CN108809399A - Airborne communication device and earth-space communication method - Google Patents
Airborne communication device and earth-space communication method Download PDFInfo
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- CN108809399A CN108809399A CN201710304900.9A CN201710304900A CN108809399A CN 108809399 A CN108809399 A CN 108809399A CN 201710304900 A CN201710304900 A CN 201710304900A CN 108809399 A CN108809399 A CN 108809399A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18502—Airborne stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15507—Relay station based processing for cell extension or control of coverage area
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18539—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection
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- Computer Networks & Wireless Communication (AREA)
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- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A kind of airborne communication device of offer of the embodiment of the present invention and earth-space communication method, wherein airborne communication device includes transmitting-receiving control unit and over the ground aerial array over the ground；When the signal strength of earth-space communication is more than predetermined threshold value, transmitting-receiving control unit is cut the first information of at least one terminal in cabin to obtain at least two parallel substream of data over the ground, and each substream of data is respectively mapped in each array element of aerial array over the ground, ground communication facilities is sent to by each array element.Airborne communication device provided in this embodiment, by being communicated with ground communication facilities, take full advantage of ground communication facilities construction cost it is low, with roomy advantage, the communication service of excellent performance and price material benefit is provided for the user in cabin, the user experience is improved.Meanwhile when earth-space communication environment is preferable, each array element of aerial array sends or receives different data simultaneously over the ground in airborne communication device, improves channel capacity, increases communication flows.
Description
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of airborne communication device and earth-space communication methods.
Background technology
Although aircraft in flight course, can keep stable communications status, this communication clothes with ground at any time
Only for being used between aircraft and ground control tower or ground command center, revenue passenger can not almost be enjoyed externally aboard for business
Communication service.Therefore, the commercial communication service of aviation field is very weak at present.But with the fast development of science and technology, intelligence is eventually
End and mobile communications network become increasingly popular, the especially long-distance business visitor of birdman, because business is seized every minute and second,
The demand of on-air radio network is just increasingly being promoted.The communication at any time with the external world can be realized during aircraft navigation,
Become these busy business people hope the most urgent.
Mobile communication is realized in civil aviation, there are two types of more feasible resolving ideas：One is using satellite link
It is connect with terrestrial communication networks, another is to carry out wireless coverage to aerial using the base station being arranged on ground.
In May, 2012, Emirates Airlines announce that the service of on-air radio network has covered its 21 frame runed at present comprehensively
A380 passenger planes, passenger can A Hang A380 extend over the entire globe five continents, 18 destination Route Networks flight in, log in internet
Surfing, processing Email, realization online reading etc., this Aeronautical Service greatly strengthen Emirates Airlines to middle and high end commercial affairs
The attraction of personage.What Emirates Airlines were utilized is exactly satellite communication, and undeniably, satellite-based civil aviation is logical
Letter has many advantages such as big technology maturation, strong security, the small, capacity of interference, wide coverage, stable.But meanwhile because
To be related to satellite transformation the service for sharing each passenger equally is will inevitably lead in this way so having higher credit requirement
The promotion of expense, this will be a no small financial burden for revenue passenger.On the other hand, the bandwidth of satellite communication
Critical constraints are difficult to passenger and provide unimpeded wireless service, and user experience is poor.
So it is urgent to provide a kind of now air communications scheme based on ground base station, to solve base in the prior art
In satellite air communications scheme because the defects such as existing communications cost is high, bandwidth is low, lead to asking for poor user experience
Topic.
Invention content
Airborne communication device and earth-space communication method provided in an embodiment of the present invention, mainly solving base in the prior art
The problem that the communications cost existing for the air communications scheme of satellite is high, bandwidth is low.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of airborne communication device, including control is received and dispatched over the ground
Unit and aerial array over the ground；
The transmitting-receiving control unit over the ground is for will need the first information for being sent to ground communication facilities cut
The substream of data parallel at least two, and each substream of data is respectively mapped to each array element of the aerial array over the ground
On；
Each array element of the aerial array over the ground is used for will be from each data of the transmitting-receiving control unit over the ground
It is streamed to the ground communication facilities.
The embodiment of the present invention also provides a kind of earth-space communication method, including to earth signal transmission process；It is described to earth signal
Transmission process includes：
Airborne communication device will need the first information for being sent to ground to be cut to obtain at least two parallel data
Subflow；
Each substream of data is respectively mapped in each array element of aerial array over the ground by the airborne communication device, and is controlled
It makes each array element and each substream of data is transferred to ground communication facilities.
The embodiment of the present invention also provides a kind of computer storage media, and computer is stored in the computer storage media
Executable instruction, the computer executable instructions are used to execute earth-space communication method any one of above-mentioned.
The beneficial effects of the invention are as follows：
The airborne communication device and earth-space communication method provided according to embodiments of the present invention, wherein airborne communication device packet
Include transmitting-receiving control unit over the ground and aerial array over the ground；When the signal strength of earth-space communication is more than predetermined threshold value, receive and dispatch over the ground
Control unit is cut the first information of at least one terminal in cabin to obtain at least two parallel substream of data,
And each substream of data is respectively mapped in each array element of aerial array over the ground, ground communication facilities is sent to by each array element.This
The airborne communication device that embodiment provides takes full advantage of ground communication facilities and builds by being communicated with ground communication facilities
If at low cost, with roomy advantage, the communication service of excellent performance and price material benefit is provided for the user in cabin, is improved
User experience.Meanwhile when earth-space communication environment is preferable, each array element of aerial array is sent simultaneously over the ground in airborne communication device
Or different data are received, channel capacity is improved, communication flows is increased.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram for the airborne communication device that the embodiment of the present invention one provides；
Fig. 2 is another structural schematic diagram for the airborne communication device that the embodiment of the present invention one provides；
Fig. 3 is a kind of structural schematic diagram of Wireless Access Unit in Fig. 2；
Fig. 4 is a kind of structural schematic diagram of ground communication facilities provided by Embodiment 2 of the present invention；
Fig. 5 is a kind of structural schematic diagram of beechnut provided by Embodiment 2 of the present invention；
Fig. 6 is a kind of structural schematic diagram for the beechnut that the embodiment of the present invention three provides；
Fig. 7 is a kind of schematic diagram for the beechnut that the embodiment of the present invention three provides；
Fig. 8 is a kind of flow chart of first information transmission process in the airborne communication method that the embodiment of the present invention four provides；
Fig. 9 is a kind of flow chart of the second message transmitting procedure in the airborne communication method that the embodiment of the present invention four provides.
