CN101958747B - Mobile communication system and method in high-speed moving environment - Google Patents
Mobile communication system and method in high-speed moving environment Download PDFInfo
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Abstract
The invention discloses mobile communication system and method and wireless communication receiving-transmitting equipment, applied to a high-speed moving environment. The mobile communication system comprises a CRH-MS (China Railway High-Speed Memory System) which is arranged on high-speed moving equipment, comprises a radio frequency unit and a base band processing unit, is used for realizing wireless signals receiving, transmitting and processing, is communicated with an access transceiver letter machine of the mobile communication system on the high-speed moving equipment, and can realize duplex wireless communication with CRH-BS (China Railway High-Speed Base Station) under a high-speed moving environment; the CRH-BS comprises a radio frequency unit and a base band processing unit, is used for realizing wireless signals receiving, transmitting and processing, carries out duplex communication with the CRH-MS, and can realize the communication with an access controller of the mobile communication system. The mobile communication system and the method provide the solution of reliable communication for users under a high-speed moving environment, can realize high-capacity reliable communication of different businesses (tones, high-speed data loading, multi-media and so on) for plurality of users, belonging to different system networks on plurality of trains.
Description
Technical field
The present invention relates to mobile communication system, relate in particular to the mobile communication system, the method that are applied under high-speed mobile environment.
Background technology
Along with the economic development of global international metropolis and urbanization process reach certain level, the Rail Transit Systems such as high speed city railway, inter-city train are fast-developing.The Beijing-Shanghai wide city railway of China, Beijing-Tianjin inter-city train and Shanghai Maglev railway are successfully built and put into effect, and the high-speed railway in Beijing to Shanghai also just progressively comes true.These advanced vehicles common features be train translational speed up to 300km/h～500km/h, future is even higher.So under high-speed moving state, guaranteeing that mobile subscriber's reliable communication is a huge challenge.
Current, although mobile communication technology has had progress at full speed, even but user also can often occur that speech is fuzzy when (maximum speed is 237km/h) carries out Speech Communication on automobile or on conventional train, goes offline, can not on-hook etc. phenomenon in poor service, for transmission rate, service quality (QoS) are required to more much higher media business, communication quality can be poorer.
Although current, for high-speed mobile environment, have some communication solutions, as TETRA digital cluster communication, GSM-R trunking communication or TD-SCDMA improvement project, due to the limitation of technology and cost aspect, they all cannot meet actual civilian needs.How solving broadband reliable communication problem under high-speed mobile environment is a difficult problem and the challenge that mobile communication faces for a long time, especially the current problem that urgently will solve.
Summary of the invention
The technical problem that the present invention will solve is to provide a kind of mobile communication system and method, can realize the mobile communication under high-speed mobile environment.
The invention provides a kind of mobile communication system that is applied to high-speed mobile environment, comprising:
Mobile radio telecommunications transceiver CRH-MS, can be arranged on high-speed mobile equipment, comprise radio frequency unit and baseband processing unit, for realizing the transmitting-receiving of wireless signal and signal, process, with the access transceiver direct communication of mobile communication system on described high-speed mobile equipment; Realize under high-speed mobile environment with fixed radio communication transceiver CRH-BS between duplex wireless communicate by letter;
Fixed radio communication transceiver CRH-BS, the movement that can be arranged on described high-speed mobile equipment is along the line, comprise radio frequency unit and baseband processing unit, for realizing transmitting-receiving and the signal of wireless signal, process, carry out duplex communication with described CRH-MS, realize communicating by letter between the access controller with described mobile communication system; The access transceiver communication of the different mobile communication system on CRH-MS equipment and high-speed mobile equipment; CRH-MS equipment comprises mixer along separate routes, for the signal of the access transceiver from different mobile communication system is carried out to uniform data packing, and the access transceiver by the packet delivery from CRH-BS equipment to corresponding mobile communication system; The terminal use that on described high-speed mobile equipment, the access transceiver of each standard communication system is different systems mobile communication system on described high-speed mobile equipment by the leakage antenna laid in described high-speed mobile equipment or the many antennas of general distribution provides radio communication service; Described leakage antenna or the many antennas of general distribution are the shared multiband antenna of multi-modulation scheme mobile communication system; The access transceiver of variant mobile communication system is connected with optical fiber multiband antenna or the many antennas of general distribution shared with same group of multi-modulation scheme in described high-speed mobile equipment, communicates with the user terminal of different mobile communication system in described high-speed mobile equipment; The access transceiver of the different systems communication system in described CRH-MS equipment and described high-speed mobile equipment utilizes optical fiber or feeder line to be directly connected together; During upstream data communication, described CRH-MS equipment, by signal shunt/mixer, the signal unification of the access transceiver from different mobile communication system is carried out to data compression and IP packing is processed, the subscriber signal of different mobile communication system is distinguished by IP flag, and described CRH-MS equipment is given described CRH-BS equipment by the packet after unified processing by exterior antenna paroxysm; During downlink data communication, described CRH-MS equipment receives packet by exterior antenna battle array from described CRH-BS, according to the sign in packet, by signal shunt/mixer, the signal of different mobile communication system is sent to corresponding access transceiver, by the shared multiband antenna of multi-modulation scheme in described high-speed mobile equipment or the many antennas of general distribution, send to the user terminal in described high-speed mobile equipment.
