unit module were connected through wired (comprise but be not limited to like optical fiber etc.).
Wherein the SBSS of satellite base station system is the same with the above-mentioned SBSS of satellite base station system.Wherein the module of GPRS support node GSN comprises interface and clock module IFB/CLK, ethernet switching module GES, GSN chain of command processing module GCPM and GSN user plane processing module GUPM, assigns in the ATCA machine frame with the form of ATCA veneer.Identical with the SBSS of satellite base station system, except ethernet switching module GES took fixing groove position 7 and 8, the quantity of other module can be according to system configuration and capacity requirement flexible configuration.
GSN chain of command processing module GCPM is used for accomplishing: (1) Central Control Function: realize load balancing, calling party data management, accounting management, tracking/Lawful intercept management and with the internal communication function of other applied function module; (2) be responsible for processing with the reciprocity chain of command agreement of the SBSS of satellite base station system and other network element of core-network side, like mobile management and the processing of things management agreement.
GSN user plane processing module GUPM:GUPM mainly is responsible for the processing of GSN user plane protocol.
Fig. 7 shows the satellite mobile communication earth station system All-In-One configuration schematic diagram based on the ATCA platform, is another embodiment of the present invention.This scheme is merged into a network element entity with the SBSS of satellite base station system, GPRS serving GPRS support node SGSN and gateway GPRS support node GGSN.
Because the versatility of ATCA machine frame, veneer, interface; When satellite mobile communication earth station system capacity less; Disposal ability is less demanding; Only need a small amount of necessary module can satisfy under the situation of desired disposal ability, power system capacity and function, can assign in the ATCA rack the module of foregoing all network elements of satellite mobile communication earth station system is integrated, realize the All-In-One (All in one) of system's Network Element Function.
Whole system is divided into radio frequency unit module and digital hardware unit module two parts.Radio frequency unit adopts the independent radio frequency rack of non-ATCA platform, and the digital hardware unit module assigns in the ATCA rack with the form of ATCA veneer.According to the difference of satellite mobile communication earth station system capacity, the satellite mobile communication ground station of this All-In-One can form a rack by one or more machine frame based on the ATCA platform, and can increase one or more expansion rack again.In the system of All-In-One, radio frequency unit module and digital hardware unit module were connected through wired (comprise but be not limited to like optical fiber etc.).
In addition, as further improvement of the present invention, the system redundancy that embodiment can adopt.Ethernet switching module GES adopts master-slave redundancy scheme or load sharing mode, preferred active and standby scheme.
Interface and clock module IFB/CLK can adopt 1+1 master backup scheme, and promptly each is active and standby with relation to having between IFB/CLK.Radio frequency interface module RFI can adopt 1+1 backup or cold standby scheme, when the transmission net to radio frequency unit uses suitable cross bonding equipment, can support kinds of schemes such as N+1, N+M, N:M.Baseband processing module BB can adopt multiple backup scenario, like N+1, N+M, N:M etc.Chain of command main control module CCM, chain of command processing module GCPM and user plane main control module GMCM can adopt 1+1 master backup scheme, and promptly each is active and standby with relation to having between CCM, GCPM, GMCM.Chain of command user function module MSM, chain of command wave beam sub-district functional module SBM can adopt multiple backup scenario, like N+1, N+M, N:M etc.User plane common process module URMM, user plane user terminal processes module UMSM, user plane wave beam sub-district processing module USBM and user plane processing module GUPM can adopt multiple backup scenario, like N+1, N+M, N:M etc.
Owing to adopt the switching network interconnection, rack also can back up with the expansion rack room each other, and particularly when GES place rack lost efficacy, the GES module of other rack can be taken over the work of inefficacy rack through certain mechanism.
In satellite mobile communication earth station system of the present invention, all network elements have identical software architecture.The software architecture sketch map is as shown in Figure 8.This software architecture is by forming with the lower part:
Operating system OS (Operating System) 22: based on the real time operating system RTOS (Real Time Operating System) on the different hardware platforms (comprise but be not limited to hardware platform) like ATCA; Middleware MW (MiddleWare) 23: based on the software public module on the operating system OS, for upper layer software (applications) provides general basic function; Chain of command is handled CPP (Control Plane Processing) 24: realize chain of command signaling process correlation function; User plane processing UPP (User Plane Processing) 25: realize user face data processing correlation function; Operation and Maintenance OMP (Operating and MaintenanceProcessing) 26: correlation function is safeguarded in the realization foregrounding.
Wherein, operating system OS and middleware MW constitute software common platform 27, for the upper application software module provides general basic function; It then is the application software module 28 on the software common platform that chain of command is handled CPP 24, user plane processing UPP 25 and Operation and Maintenance processing OMP 26, through calling the unified interface completion certain applications processing that the software common platform provides.