Specific implementation mode
The embodiment of the present invention is described in further detail below by specific implementation mode combination attached drawing.
Embodiment one：
In order to solve the problems, such as that existing satellite-based air communications scheme communications cost is high, bandwidth is low, the present embodiment carries
For a kind of airborne communication device for earth-space communication, the structural representation for the airborne communication device that Fig. 1 is provided is referred to below
Figure：
Airborne communication device 10 refers to the communication equipment being deployed on aircraft comprising 11 He of transmitting-receiving control unit over the ground
Aerial array 12 over the ground.Include two or more bays in aerial array 12 over the ground, each bay with receive over the ground
Control unit 11 is sent out to connect.Airborne communication device 10 earthward can send the first information by communication equipment, below to airborne communication
The process that equipment 10 sends the first information is introduced：The acquisition of transmitting-receiving control unit 11 over the ground needs to be sent to ground communication facilities
The first information after, which is cut to obtain at least two parallel substream of data, then, over the ground transmitting-receiving control
These substream of data are respectively mapped in each array element of aerial array 12 over the ground by unit 11.The middle first information of the present embodiment can
With at least one terminal in cabin, it should be appreciated that the first information can refer to an individual information, can also
Refer to multiple information that transmitting-receiving control unit 11 is received out of cabin from terminal over the ground.
On the other hand, airborne communication device 10 can also receive ground communication facilities and send the second information, in the present embodiment
In, be additionally operable to will be received by each array element according to the fading characteristic of 12 each array element of aerial array over the ground for transmitting-receiving control unit 11 over the ground
Panel data subflow reconfigured, reduction obtain the second information from ground communication facilities.If the second information is ground
Face communication equipment is sent to some terminal in cabin, then after the recovery of transmitting-receiving control unit 11 obtains the second information over the ground,
Second information can be sent to corresponding terminal according to information such as the destination IPs of the second information.
We can be referred to as " spatial reuse " to above-mentioned earth-space communication process, and spatial reuse can be preferable in communication quality
In the case of, channel capacity is significantly promoted, communication flows is increased.In spatial reuse, each array element of aerial array 12 over the ground
What is sent and received is all different substream of data.It is understood that airborne communication device 10 can be in any environment
It is communicated according to said program, however, to ensure that the communication quality of earth-space communication process, a kind of example of the present embodiment is worked as
In, communication environment of the airborne communication device only between ground communication facilities is preferable, i.e. the signal strength of earth-space communication is more than
When predetermined threshold value, communicate in the manner described above.
Communication environment between airborne communication device 10 and ground communication facilities is poor, i.e. the signal strength of earth-space communication
When less than or equal to predetermined threshold value, transmitting-receiving control unit 11, can be to when sending the first information of terminal in cabin over the ground
One information is replicated, and multiple first information after duplication are respectively mapped in each array element of aerial array 12 over the ground, so
Allowing each array element of aerial array 12 over the ground afterwards, earthward communication equipment sends the identical first information.Ground communication is come from receiving
When the second information of equipment, what 12 each array element of aerial array actually received over the ground is all identical second information, but because
Earth-space communication is second-rate, so, transmitting-receiving control unit 11 needs the reception result by each array element to restore over the ground, to
Obtain the second information that quality is better than the independent reception result of each array element.
In this communication process, what each array element of aerial array 12 sent and received over the ground is all identical information,
This promotes the quality that receiving terminal receives signal primarily in the case where earth-space communication quality is bad, ensures communication process
Reliability.This earth-space communication process we can be referred to as " space diversity ".
For room for promotion spatial multiplexing gain and space diversity gain simultaneously, in a kind of example of the present embodiment, receive over the ground
It sends out control unit 11 and carries out MIMO (Multiple-Input with ground communication facilities by controlling aerial array 12 over the ground
Multiple-Out-put, multiple-input and multiple-output) communication.And since MIMO technology supports beam forming, so, it can also allow
Earth-space communication has more specific aim.It draws an analogy, traditional communication illuminates entire room just as light bulb；And support what velocity of wave shaped
MIMO is communicated just as flashlight, and light can be intelligently pooled on target location.
Airborne communication device 10 can also include Wireless Access Unit, be used to receive connecing at least one terminal in cabin
Enter.And the first information from cabin terminal can be sent to transmitting-receiving control unit 11 over the ground, transmitting-receiving control over the ground will be come from
Second information of unit 11 processed is sent to corresponding terminal in cabin.
In a kind of example of the present embodiment, signal format used in engine room inside communication is the first signal format,
And what is used between airborne communication device 10 and ground communication facilities is second signal format, the first signal format and second
Signal format is two different signal formats, so, it is accessible in order to which the terminal of engine room inside can be realized with the external world
It communicates, needs to carry out format conversion to the information inside and outside cabin in the present embodiment.As shown in Fig. 2, airborne communication device 10 includes
Further include the letter for format conversion other than Wireless Access Unit 13, over the ground transmitting-receiving control unit 11 and over the ground aerial array 12
Number format conversion unit 14.Transmitting-receiving control unit 11 is logical with Wireless Access Unit 13 and over the ground respectively for signal format converting unit 14
Letter connection.It is used to the first information received from Wireless Access Unit 13 being converted to second signal lattice by the first signal format
Formula, also by the second information received from transmitting-receiving control unit 11 over the ground by second signal format conversion at the first signal lattice
Formula.
Wireless Access Unit 13 can be into cabin terminal unified LAN optimization environment, such as WiFi are provided
(Wireless-Fidelity, Wireless Fidelity) access, ZigBee (purple honeybee) accesses, UWB (ultra wide band) accesses etc..Such as Fig. 3 institutes
Show, Wireless Access Unit 13 includes WiFi access units 131 and ZigBee access units 132 in the present embodiment.In practical application
In the process, Wireless Access Unit 13 can open any one or two therein while open to be serviced for passenger.