According to mobile communication system of the present invention embodiment, described CRH-BS equipment is realized communicating by letter between the access controller with described different mobile communication system.
According to mobile communication system of the present invention embodiment, CRH-BS equipment comprises protocol conversion subsystem, for the packet from CRH-MS being sent to after protocol conversion to the access controller of described different mobile communication system; The packet of the access controller from different mobile communication system is sent to CRH-MS after protocol conversion.
According to mobile communication system of the present invention embodiment, the antenna element of the radio frequency unit of CRH-MS equipment adopts single antenna, multi-antenna array or intelligent antenna technology; The baseband processing unit support of the described CRH-MS equipment wireless signal sending and receiving corresponding with the antenna element of the radio frequency unit of described CRH-MS equipment processed;
And/or
The antenna coverage mode employing distributed base station of CRH-BS equipment zooms out, general distribution antenna covers or leaky cable; The baseband processing unit of described CRH-BS equipment is supported wireless signal transmission processing and the reception & disposal of respective antenna coverage mode;
And/or
CRH-BS adopts the networking mode of fiber optic stretch or general distribution wireless access.
The present invention also provides a kind of method of mobile communication that is applied to high-speed mobile environment, comprising:
Be arranged on mobile radio telecommunications transceiver CRH-MS on high-speed mobile equipment and the access transceiver direct communication of the different mobile communication system on described high-speed mobile equipment; Described CRH-MS equipment comprises mixer along separate routes, for the signal of the access transceiver from different mobile communication system is carried out to uniform data packing, and the access transceiver by the packet delivery from described CRH-BS equipment to corresponding mobile communication system;
The duplex wireless that described CRH-MS realizes under high-speed mobile environment between the fixed radio communication transceiver CRH-BS on along the line with the movement that is arranged on described high-speed mobile equipment is communicated by letter;
Described CRH-BS realizes communicating by letter between the access controller with described mobile communication system;
The terminal use that on described high-speed mobile equipment, the access transceiver of each standard communication system is different systems mobile communication system on described high-speed mobile equipment by the leakage antenna laid in described high-speed mobile equipment or the many antennas of general distribution provides radio communication service; Described leakage antenna or the many antennas of general distribution are the shared multiband antenna of multi-modulation scheme mobile communication system; The access transceiver of variant mobile communication system is connected with optical fiber multiband antenna or the many antennas of general distribution shared with same group of multi-modulation scheme in described high-speed mobile equipment, communicates with the user terminal of different mobile communication system in described high-speed mobile equipment; The access transceiver of the different systems communication system in described CRH-MS equipment and described high-speed mobile equipment utilizes optical fiber or feeder line to be directly connected together; During upstream data communication, described CRH-MS equipment, by signal shunt/mixer, the signal unification of the access transceiver from different mobile communication system is carried out to data compression and IP packing is processed, the subscriber signal of different mobile communication system is distinguished by IP flag, and described CRH-MS equipment is given described CRH-BS equipment by the packet after unified processing by exterior antenna paroxysm; During downlink data communication, described CRH-MS equipment receives packet by exterior antenna battle array from described CRH-BS, according to the sign in packet, by signal shunt/mixer, the signal of different mobile communication system is sent to corresponding access transceiver, by the shared multiband antenna of multi-modulation scheme in described high-speed mobile equipment or the many antennas of general distribution, send to the user terminal in described high-speed mobile equipment.
Further, the access transceiver direct communication of the different mobile communication system on described CRH-MS equipment and described high-speed mobile equipment; Described CRH-BS equipment is realized communicating by letter between the access controller with described different mobile communication system.
The present invention also provides a kind of radio communication transceiver, can be arranged on high-speed mobile equipment, comprising:
Mixer, for processing carry out data packing from the signal unification of the access transceiver of different mobile communication system on described high-speed mobile equipment, sends to baseband processing unit along separate routes; Access transceiver to each mobile communication system will be provided from the downlink data of baseband processing unit;
Described baseband processing unit, for carrying out the signal from described shunt mixer to send to radio frequency unit after Base-Band Processing; Reception, from the signal of described radio frequency unit, sends to described shunt mixer after Base-Band Processing;
Described radio frequency unit, for received RF signal, sends to described baseband processing unit; From described baseband processing unit, receive signal, by antenna, launch after converting radiofrequency signal to.