According to the disposal ability of digital hardware veneer and the capacity requirement of satellite mobile communication earth station system, application software module can merge or separation operates in on one or more digital hardware veneer.Simultaneously, the software common platform also can be done appropriate functional cutting or combination according to the difference of application software module on the veneer, realizes simplifying and optimizing of software on the different veneers.
The software architecture that this patent proposes is applied to all network element subsystems of satellite mobile communication earth station system; The characteristics of this versatility are the same with ATCA hardware platform architectural framework, make the acquisition of satellite mobile communication earth station system reduce the workload of software development, maintenance, upgrading, shorten the construction cycle, many benefits easily obtain to support and reduce cost etc.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (10)
1. a satellite base station system is characterized in that, said satellite base station system comprises radio frequency unit and digital hardware cell mesh, and radio frequency unit and digital hardware unit adopt dissimilar machine frames respectively; Said radio frequency unit adopts the radio frequency rack of non-ATCA platform, and said digital hardware unit assigns into the ATCA rack with the form of ATCA veneer.
2. satellite base station as claimed in claim 1 system is characterized in that, said satellite base station system is used for the satellite mobile communication earth station system, and said satellite mobile communication earth station system adopts high ATCA platform system structure; This system comprises at least one SBSS of satellite base station system and a GPRS support node GSN; Form local network through wired connection between said satellite base station SBSS of system and the GPRS support node GSN; The said satellite base station SBSS of system is connected through feeding link with communication satellite; The said satellite base station SBSS of system is responsible for handling the access of satellite user terminal in the local network; Said GPRS support node GSN is responsible for handling communicating by letter between communication and local network and the external network in the local satellite mobile communication network.
3. satellite base station as claimed in claim 2 system is characterized in that, said digital hardware cell mesh comprises that at least one forms a rack based on the machine frame of ATCA platform, and can increase at least one expansion rack again.
4. like the described satellite base station of one of claim 1 to 3 system; It is characterized in that; Said digital hardware cell mesh comprises at least one ethernet switching module GES, has the form of the ATCA veneer that inserts machine frame, in the realization equipment between veneer no management ethernet exchange.
5. like the described satellite base station of one of claim 1 to 3 system; It is characterized in that; Said digital hardware cell mesh comprises one or more baseband processing module BB; Form with the ATCA veneer that inserts machine frame is accomplished the function of Channel Processing: realize rate adapted, chnnel coding and interweave, encrypt at down direction; Realize digital demodulation at up direction, decipher, deinterleave, channel-decoding and rate adaptation function.
6. like the described satellite base station of one of claim 1 to 3 system; It is characterized in that; Said digital hardware cell mesh comprises one or more radio frequency interface module RFI, has the form of the ATCA veneer that inserts machine frame, the signal of coming in the received RF unit; Convert inner baseband signal stream format to, be sent to baseband processing module BB through switching network; The conversion baseband digital signal also is sent to corresponding radio frequency unit.
7. like the described satellite base station of one of claim 1 to 3 system; It is characterized in that; Said digital hardware cell mesh comprises one or more interface and clock module IFB/CLK; Have the form of the ATCA veneer that inserts machine frame, provide and the IP connecting interface of GPRS serving GPRS support node SGSN and gateway GPRS support node GGSN and the extraction and the distribution of clock signal.
8. like the described satellite base station of one of claim 1 to 3 system; It is characterized in that; Said digital hardware cell mesh comprises one or more chain of command main control module CCM; Form with the ATCA veneer that inserts machine frame, realize load balancing, management of public resources and with the internal communication function of other applied function module.
9. like the described satellite base station of one of claim 1 to 3 system; It is characterized in that; Said digital hardware cell mesh comprises one or more chain of command user terminal functional module MSM, has the form of the ATCA veneer that inserts machine frame, realizes the function that user terminal is relevant with carrying control; Said digital hardware cell mesh comprises one or more chain of command wave beam sub-district functional module SBM, has the form of the ATCA veneer that inserts machine frame, realizes the function relevant with the wave beam sub-district; Said digital hardware cell mesh comprises one or more user plane common process module URMM, has the form of the ATCA veneer that inserts machine frame, realizes the resource management function of user plane.
10. like the described satellite base station of one of claim 1 to 3 system; It is characterized in that; Said digital hardware cell mesh comprises one or more user plane user terminal processes module UMSM, has the form of the ATCA veneer that inserts machine frame, realizes the user plane protocol processing capacity relevant with user terminal; Said digital hardware cell mesh comprises one or more user plane wave beam sub-district processing module USBM, has the form of the ATCA veneer that inserts machine frame, realizes the user plane protocol processing capacity relevant with the wave beam sub-district.
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Application publication date: 20120425 |