The first information is sent come earthward communication equipment by accessing WiFi access units 131 to terminal first below, with
And ground communication facilities is introduced to the process of terminal the second information of transmission：
In this example, WiFi access units 131 provide unified WiFi nets to the terminal of engine room inside in the cabin
Network environment.When terminal needs the outgoing first information, the first information can be sent to WiFi access units by WiFi signal
At 131, the first information is transmitted to signal format converting unit 14, signal format converting unit 14 by WiFi access units 131 again
The first information of WiFi signal format is converted into second signal format.Specifically, signal format converting unit 14 can be right
The first information of WiFi signal format is demodulated to obtain baseband signal, then will be needed for modulates baseband signals to second signal format
Radio frequency band, formed second signal format the first information.To after the converting of the first information, signal format conversion is single
The transformed first information is transferred to transmitting-receiving control unit 11 over the ground by member 14, is reflected based on space by transmitting-receiving control unit 11 over the ground
It penetrates after being cut to the first information and obtains parallel substream of data, and these substream of data are respectively mapped to aerial array 12
Each array element on, controlling each array element, earthward communication equipment is emitted.
When ground communication facilities sends the second information to terminal, the aerial array over the ground 12 of airborne communication device 10 will
The substream of data of second signal format is received, transmitting-receiving control unit 11 recombinates these substream of data over the ground, restores
To the second information, second information is then transferred to signal format converting unit 14.Signal format converting unit 14 is by second
Second information of signal format is converted into the second information of WiFi signal format, and transformed second information is sent to WiFi
Access unit 131.Specifically, signal format converting unit 14 is also to be demodulated to the second information of second signal format, obtain
To baseband signal, then by modulates baseband signals to the corresponding frequency range of WiFi signal, form the second information of WiFi signal format.
It, can be according to letters such as the destination IPs of the receiving terminal carried in the second information after WiFi access units 131 receive the second information
Breath, corresponding terminal is transferred to by second information.
It is assumed that the terminal in cabin realizes leading between ground communication facilities by accessing ZigBee access units 132
Letter：
When terminal needs the outgoing first information, the first information can be sent to ZigBee accesses by ZigBee signals
At unit 132, the first information is transmitted to signal format converting unit 14, signal format conversion by ZigBee access units 132 again
The first information of ZigBee signal formats is converted into second signal format by unit 14.Specifically, signal format converting unit
14 can demodulate the first information of ZigBee signal formats to obtain baseband signal, then modulates baseband signals to second are believed
Radio frequency band needed for number format forms the first information of second signal format.To after the converting of the first information, signal lattice
The transformed first information is transferred to transmitting-receiving control unit 11 over the ground by formula converting unit 14, by 11 base of transmitting-receiving control unit over the ground
Parallel substream of data is obtained after space reflection cuts the first information, and these substream of data are respectively mapped to day
In each array element of linear array 12, controlling each array element, earthward communication equipment is emitted.
When ground communication facilities sends the second information to terminal, the aerial array over the ground 12 of airborne communication device 10 will
The substream of data of second signal format is received, transmitting-receiving control unit 11 recombinates these substream of data over the ground, restores
To the second information, second information is then transferred to signal format converting unit 14.Signal format converting unit 14 is by second
Second information of signal format is converted into the second information of ZigBee signal formats, and transformed second information is sent to
ZigBee access units 132.Specifically, signal format converting unit 14 is also to be solved to the second information of second signal format
It adjusts, obtains baseband signal, then by modulates baseband signals to the corresponding frequency range of ZigBee signals, form ZigBee signal formats
Second information.It, can be according to the receiving terminal carried in the second information after ZigBee access units 132 receive the second information
Second information is transferred to corresponding terminal by the information such as destination IP.
In the present embodiment, N-Generation mobile communication technology is being based between aerial array 12 and ground communication facilities over the ground
It is communicated, relative to 3rd generation mobile communication technology, is started from LTE (Long term Evolution, long term evolution), the
Four third-generation mobile communication technologies and it is capable of providing higher transmission rate higher than the mobile communication technology of forth generation, so, in this reality
It applies in example, N is more than or equal to 4.
For now, fourth generation mobile communication technology is exactly the most ripe stage, so, show in one kind of the present embodiment
In example, the N is equal to 4, and aerial array 12 passes through TDD (Time Division to the control of transmitting-receiving control unit 11 over the ground over the ground
Duplexing, time division duplex) or FDD (Frequency Division Duplexing, frequency division duplex) LTE at least one
Kind is communicated with ground communication facilities.
When aerial array 12 is communicated with ground communication facilities over the ground, it can be led to using 2.4GHz frequency ranges
Letter.On the modulates baseband signals to 2.4G frequency ranges that transmitting-receiving control unit 11 can obtain demodulation over the ground, and it is transferred to antenna over the ground
Array 12.On the other hand, the substream of data that transmitting-receiving control unit 11 receives from aerial array 12 over the ground over the ground is also
2.4GHz frequency ranges, transmitting-receiving control unit 11, also can be in passing by the second information when being recombinated to these substream of data over the ground
Frequency range be modulated to the frequency range where the communication of terminal in cabin.2.4GHz global general-use band limits be 2.4GHz~
2.483GHz, therefore, 2.4GHz frequency ranges can provide the signal bandwidth of 80M, can meet the high speed Internet access demand of passenger.Together
When, because 2.4GHz frequency ranges are global general-use frequency ranges, if transmitting-receiving control unit 11 controls aerial array 12 over the ground over the ground
2.4GHz band communications are used with ground communication facilities, then operator just need not specially buy special frequency range.In such case
Under, the burden of operator can be reduced.Correspondingly, when user enjoys wireless network aboard, the expense paid is needed also
It can be reduced, so, aerial array 12 communicate and can also be reduced using 2.4GHz frequency ranges with ground communication facilities over the ground
The financial burden of revenue passenger.