The present invention also provides a kind of radio communication transceiver, and the movement that can be arranged on high-speed mobile equipment is gone up along the line, comprising:
Radio frequency unit, for sending or received RF signal;
Baseband processing unit for from described radio frequency unit received RF signal, sends to protocol conversion subsystem after Base-Band Processing; From described protocol conversion subsystem, receive signal, after Base-Band Processing, send to described radio frequency unit;
Protocol conversion subsystem, for receiving signal from described baseband processing unit, carries out sending to after protocol conversion the access controller of each mobile communication system; From the access controller of described each mobile communication system, receive signal, after protocol conversion, send to described baseband processing unit.
Mobile communication system and the method being applied under high-speed mobile environment provided by the invention, the access transceiver communication of the CRH-MS on high-speed mobile equipment and mobile communication system, CRH-BS communicates by letter with the access controller of mobile communication system, by the communication between CRH-MS and CRH-BS, realize the transparent transmission of data, realized the mobile communication under high-speed mobile environment.
Further, CRH-MS can with the access transceiver communication of various kinds of mobile communication system, CRH-BS can communicate by letter with the access controller of various kinds of mobile communication system, easy to utilize and save cost.
Accompanying drawing explanation
Fig. 1 illustrates the system schematic of an example of the mobile communication system that is applied to high-speed mobile environment of the present invention;
Fig. 2 illustrates in the embodiment of mobile communication system of the present invention and is positioned at the CRH-MS subsystem schematic diagram on high-speed mobile equipment;
Fig. 3 illustrates the high-level schematic functional block diagram of CRH-MS and CRH-BS subsystem in an embodiment of mobile communication system of the present invention;
Fig. 4 illustrates general distribution network coverage schematic diagram in an embodiment of mobile communication system of the present invention;
Fig. 5 illustrates the schematic diagram of protocol conversion subsystem in an embodiment of mobile communication system of the present invention;
Fig. 6 illustrates the flow chart of an embodiment of the method for mobile communication that is applied to high-speed mobile environment of the present invention;
Fig. 7 illustrates the flow chart of another embodiment of the method for mobile communication that is applied to high-speed mobile environment of the present invention;
Fig. 8 illustrates the structured flowchart of an embodiment of CRH-MS equipment of the present invention;
Fig. 9 illustrates the structured flowchart of another embodiment of CRH-BS equipment of the present invention.
Embodiment
With reference to the accompanying drawings the present invention is described more fully, exemplary embodiment of the present invention is wherein described.In the accompanying drawings, identical label represents identical or similar assembly or element.
Fig. 1 illustrates the system schematic of an example of the mobile communication system that is applied to high-speed mobile environment of the present invention.As shown in Figure 1, this mobile communication system comprises the fixed radio communication transceiver CRH-BS equipment 12 on the mobile radio telecommunications transceiver CRH-MS equipment 11 being positioned on high-speed mobile equipment 100 and the movement along the line that is positioned at high-speed mobile equipment 100.
Wherein, CRH-MS equipment 11 comprises radio frequency unit and baseband processing unit, can realize transmitting-receiving and the signal of wireless signal processes, with the access transceiver communication of mobile communication system on high-speed mobile equipment 100, and realize under high-speed mobile environment with CRH-BS equipment 12 between duplex wireless communicate by letter.The antenna element of the radio frequency unit of CRH-MS equipment 11 (AU) can adopt existing multiple antenna technology, such as single antenna, multi-antenna array, smart antenna etc.Base Band Unit is supported wireless signal transmission processing and the reception & disposal of multiple antenna technology.
CRH-BS equipment 12 comprises radio frequency unit and baseband processing unit, can realize the transmitting-receiving of wireless signal and signal and process, and carries out duplex communication with CRH-MS equipment under high-speed mobile environment 11, realizes communicating by letter between the access controller 14 with mobile communication system.CRH-BS12 can adopt multiple communication overlay technology, as technology such as distributed base station zooms out, general distribution antenna covering, leaky cables.Base Band Unit is supported wireless signal transmission processing and the reception & disposal of respective antenna coverage mode.
According to mobile communication system of the present invention embodiment, the access transceiver communication of the different mobile communication system on CRH-MS equipment 11 and high-speed mobile equipment 100.For example, the access transceiver direct communication such as the GSM BTS of the different mobile communication system such as GSM, the 3G on CRH-MS equipment 11 and high-speed mobile equipment 100,4G, WiMAX, Wi-Fi, WPAN, WSN, 3G Node B, 4G AP, WiMAX AN, Wi-Fi AP.CRH-BS equipment 12 is realized communicating by letter between the access controller 14 (as GSM BSC, 3G RNC, 4G AP, WiMAX AN, Wi-Fi AP etc.) with different mobile communication system.CRH-BS equipment 12 is realized from protocol conversion function between the packet of CRH-MS equipment 11 and the access controller of networks with different systems 14 (as GSM BSC, 3G RNC, 4G AP, WiMAX AN, Wi-FiAP etc.).