For aircraft in high-altitude stabilized flight, the speed of a ship or plane is generally more than 1000 kilometers/hour, in this communication one end high-speed mobile
Scene under, between airborne communication device 10 and ground communication facilities communication performance influence it is maximum be exactly Doppler effect.
Doppler effect points out, wave wave source shift to observer it is close when receives frequency get higher, and received when wave source is far from observer
Frequencies go lower.Airborne communication device 10 and ground communication facilities, can be respectively as the waves of transmitting electromagnetic wave during communication
Source, the side for receiving electromagnetic wave are equivalent to " observer ".Although between airborne communication device 10 and ground communication facilities away from
From distant, but since airborne communication device 10 is high-speed mobile in the air, so, relative motion between the two is still very
Obviously.With receiving terminal relative motion occurs for electromagnetic wave emission source, also just inevitably results in the frequencies of propagation received by receiving terminal
It changes.So if Doppler effect is not eliminated, will make between airborne communication device 10 and ground communication facilities
Communication performance is had a greatly reduced quality.
For this purpose, the aerial array over the ground 12 in the present embodiment in airborne communication device 10 is communicated with ground communication facilities and is adopted
Specific frequency can be calculated according to adaptive frequency track and backoff algorithm and be obtained.Adaptive frequency track and compensation are calculated
Method has fully considered relative distance and airborne communication device 10 itself between airborne communication device 10 and ground communication facilities
Movement speed.So communicated using the frequency that adaptive frequency track and backoff algorithm are calculated, it can be effective gram
Take doppler shift effect caused by aircraft high-speed flight.
Although being communicated over the ground using signals such as 4G, 5G between aerial array 12 and ground communication facilities, at this
In embodiment, the terminal and Wireless Access Unit 13 and Wireless Access Unit 13 and signal format conversion in aircraft cabin are single
Between member 14 communicated using local area network signal.That is, the terminal in cabin is under LAN environment, this
It is more convenient that terminal is managed for the scheme for allowing the terminal in cabin to be under cellular environment.Simultaneously as
Unified LAN environment, such as WiFi environment are provided in cabin.Therefore, as long as terminal has the work(of access WLAN
It can enjoy high aerial wireless network.This enables to the laptop of passenger, PAD (Portable Android
Device, tablet computer), PDA (Personal Digital Assistant, personal digital assistant) etc. cannot directly access bee
The mobile terminal of nest network could be used that any wireless network services.In addition, in the period of the mobile communication technology update of mainstream,
For example, from 4G excessively to 5G when, most users might not be replaced with the change of mobile communication technology immediately
End product.In this case, even 5G has more obvious advantage in network performance, such as network speed etc., still
The passenger for not replacing electronic product can not but experience.And the scheme of unified LAN environment is provided directly in cabin, but
Can be by the unified equipment updated in airborne communication device, and make passenger experience to better service, to improve user
Service experience.
In the present embodiment, aerial array 12 can be enhanced airborne antenna over the ground, and transmitting-receiving control unit 11 can over the ground
To be independently deployed on the physical entity for having processing function, such as dispose on the server, it can also be with other equipment instrument
It is deployed on same physical entity.When transmitting-receiving control unit 11 is independently deployed on a server over the ground, the server
Communication device obtains the terminal in cabin and needs to send the first information of ground communication facilities, then by processor to the first information
Cutting process is carried out, at least two parallel substream of data is obtained, is then mapped on each airborne antenna.For receiving second
The substream of data that oneself is received is transferred to processor by the process of information, multiple airborne antennas, and processor is according to each airborne day
The fading characteristic of line reconfigures these each substream of data, obtains the second information, then communication device is transferred to send out
It goes, to be transferred to corresponding terminal in cabin.In addition, transmitting-receiving control unit 11 can lead to other equipment deployment together over the ground,
Such as collect transmitting-receiving control in couples in LTE CPE (Customer Premise Equipment, customer terminal equipment) equipment
The function of unit 11, allows transmitting-receiving control unit 11 and LTE cpe devices common processor and communication device over the ground.
The function of aforementioned Wireless Access Unit 13 can be realized by radio reception device respectively, such as WiFi AP
(Wireless Access Point, wireless access points).And the function of signal format converting unit 14 can then pass through
LTE cpe devices are realized.
Airborne communication device provided in this embodiment can directly pass through transmitting-receiving control unit over the ground and aerial array over the ground
It realizes the communication between ground communication facilities, the scheme of onboard networks covering is provided with respect to satellite, is reduced civilian
The cost of air communications also reduces the financial burden of user.Meanwhile based on MIMO technology carry out communication can utilize multiple antennas
Inhibit channel fading, improve the reliability of channel, better spatial multiplex gains and space diversity gain are provided so that is parallel
Data flow can transmit simultaneously.On the other hand, since the signal format converting unit in airborne communication device can believe honeycomb
Number it is converted into WiFi signal or ZigBee signals, so a variety of electronic products of user can be allowed to enjoy wireless network, and
It is not limited only to those end products for having access to cellular network.It ensure that user can freely cut between various terminals product
It changes, the user experience is improved.
Further, the airborne communication device in the present embodiment is led to using 2.4GHz frequency ranges with ground communication facilities
Letter, reduces the cost of earth-space communication, also reduces passenger accordingly and enjoy financial burden caused by wireless network.
Embodiment two：
In order to preferably be situated between to the communication process in embodiment one between airborne communication device and ground communication facilities
It continues, the present embodiment provides a kind of ground communication facilities coordinated with airborne communication device in embodiment one, and including real
Apply the GCS Ground Communication System of airborne communication device in example one, it is shown in Figure 4 go out a kind of structure of ground communication facilities show
It is intended to：
Ground communication facilities 40 includes to empty transmitting-receiving control unit 41 and to empty aerial array 42.To in empty aerial array 42
Including two and more than two antennas namely bay.Each array element be used for receive airborne communication device transmission by first
The substream of data that information is cut, and each substream of data received is transferred to empty transmitting-receiving control unit 41；Another party
Face, to each array element of empty aerial array 42 be additionally operable to will to empty transmitting-receiving control unit by each of the second information cutting gained
Substream of data is transferred to airborne communication device.
Basis is used to empty transmitting-receiving control unit 41 each array element be received to the fading characteristic of each array element of empty aerial array
To panel data subflow reconfigured, reduction obtain the first information from airborne communication device, this to data son
It is " performing space-time decoding " that stream, which is recombinated to obtain member to send the process of information,.After " performing space-time decoding ", to sky transmitting-receiving control
The first information is sent to core net by unit 41.Relative to the process of " performing space-time decoding ", empty transmitting-receiving control unit 41 will be come from
Second information of core net is cut to obtain at least two parallel substream of data, and each substream of data is respectively mapped to pair
The process of each array element of empty aerial array 42 is " space and time mapping ", and panel data subflow, can be by each institute's battle array after mapping
Member is sent to airborne communication device.
Beechnut 5 shown in Figure 5, the beechnut 5 include the airborne communication that embodiment one provides
Equipment 10 and ground communication facilities 40.
For the structure of airborne communication device 10, it is referred to the introduction of embodiment one, which is not described herein again, the present embodiment
Ground communication facilities 40 therein is introduced in emphasis：
Second signal is passed through to empty aerial array 42 and airborne communication device 10 for controlling to empty transmitting-receiving control unit 41
Format is communicated.Second signal format is based on fourth generation mobile communication technology or is higher than fourth generation mobile communication technology, this
Sample can provide the wireless network experience of high speed to the user.
In order to reduce the cost of aviation wireless coverage, in the present embodiment, empty transmitting-receiving control unit 41 is controlled to empty antenna
Array 42 communicates the 2.4GHz frequency ranges used therebetween with the use of airborne communication device 10 and interacts, and so there is no need to transport
It seeks quotient and specially buys control frequency range again, to reduce the financial burden that operator provides wireless coverage, reducing revenue passenger makes
With the burden of any wireless network services.As for specific communication frequency, in order to effectively overcome Doppler effect to air-ground communication system
The influence for 5 communication performances of uniting, in the present embodiment to empty transmitting-receiving control unit 41 in control to empty aerial array 42 to airborne logical
Before believing that equipment 10 sends information, can first obtain the distance between itself and airborne communication device 10 for being deployed on aircraft,
The current flying speed of airborne communication device 10 is determined with flying speed to airborne communication device to which basis gets distance
Send the specific frequency of signal.
On the other hand, the control of empty transmitting-receiving control unit 41 is passed through between empty aerial array 42 and airborne communication device 10
At least one of time division duplex or frequency division duplex two ways are communicated.
The panel data subflow cut and formed by the first information is being received to each bay in empty aerial array 42
Later, these substream of data can be recombinated by empty transmitting-receiving control unit 41, restores to obtain the of airborne communication device transmission
One information.After this, core net can be transferred to by the first information received to empty transmitting-receiving control unit 41.It is appreciated that
It is that the type and the type of cellular signal used in ground space communication of core net are matched.For example, ground communication facilities 40
If the cellular signal of 4G is used to be communicated between airborne communication device 10, core net is exactly EPC (Evolved
Packet Core, 4G core net)；If between ground communication facilities 40 and airborne communication device 10 using 5G cellular signals into
Row communication, then core net is exactly 5G core nets.
When core net needs the second information being sent to a certain purpose terminal on aircraft, core net can be by second
Information is transferred to at empty transmitting-receiving control unit 41, then by empty transmitting-receiving control unit 41 by the second information space and time mapping to sky
More antennas of aerial array 42 are sent on mutiple antennas array in the airborne communication device 10 where terminal.
Ground communication facilities and beechnut provided in this embodiment, by including to sky transmitting-receiving control in ground setting
Unit processed and to empty aerial array, realizes and the communication connection between the airborne communication device in high-altitude so that in flying
Terminal inside machine can be realized and extraneous wireless communication under the support of ground communication facilities.This is relative to based on satellite
Wireless network covering scheme for, can largely reduce communications cost, mitigate burden for users.
Embodiment three：
The present embodiment will be introduced aforementioned beechnut in conjunction with specific example：Beechnut includes airborne
Communication equipment, ground communication facilities and core net parts several in this way combine Fig. 6 with ground communication facilities in the present embodiment
To be illustrated for base station group 51：
Beechnut 6 includes airborne communication device 50, the dedicated base station group 51 of 2.4GHz frequency ranges and 4G core nets
52, wherein base station group 51 includes at least two base stations being arranged around course line.In Fig. 7, base station group 51 includes
First base station 511, the second base station 512 and third base station 513, these three base stations are along on course line distribution ground.Base station
Each base station in group 51 is communicated to connect with 4G core nets 52, and realization will be transferred to 4G cores from the information received in the air
Net 52, and the information in 4G core nets 52 is transferred to the function of airborne communication device.
The antenna interacted with airborne communication device is both provided in base station group 51 on each base station, these antenna is real
Outgoing and the reception of information are showed.In view of course line institute is by region topography and geomorphology overall complicated, when ocean is passed through in course line
When with compared with Big Lakess, it is difficult to which ground base station is arranged in these regions.Even in addition, in land, also there is considerable place
It is difficult to find the cloth station scheme of low cost, such as mountain area, plateau band.So in order to solve aircraft when leaping these regions
Wireless network covering problem, only increase base station that those can build as far as possible or construction be relatively easy to covering for base station
Lid range keeps their area coverage more broader, increases the coverage area of each base station with this, reduces land boat to the greatest extent
The cost of arranging net of line covering.And in order to promote the coverage area of each base station, it in the present embodiment, can be by making on base station
Antenna gain is promoted with enhanced antenna.
On the other hand, multiple transmitting antennas and multiple reception antennas can be set simultaneously on a base station, for example, at this
In embodiment, the base station in base station group 51 is the base station of 8T8R (8 transmitting antennas, 8 reception antennas).
It is communicated since TDD mode may be used with airborne communication device in base station group 51, frequency division can also be used
Dual-mode is communicated.Therefore the base station group 51 in the present embodiment can be the base station group of TDD type, can also be
The base station group of frequency division duplex type, or even can also be mixed type, that is to say, that the existing time division duplex in base station group 51
Also there is the base station of frequency division duplex type in the base station of type.In order to avoid airborne communication device with base station group 51 when being communicated, need
Constantly switch under TDD mode and mode of frequency division duplexing, in the example given by Fig. 6, all bases in base station group 51
Station is TDD type.