CRH-BS and CRH-MS can adopt any radio communication send and receive technology to realize the radio communication of the high data rate between CRH-BS and CRH-MS according to practical business demand, for example, and the transmission of radio links technology of employing based on MIMO-OFDM etc.
The demand that CRH-MS realizes according to communication system will complete different pieces of information processing capacity, such as the packing of data and unpack, data compression and decompress(ion) etc.; The demand that CRH-BS realizes according to communication system will complete different pieces of information processing capacity, such as the packing of data and unpack, data compression and decompress(ion) etc.CRH-MS and CRH-BS support in each mobile communication system, to access transceiver and the corresponding interface standard of access controller under existing framework, and CRH-BS completes from protocol conversion function between the packet of CRH-MS and the access controller of networks with different systems (as GSM BSC, 3G RNC, 4G AP, WiMAX AN, Wi-Fi AP etc.).Those skilled in the art can realize above-mentioned interface at CRH-MS and CRH-BS according to the consensus standard of mobile communication system, for not being described in detail at this for purpose of brevity.CRH-BS and CRH-MS realize the transparent transmission of the packet between access transceiver (as GSM BTS, 3G Node B, 4G AP, WiMAX AN, Wi-Fi AP etc.) and access controller (as GSM BSC, 3G RNC, 4G AP, WiMAX AN, Wi-Fi AP etc.).
In embodiments of the invention, CRH-BS can adopt network-building method under multiple high-speed mobile environment, as fiber optic stretch, the networking of general distribution wireless access.
According to one embodiment of present invention, between CRH-BS and the base station controller of networks with different systems, adopt IP transmission.
Fig. 2 illustrates in an embodiment of mobile communication system of the present invention and is positioned at the CRH-MS subsystem schematic diagram on high-speed mobile equipment.As shown in Figure 2, the cellphone subscriber that the access transceiver (as GSM BTS, 3G Node B, 4G AP, WiMAX AN, Wi-Fi AP etc.) of upper each standard communication system of high-speed mobile equipment 200 (for example, railway car) is different systems mobile communication system on car by the leakage antenna laid in railway car or the many antennas 23 of general distribution provides radio communication service.The many antennas of the antenna of interior or general distribution are the shared multiband antenna of multi-modulation scheme mobile communication system.The access transceiver of the variant mobile communication system in train is connected with optical fiber multiband antenna or the many antennas of general distribution shared with same group of multi-modulation scheme in car, communicates with the user terminal of different mobile communication system in compartment.The access transceiver of the different systems communication system in CRH-MS equipment 21 and high-speed mobile equipment 200 utilizes optical fiber or feeder line to be directly connected together; During upstream data communication, CRH-MS equipment 21, by signal shunt/mixer 22, the signal unification of the access transceiver from different mobile communication system is carried out to data compression and IP packing is processed, the subscriber signal of different mobile communication system is distinguished by IP flag, and CRH-MS equipment 21 sends to CRH-BS by the packet after unified processing by exterior antenna battle array 24; During downlink data communication, CRH-MS equipment 21 receives packet by exterior antenna battle array 24 from CRH-BS, according to the sign in packet, by signal shunt/mixer 22, the signal of different mobile communication system is sent to corresponding access transceiver, then by the shared multiband antenna of multi-modulation scheme in car or the many antennas of general distribution, send to the user terminal in compartment.
It may be noted that in above-described embodiment, data being carried out to IP packing processes, also can use other data formats in other embodiments, for example ATM cell, needs only between CRH-MS and CRH-BS and follows identical agreement, and they are the identical data formats of transmitting-receiving.If CRH-MS sends the data format of IP bag, CRH-BS supports the data receiver of IP bag; If CRH-MS sends the data format of ATM cell, CRH-BS supports the reception of ATM cell.
CRH-BS and CRH-MS can adopt any radio communication send and receive technology to realize the high data rate wireless communication between CRH-BS and CRH-MS according to practical business demand.Fig. 3 illustrates the high-level schematic functional block diagram of CRH-MS and CRH-BS communication subsystem in an embodiment of mobile communication system of the present invention, wherein, and CRH-MS and the CRH-BS transmission of radio links technology based on MIMO-OFDM.As shown in Figure 3, at transmitting terminal, multiple business information source by check code, chnnel coding, rate-matched, Bit Interleave, modulation, symbol interleaving, Space Time Coding, add pilot tone, IFFT, add CP, become time slot, framing etc. to process after, then through overpower control and filtering etc., by IA High Speed Channel, send.Receiving terminal receives data from IA High Speed Channel, through standby filtering, separate frame, separate time slot, remove CP, the processing such as FFT, channel estimating, Doppler estimate, decoding when empty, symbolic solution interweave, demodulation, bit deinterleaving, rate de-matching, channel decoding, verification decoding, be reduced to initial signal or data.