The airborne communication device of deployment aboard includes WiFi AP access devices 501, airborne LTE cpe devices 502
And multiple airborne antennas 503.In order to achieve the effect that full cabin WiFi coverings in interior of aircraft, can be arranged in cabin more
A WiFi AP access devices 501, and these WiFi AP access devices 501 are evenly distributed on above the aisle of cabin.It is each
WiFi AP access devices 501 pass through the airborne LTE cpe devices 502 of engine room inside Ethernet access, airborne LTE cpe devices 502
Be it is a kind of WiFi signal can be converted into LTE signals, LTE signals are converted into the wireless terminal device of WiFi signal.In addition,
In the present embodiment, LTE cpe devices 502 can be by the information space and time mapping after format conversion to multiple airborne antennas 503
On, while also can the substream of data that multiple airborne antennas 503 receive be subjected to performing space-time decoding, recovery is obtained from core net
Original signal.It should be understood that other equipment with processing function can also be arranged to be reflected when carrying out performing space-time decoding and sky
It penetrates, is not necessarily intended to the function of performing space-time decoding and space and time mapping being integrated on airborne LTE cpe devices 502.In the present embodiment, machine
502 connection of LTE cpe devices is carried to connect with airborne antenna 503.Airborne antenna 503 can be arranged other than cabin, be convenient for ground
The base station group 51 in face sends signal and receives the signal that base station group 51 is sent.Further, airborne antenna 503 can use
Enhanced antenna, to promote antenna gain.In addition, the gain of airborne antenna 503 and the design of directionality, should fully consider boat
The atmospheric condition and geomorphic feature that may be often met in line.
The process that the terminal in cabin outwardly sends information and receives external information is introduced below：
Before sending and receiving information, terminal is first linked into WiFi AP access devices 501.If the WiFi in cabin
It opens for free, then authentication process itself need not be set, that is, without setting password, terminal can be directly accessed.But if
WiFi in cabin not opens for free, then user must may first buy corresponding set meal and be used after paying successfully
The password arrived is linked into WiFi AP access devices 501 by authentication.
When needing the outgoing first information, the first information can be sent to WiFi AP accesses by terminal by WiFi signal
The first information is transferred to airborne LTE cpe devices 502 by equipment 501, WiFi AP access devices 501 again.Airborne LTE CPE are set
The first information of WiFi signal format is converted into LTE formats by standby 502.Specifically, airborne LTE cpe devices 502 can be right
The first information of WiFi signal format is demodulated to obtain baseband signal, then by penetrating where modulates baseband signals to LTE signals
Frequent section forms the first information of LTE formats.To after the converting of the first information, airborne LTE cpe devices 502 will turn
On first information space and time mapping to multiple airborne antennas 503 after changing.Airborne antenna 503 is through each parallel number obtained by space and time mapping
The base station group 51 on ground is sent to according to subflow.Ground base station group 51 using the mutiple antennas of oneself receive these substream of data it
Afterwards, performing space-time decoding is carried out to these substream of data and obtains the first information, and the first information is transferred to 4G core nets 52, by 4G cores
Heart net 52 according to the first information further transmitted by the middle purpose IP address etc. carried.
When there is the second information from 4G core nets 52 to need to be transferred to a purpose terminal in cabin, 4G core nets
Second information is first transferred to base station group 51 by 52, and second information is cut into multiple put down by space and time mapping by base station group 51
Row substream of data, and mutiple antennas is distributed to, the communications band of 2.4GHz is then used by these antenna, by the number of LTE formats
It is sent to airborne antenna 503 according to subflow.After airborne antenna 503 receives these substream of data, airborne LTE cpe devices 502 will
These substream of data are recombinated, and obtain the second information by performing space-time decoding, and the second information of LTE signal formats is converted into
Second information of WiFi signal format, and transformed second information is sent to WiFi AP access devices 501.Specifically, machine
It is also to be demodulated to the second information of LTE formats to carry LTE cpe devices 502, obtains baseband signal, then by modulates baseband signals
Onto the corresponding frequency range of WiFi signal, the second information of WiFi signal format is formed.WiFi AP access devices 501 receive
After two information, second information can be transferred to pair according to information such as the destination IPs of the receiving terminal carried in the second information
The purpose terminal answered.
In the present embodiment, when the base station in airborne antenna 503 and base station group 51 carries out information exchange, the two it
Between specific communication frequency can be counted according to aircraft flying speed currently current with the distance between base station and aircraft
It obtains.Specifically, the base station in base station group 51 or airborne antenna 503 can use adaptive frequency track and backoff algorithm
Communication frequency is calculated, influence of the doppler shift effect to communication performance in high-speed flight is eliminated to reach.
Beechnut provided in this embodiment, airborne communication device are carried out by LTE signals and ground communication facilities
Communication, while terminaloriented provides radio communication service in the form of WiFi again.Take full advantage of ground communication facilities construction at
This is low, with roomy advantage, and the radio communication service of excellent performance and price material benefit is provided for the user in cabin, is improved
User experience.In addition, in order to reduce the cost of air communications service, the airborne communication device in the present embodiment is set with ground communication
It is standby, it is also communicated using 2.4GHz frequency ranges, avoids the cost that operator specially purchases the resource of frequency range.
Meanwhile airborne communication device can be into aircraft terminal WiFi environment is uniformly provided so that user's various types
Electric terminal can enjoy the wireless network in high-altitude, this promotes the degree of freedom that user enjoys any wireless network services, ensures
User experience.
Example IV：
Airborne communication method will be introduced in the present embodiment, since earth-space communication method includes airborne communication device to ground
Face communication equipment sends the process of signal, the transmission process of the first information.The process is introduced in conjunction with Fig. 8 separately below：
S802, airborne communication device are cut the first information to obtain at least two parallel substream of data；
Each substream of data is respectively mapped in each array element of aerial array over the ground, and controls by S804, airborne communication device
Each substream of data is transferred to ground communication facilities by each array element；
S806, ground communication facilities control to each array element of empty aerial array receive that airborne communication device sends by first
The substream of data that information is cut；
S808, ground communication facilities will be flat received by each array element according to the fading characteristic to each array element of empty aerial array
Row substream of data is reconfigured to obtain the first information；
The first information is sent to core net by S810, ground communication facilities.