Those skilled in the art will appreciate that CRH-MS and CRH-BS can either be as transmitting terminals, also can be as receiving terminal.
Mobile communication system of the present invention can adopt general distribution wireless access networking mode.Each CRH-BS connects the separated general distribution antenna of N root and serves the area that N conventional cell covers.For high-speed mobile environment feature, the spacing of general distribution antenna is generally larger, kilometer level, to tens kilometers of levels, wherein can connect by modes such as distribution type fiber-optic, coaxial cables between general distribution antenna and CRH-BS, and signal processing function is completed by CRH-BS.Each CRH-BS controls a plurality of general distribution antennas, uses identical resource and train to communicate, each general distribution antenna only carries out simple signal transmitting and receiving, signal processing function is completed by CRH-BS, and the area coverage of each CRH-BS is the several times of conventional cell.
Fig. 4 illustrates general distribution network coverage schematic diagram in an embodiment of mobile communication system of the present invention.In Fig. 4, CRH-BS1 can connect many antennas, shows 3 general distribution antennas herein, and CRH-BS2 can connect many antennas, shows 4 general distribution antennas herein.If it is 3 that definition forms the antenna number of a generalized distributing cell, the antenna that CRH-BS1 connects so can form 1 generalized distributing cell (
region).This is equivalent to a fixedly composition structure for generalized distributing cell, and the number that forms the antenna (antenna array) of a generalized distributing cell does not change.
Consider the inner another kind of situation occurring of CRH-BS2, movement along with CRH-MS, the antenna element that forms a generalized distributing cell can be along with the mobile generation dynamic change of CRH-MS, and generalized distributing cell is no longer fixing structure, but adopts slide construction.Slip generalized distributing cell structure can be regarded the process of a window sliding as, the window that is equivalent to a dynamic change, the speed of the size of this window, shape and slip can dynamically change according to the direction of motion of the CRH-MS of its service and speed.When CRH-MS movement velocity is when very fast, sliding window can be larger to follow the movement of CRH-MS, reduces its switching.And when the direction of motion of CRH-MS changes, the direction of sliding window also can be followed it and be changed, the generalized distributing cell structure of a plurality of CRH-BS formations that different CRH-MS can be corresponding different
Fig. 5 illustrates the schematic diagram of the protocol conversion subsystem of CRH-BS in an embodiment of mobile communication system of the present invention.As shown in Figure 5, communicating by letter between CRH-BS52 and mobile communication system access controller 53 can adopt existing IP-based network, and increases corresponding protocol conversion module and realize.CRH-BS equipment 52 comprises protocol conversion subsystem 521, for the data that receive from CRH-MS are converted to IP packet, sends to the access controller 53 of each mobile communication system by IP network; The access controller 53 of mobile communication system also comprises protocol conversion subsystem 531, for the IP packet receiving from CRH-BS being converted to the data of correspondence system.In CRH-BS and CRH-MS duplex communication, CRH-BS equipment is received the data from CRH-MS equipment of propagating through wireless channel, radio frequency unit received RF signal; Baseband processing unit receives signal from radio frequency unit, through Base-Band Processing, sends to protocol conversion system.Protocol conversion system in CRH-BS equipment receives after the data from Base Band Unit, convert thereof into IP packet (communicating by letter and can realize by IP-based network between CRH-BS and mobile communication system access controller, the data format of IP based network transmission is IP bag).The access controller of mobile communication system is received after the IP bag from CRH-BS, thereby XieIPBao obtains the most original transmission data of originating subscriber, so also need accordingly protocol conversion system, the IP packet receiving converted to the data of correspondence system from CRH-BS.
Fig. 6 illustrates the flow chart of an embodiment of the method for mobile communication that is applied to high-speed mobile environment of the present invention.
As shown in Figure 6, in step 602, be arranged on mobile radio telecommunications transceiver CRH-MS on high-speed mobile equipment and the access transceiver direct communication of the mobile communication system on high-speed mobile equipment.CRH-MS can with high-speed mobile equipment on the access transceiver of one or more mobile communication system communicate.The access transceiver of mobile communication system (as GSM BTS, 3G Node B, 4G AP, WiMAX AN, Wi-Fi AP etc.) can adopt existing communication overlay technology (as technology such as spaced antenna, leaky cables) to cover whole high-speed mobile equipment.As long as user is just can be by setting up and to be directly connected with access transceiver (as GSM BTS, 3G Node B, 4G AP, WiMAX AN, Wi-Fi AP etc.) in effective overlay area, thereby is indirectly connected with CRH-MS, and maintenance is communicated by letter.
In step 604, the duplex wireless that CRH-MS realizes under high-speed mobile environment between the fixed radio communication transceiver CRH-BS on along the line with the movement that is arranged on high-speed mobile equipment is communicated by letter.CRH-BS and CRH-MS can adopt any radio communication send and receive technology to realize the radio communication of the high data rate between CRH-BS and CRH-MS according to practical business demand.
In step 606, CRH-BS realizes communicating by letter between the access controller with mobile communication system.CRH-BS can realize and the access controller of one or more mobile communication system between communication.When communicating by letter between the access controller of supporting with various kinds of mobile communication system, CRH-BS completes from protocol conversion function between the packet of CRH-MS and the access controller of networks with different systems (as GSM BSC, 3G RNC, 4G AP, WiMAX AN, Wi-Fi AP etc.).
CRH-BS and CRH-MS support in each mobile communication system, to access under existing framework transceiver and the corresponding interface standard of access controller.Realize the transparent transmission of access transceiver (as GSM BTS, 3G Node B, 4G AP, WiMAX AN, Wi-Fi AP etc.) and the packet between access controller (as GSM BSC, 3G RNC, 4G AP, WiMAX AN, Wi-Fi AP etc.) of mobile communication system.
Fig. 7 illustrates the flow chart of another embodiment of the method for mobile communication that is applied to high-speed mobile environment of the present invention.
As shown in Figure 7, in step 702, the access transceiver of CRH-MS various kinds of mobile communication system from high-speed mobile equipment receives signal.
In step 704, CRH-MS carries out data packing by mixer by the signal unification of the access transceiver from various kinds of mobile communication system to be processed.
In step 706, CRH-MS sends to the CRH-BS in the movement along the line of high-speed mobile equipment by the signal after packing.
In step 708, CRH-BS is separated into the signal receiving from CRH-MS the data of corresponding mobile communication system.
In step 710, CRH-BS carries out IP packing by the data of each mobile communication system, sends to the access controller of corresponding mobile communication system by IP network.
According to the description of Fig. 7 embodiment, those skilled in the art can realize the realization that mobile subscriber on other users and high-speed mobile equipment sends data.
Fig. 8 illustrates the structured flowchart of an embodiment of CRH-MS equipment of the present invention.As shown in Figure 8, this radio communication transceiver 800 comprises mixer 81, baseband processing unit 82 and radio frequency unit 83 along separate routes.Wherein, mixer 81 is processed for the signal unification of the access transceiver from different mobile communication system on high-speed mobile equipment being carried out to data packing along separate routes, sends to baseband processing unit 82; Access transceiver to each mobile communication system will be provided from the downlink data of baseband processing unit 82; Baseband processing unit 82, sends to radio frequency unit 83 for the signal from shunt mixer 81 is carried out after Base-Band Processing; Reception, from the signal of radio frequency unit 83, sends to mixer 81 along separate routes after Base-Band Processing.Radio frequency unit 83, for received RF signal, sends to baseband processing unit 82; From baseband processing unit 82, receive signals, by antenna, launch after converting radiofrequency signal to.
Fig. 9 illustrates the structured flowchart of another embodiment of CRH-BS equipment of the present invention.As shown in Figure 9, this radio communication transceiver 900 comprises protocol conversion subsystem 93, baseband processing unit 92 and radio frequency unit 91.Wherein, radio frequency unit 91, for sending or received RF signal; Baseband processing unit 92 for from radio frequency unit 92 received RF signals, sends to protocol conversion subsystem 93 after Base-Band Processing; From protocol conversion subsystem 93, receive signal, after Base-Band Processing, send to radio frequency unit 91; Protocol conversion subsystem 93, for receiving signal from baseband processing unit, carries out sending to after protocol conversion the access controller of each mobile communication system; From the access controller of each mobile communication system, receive signal, after protocol conversion, send to baseband processing unit 92.
Description of the invention provides for example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment with various modifications that the present invention's design is suitable for special-purpose.