The first information can come from one terminal of the medium size in cabin, it is to be understood that airborne communication device and terminal
Between can be communicated by wired mode, can also wirelessly communicate, have due to usually having multiple terminals in cabin
Communication requirement, so the terminal that airborne communication device can be into cabin in the present embodiment provides LAN environment, such as
WiFi network environment or ZigBee environment, so that the terminal in cabin is linked by LAN environment in network.Work as terminal
When needing to send information to wide area network, the first information can be generated according to the communication environment of oneself and airborne communication device,
The first information of generation meets the communication protocol between terminal and airborne communication device.After the first information is generated, terminal can be with
Airborne communication device is sent it to, the first information is sent to ground communication facilities by airborne communication device.
Due to the communication environment of airborne communication device and terminal room and it is logical with the communication environment between ground communication facilities
Chang Butong.So in the present embodiment, before the first information is sent to ground communication facilities, airborne communication device needs elder generation
The format of the first information is converted.It is airborne logical if terminal is WiFi environment with the communication environment between airborne communication device
The first information of WiFi signal format can be converted into communicating and being used between airborne communication device leads to ground communication facilities by letter equipment
Second signal format.Specifically, airborne communication device can be demodulated to obtain base to the first information of WiFi signal format
Band signal, then by the radio frequency band required by modulates baseband signals to second signal format.If the same airborne communication device of terminal
Between communication environment be ZigBee environment, then airborne communication device the first information of ZigBee signal formats can be converted into second
Signal format.Specifically, airborne communication device can be demodulated to obtain base band to the first information of ZigBee signal formats
Signal, then baseband signal is modulated.
After signal format converts, if the signal strength of earth-space communication is more than predetermined threshold value, i.e. airborne communication device
When communication environment between ground communication facilities is preferable, airborne communication device is using space multiplexing technique to sent the
After one information is handled, by being converted into multiple parallel substream of data after multiple cutting, airborne communication is set the first information
It is standby that these panel data subflows are mapped on each bay of aerial array over the ground, by these antenna array element to data
Stream is transmitted.After ground communication facilities receives the substream of data that bay is sent over the ground, according to empty aerial array
The fading characteristic of each array element reconfigures the panel data subflow received by each array element, and reduction is obtained from airborne logical
Believe the first information of equipment.Later, the first information is sent to core net by ground communication facilities.
If the signal strength of earth-space communication is less than or equal to predetermined threshold value, i.e., between airborne communication device and ground communication facilities
Communication environment it is poor when, airborne communication device when sending the first information of terminal in cabin, can to the first information into
Row replicates, and multiple first information after duplication is respectively mapped in each array element of aerial array over the ground, then allows day over the ground
Earthward communication equipment sends the identical first information to each array element of linear array.
Earth-space communication method can also include the process that airborne communication device receives ground communication facilities transmission signal, namely
The transmission process of second information, refers to Fig. 9 below：
S902, ground communication facilities are cut the second information from core net to obtain at least two parallel data
Subflow；
Each substream of data is respectively mapped in each array element to empty aerial array by S904, ground communication facilities；
Each substream of data is transferred to airborne communication to each array element of empty aerial array and set by S906, ground communication facilities control
It is standby；
S908, airborne communication device control over the ground aerial array each array element receive ground communication facilities send by second
The panel data subflow that information is cut；
S910, airborne communication device are according to the fading characteristic of each array element of aerial array over the ground by the number received by each array element
It is reconfigured to obtain the second information according to subflow.
When core net needs the second information being sent to a certain purpose terminal on aircraft, core net can be by second
Information is transferred at ground communication facilities.Ground communication facilities can assess air-ground communication environment, if current com-munication environment
Preferably, then ground communication facilities is by the second information space and time mapping to the more antennas to empty aerial array, i.e., aerial array is more
In a array element.Specifically, ground communication facilities can carry out multiple cutting to the second information, it is converted into multiple parallel data
Stream, and these panel data subflows are transferred to each bay to empty aerial array, these antenna array element synchronous transfer
It is mapped to respective panel data subflow.
When airborne communication device receives the panel data subflow of ground communication facilities transmission, according to aerial array over the ground
The fading characteristic of 12 each array elements reconfigures the panel data subflow received by each array element, and reduction obtains coming from ground
Second information of communication equipment.
If the signal strength of earth-space communication is less than or equal to predetermined threshold value, i.e., between airborne communication device and ground communication facilities
Communication environment it is poor when, in order to ensure the reception reliability of the second information of airborne communication device pair, ground communication facilities can profit
It is sent with to the second information of multiple array elements pair in empty aerial array：Ground communication facilities first answers the second information
System, and multiple second information after duplication are respectively mapped in each array element to empty aerial array, it then allows to empty antenna array
Each array element of row sends identical second information to airborne communication device.
After each array element receives identical second information in the aerial array over the ground of airborne communication device, because of communication matter
The relationship of amount, so the second information quality that each array element receives is bad, so airborne communication device is to each array element
Reception result merges, and obtains relatively better second information of quality, and be sent to terminal.
In a kind of example of the present embodiment, the second information directly can't be transferred directly to end by airborne communication device
End, but first the signal format of the second information can be converted.Transformed format depends on terminal and airborne communication device
Between communication environment.If for example, airborne communication device is communicated with terminal room by WiFi signal, airborne communication device is by second
Second information of signal format is converted into WiFi signal format；It, will if terminal is linked into airborne communication device by ZigBee
The format conversion of second information is at ZigBee.Specifically, airborne communication device is also first the second information to second signal format
It is demodulated, obtains baseband signal, then will be on modulates baseband signals to WiFi signal or the corresponding frequency range of ZigBee signals.
After terminating to the format conversion of the second information, airborne communication device can be according to the destination IP carried in the second information
The information such as address send it to corresponding terminal.