Claims (11)
1. a mobile communication system that is applied to high-speed mobile environment, is characterized in that, comprising:
Mobile radio telecommunications transceiver CRH-MS, can be arranged on high-speed mobile equipment, comprise radio frequency unit and baseband processing unit, for realizing the transmitting-receiving of wireless signal and signal, process, with the access transceiver communication of mobile communication system on described high-speed mobile equipment; Realize under high-speed mobile environment with fixed radio communication transceiver between duplex wireless communicate by letter;
Described fixed radio communication transceiver CRH-BS, the movement that can be arranged on described high-speed mobile equipment is along the line, comprise radio frequency unit and baseband processing unit, for realizing transmitting-receiving and the signal of wireless signal, process, carry out duplex wireless with described CRH-MS and communicate by letter, realize communicating by letter between the access controller with described mobile communication system;
The access transceiver direct communication of the different mobile communication system on described CRH-MS equipment and described high-speed mobile equipment; Described CRH-MS equipment comprises mixer along separate routes, for the signal of the access transceiver from different mobile communication system is carried out to uniform data packing, and the access transceiver by the packet delivery from described CRH-BS equipment to corresponding mobile communication system;
The terminal use that on described high-speed mobile equipment, the access transceiver of each standard communication system is different systems mobile communication system on described high-speed mobile equipment by the leakage antenna laid in described high-speed mobile equipment or the many antennas of general distribution provides radio communication service; Described leakage antenna or the many antennas of general distribution are the shared multiband antenna of multi-modulation scheme mobile communication system; The access transceiver of variant mobile communication system is connected with optical fiber multiband antenna or the many antennas of general distribution shared with same group of multi-modulation scheme in described high-speed mobile equipment, communicates with the user terminal of different mobile communication system in described high-speed mobile equipment; The access transceiver of the different systems communication system in described CRH-MS equipment and described high-speed mobile equipment utilizes optical fiber or feeder line to be directly connected together; During upstream data communication, described CRH-MS equipment, by signal shunt/mixer, the signal unification of the access transceiver from different mobile communication system is carried out to data compression and IP packing is processed, the subscriber signal of different mobile communication system is distinguished by IP flag, and described CRH-MS equipment is given described CRH-BS equipment by the packet after unified processing by exterior antenna paroxysm; During downlink data communication, described CRH-MS equipment receives packet by exterior antenna battle array from described CRH-BS, according to the sign in packet, by signal shunt/mixer, the signal of different mobile communication system is sent to corresponding access transceiver, by the shared multiband antenna of multi-modulation scheme in described high-speed mobile equipment or the many antennas of general distribution, send to the user terminal in described high-speed mobile equipment.
2. mobile communication system according to claim 1, is characterized in that, described CRH-BS equipment is realized communicating by letter between the access controller with described different mobile communication system.
3. mobile communication system according to claim 2, it is characterized in that, described CRH-BS equipment comprises protocol conversion subsystem, for the packet from described CRH-MS being sent to after protocol conversion to the access controller of described different mobile communication system; The packet of the access controller from described different mobile communication system is sent to described CRH-MS after protocol conversion.
4. according to the mobile communication system described in claim 1,2 or 3, it is characterized in that, the antenna element of the radio frequency unit of described CRH-MS equipment adopts single antenna, multi-antenna array or intelligent antenna technology; The baseband processing unit support of the described CRH-MS equipment wireless signal sending and receiving corresponding with the antenna element of the radio frequency unit of described CRH-MS equipment processed;
And/or
The antenna coverage mode employing distributed base station of described CRH-BS equipment zooms out, general distribution antenna covers or leaky cable; The baseband processing unit of described CRH-BS equipment is supported wireless signal transmission processing and the reception & disposal of respective antenna coverage mode.
5. according to the mobile communication system described in claim 1,2 or 3, it is characterized in that, described CRH-BS adopts the networking mode of fiber optic stretch or general distribution wireless access.
6. according to the mobile communication system described in claim 1,2 or 3, it is characterized in that the transmission of radio links technology based on MIMO-OFDM between described CRH-BS and CRH-MS;
And/or
Between described CRH-BS and the access controller of described mobile communication system, adopt IP transmission.
7. a method of mobile communication that is applied to high-speed mobile environment, is characterized in that, comprising:
Be arranged on mobile radio telecommunications transceiver CRH-MS on high-speed mobile equipment and the access transceiver direct communication of the different mobile communication system on described high-speed mobile equipment; Described CRH-MS equipment comprises mixer along separate routes, for the signal of the access transceiver from different mobile communication system is carried out to uniform data packing, and the access transceiver by the packet delivery from described CRH-BS equipment to corresponding mobile communication system;
The duplex wireless that described CRH-MS realizes under high-speed mobile environment between the fixed radio communication transceiver CRH-BS on along the line with the movement that is arranged on described high-speed mobile equipment is communicated by letter;
Described CRH-BS realizes communicating by letter between the access controller with described mobile communication system;
The terminal use that on described high-speed mobile equipment, the access transceiver of each standard communication system is different systems mobile communication system on described high-speed mobile equipment by the leakage antenna laid in described high-speed mobile equipment or the many antennas of general distribution provides radio communication service; Described leakage antenna or the many antennas of general distribution are the shared multiband antenna of multi-modulation scheme mobile communication system; The access transceiver of variant mobile communication system is connected with optical fiber multiband antenna or the many antennas of general distribution shared with same group of multi-modulation scheme in described high-speed mobile equipment, communicates with the user terminal of different mobile communication system in described high-speed mobile equipment; The access transceiver of the different systems communication system in described CRH-MS equipment and described high-speed mobile equipment utilizes optical fiber or feeder line to be directly connected together; During upstream data communication, described CRH-MS equipment, by signal shunt/mixer, the signal unification of the access transceiver from different mobile communication system is carried out to data compression and IP packing is processed, the subscriber signal of different mobile communication system is distinguished by IP flag, and described CRH-MS equipment falls by exterior antenna the described CRH-BS equipment that sends to by the packet after unified processing; During downlink data communication, described CRH-MS equipment receives packet by exterior antenna battle array from described CRH-BS, according to the sign in packet, by signal shunt/mixer, the signal of different mobile communication system is sent to corresponding access transceiver, by the shared multiband antenna of multi-modulation scheme in described high-speed mobile equipment or the many antennas of general distribution, send to the user terminal in described high-speed mobile equipment.
8. method of mobile communication according to claim 7, is characterized in that, described CRH-BS equipment is realized communicating by letter between the access controller with described different mobile communication system.
9. according to the method for mobile communication described in claim 7 or 8, it is characterized in that, the antenna element of the radio frequency unit of described CRH-MS equipment adopts single antenna, multi-antenna array or intelligent antenna technology; The baseband processing unit support of the described CRH-MS equipment wireless signal sending and receiving corresponding with the antenna element of the radio frequency unit of described CRH-MS equipment processed;
And/or
The antenna coverage mode employing distributed base station of described CRH-BS equipment zooms out, general distribution antenna covers or leaky cable; The baseband processing unit of described CRH-BS equipment is supported wireless signal transmission processing and the reception & disposal of respective antenna coverage mode.
10. according to the method for mobile communication described in claim 7 or 8, it is characterized in that, described CRH-BS adopts the networking mode of fiber optic stretch or general distribution wireless access.
11. according to the method for mobile communication described in claim 7 or 8, it is characterized in that the transmission of radio links technology based on MIMO-OFDM between described CRH-BS and CRH-MS;
And/or
Between described CRH-BS and the access controller of described mobile communication system, adopt IP transmission.
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| CN201010290975.4A CN101958747B (en) | 2010-09-25 | 2010-09-25 | Mobile communication system and method in high-speed moving environment |
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| CN201010290975.4A CN101958747B (en) | 2010-09-25 | 2010-09-25 | Mobile communication system and method in high-speed moving environment |
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| CN102130882A (en) * | 2011-04-14 | 2011-07-20 | 北京邮电大学 | OFDM (orthogonal frequency division multiplexing)-based high-speed rail mobile communication method and system |
| WO2011157165A2 (en) * | 2011-06-02 | 2011-12-22 | 华为技术有限公司 | Distributed base station system |
| US8995956B2 (en) | 2011-09-23 | 2015-03-31 | GM Global Technology Operations LLC | System and method for vehicle based cellular offload |
| US9386624B2 (en) | 2014-03-28 | 2016-07-05 | GM Global Technology Operations LLC | Systems and methods of facilitating portable device communications |
| US9386462B2 (en) | 2014-03-28 | 2016-07-05 | GM Global Technology Operations LLC | Methods and apparatus for determining and planning wireless network deployment sufficiency when utilizing vehicle-based relay nodes |
| CN105490714B (en) * | 2014-09-16 | 2018-10-26 | 南京中兴新软件有限责任公司 | The multicarrier sending and receiving method of terminal, terminal |
| CN105846889A (en) * | 2014-10-24 | 2016-08-10 | 郭建 | High-speed train-ground communication system with distributed antennas for high-speed rail |
| CN106737868A (en) * | 2017-01-16 | 2017-05-31 | 深圳汇创联合自动化控制有限公司 | A kind of mobile-robot system |
| CN109149121B (en) * | 2018-08-29 | 2021-01-12 | 北京交通大学 | Vacuum tube flying train communication system with electromagnetic medium directly covering leaky-wave system |
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| JP3912509B2 (en) * | 2002-06-24 | 2007-05-09 | 日本電気株式会社 | Mobile communication system, radio switching method, mobile base station, and portable terminal |
| CN101257667B (en) * | 2008-02-01 | 2011-11-30 | 中兴通讯股份有限公司 | Base station transmitting/receiving device |
| JP4988644B2 (en) * | 2008-04-24 | 2012-08-01 | 京セラ株式会社 | Relay station, radio communication system, and radio communication method |
| CN101801008A (en) * | 2010-01-04 | 2010-08-11 | 泉州泽仕通科技有限公司 | Field intensity covering method for high-speed moving object |
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