Airborne communication device can be communicated with ground communication facilities using 2.4GHz frequency ranges, 2.4GHz~2.483GHz
The signal bandwidth of 80M is capable of providing to meet the online demand of user, moreover, because 2.4GHz frequency ranges are global general-use frequency ranges,
So if airborne communication device uses 2.4GHz band communications, operator just need not specially buy with ground communication facilities
Special frequency range.In this case, the burden of operator can be reduced.Correspondingly, user enjoys wireless network aboard
When, need the expense paid that can also be reduced, so, airborne communication device is with ground communication facilities using 2.4GHz frequencies
Duan Jinhang communicates the financial burden that can also reduce revenue passenger.
Specific communication frequency between airborne communication device and ground communication facilities can be based on adaptive frequency track and
Backoff algorithm determines.In a kind of implementation example of the present embodiment, the first information is sent to ground in airborne communication device
Before the communication equipment of face, or before receiving the second information, adaptive frequency track and backoff algorithm can be first used to calculate
Then communication frequency is received and sent messages according to the frequency being calculated.Adaptive frequency track and backoff algorithm are according to airborne logical
The current movement speed of letter equipment and communication frequency is determined with the distance between ground communication facilities, can effectively overcome
Influence of the Doppler effect to communication quality.
On the other hand, it is transmitted with cellular signal between ground communication facilities.In the present embodiment, transmission the
One information or the second information can be the signals based on N-Generation mobile communication technology, relative to 3rd generation mobile communication technology
Cellular signal starts, fourth generation mobile communication technology from LTE (Long term Evolution, long term evolution), and higher than the
The mobile communication technology in four generations is capable of providing higher transmission rate, so, in the present embodiment, N is more than or equal to 4.Just at present
For, the fourth generation mobile communication technology exactly most ripe stage, so, in a kind of example of the present embodiment, described N etc.
In 4, airborne communication device is communicated by least one of TDD-LTE or FDD-LTE with ground communication facilities.
The form for not limiting airborne communication device in the present embodiment specifically, can be the equipment of an entirety, also may be used
To be made of multiple parts being physically separate from each other.Such as in a kind of specific example of the present embodiment, airborne communication
Equipment may include for access terminal WiFi AP equipment, for the airborne cpe device of conversion signal format and for receiving and dispatching
The enhanced airborne antenna of information.Wherein WiFi AP equipment may include multiple, and be evenly distributed in inside aircraft cabin,
And enhanced airborne antenna can be deployed in nacelle exterior.
Earth-space communication method provided in this embodiment can be realized straight between airborne communication device and ground communication facilities
Letter is connected, the cost of civil aviation communication is reduced, also reduces the financial burden of user.On the other hand, due to airborne communication
The signal of second signal format can be converted into WiFi signal or ZigBee signals, institute by the signal format converting unit in equipment
A variety of electronic products of user can be allowed to enjoy wireless network, it is not limited in those ends for having access to cellular network
Hold product.It ensure that user can between various terminals product free switching, the user experience is improved.
Further, the airborne communication device in the present embodiment is led to using 2.4GHz frequency ranges with ground communication facilities
Letter, reduces the cost of earth-space communication, also reduces passenger accordingly and enjoy financial burden caused by wireless network.
Obviously, those skilled in the art should be understood that each module of the embodiments of the present invention or each step can be used
General computing device realizes that they can be concentrated on a single computing device, or be distributed in multiple computing device institutes
On the network of composition, optionally, they can be realized with the program code that computing device can perform, it is thus possible to by them
It is stored in computer storage media (ROM/RAM, magnetic disc, CD) and is performed by computing device, and in some cases, it can
With the steps shown or described are performed in an order that is different from the one herein, or they are fabricated to each integrated circuit dies
Block, or by them multiple modules or step be fabricated to single integrated circuit module and realize.So the present invention does not limit
It is combined in any specific hardware and software.
It cannot recognize being further described made by the embodiment of the present invention the above content is specific embodiment is combined
The specific implementation of the fixed present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs,
Without departing from the inventive concept of the premise, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the present invention
Protection domain.
Claims (10)
1. a kind of airborne communication device, which is characterized in that including transmitting-receiving control unit over the ground and aerial array over the ground；
The transmitting-receiving control unit over the ground for will need the first information for being sent to ground communication facilities cut to obtain to
Few two parallel substream of data, and each substream of data is respectively mapped in each array element of aerial array over the ground；
Each array element of the aerial array over the ground from each substream of data of the transmitting-receiving control unit over the ground for will pass
It is defeated to arrive the ground communication facilities.
2. airborne communication device as described in claim 1, which is characterized in that the transmitting-receiving control unit over the ground is used for air-ground
The signal strength of communication be more than predetermined threshold value when, by cabin the first information of at least one terminal cut
The substream of data parallel at least two, and each substream of data is respectively mapped to each array element of the aerial array over the ground
On；The transmitting-receiving control unit over the ground be additionally operable to earth-space communication signal strength be more than predetermined threshold value when, according to it is described over the ground
The fading characteristic of each array element of aerial array reconfigures the panel data subflow received by each array element, restores
It is sent to corresponding terminal in cabin to the second information from ground communication facilities, and by second information；
Each array element of the aerial array over the ground is additionally operable to receive being cut by the second information for the ground communication facilities transmission
The substream of data arrived, and the substream of data received is transferred to the transmitting-receiving control unit over the ground.
3. airborne communication device as claimed in claim 2, which is characterized in that further include Wireless Access Unit；It is described wirelessly to connect
Enter unit for wirelessly accessing at least one terminal in cabin, the first information from the terminal is sent to institute
Transmitting-receiving control unit over the ground is stated, and the second information from the transmitting-receiving control unit over the ground is sent to corresponding in cabin
Terminal.
4. airborne communication device as claimed in claim 3, which is characterized in that further include signal format converting unit, the letter
Number format conversion unit is used to turn the format from the first information of the Wireless Access Unit by the first signal format
It changes second signal format into, and the transformed first information is transferred to the transmitting-receiving control unit over the ground；And in the future
From the format of second information of the transmitting-receiving control unit over the ground by second signal format conversion at the first signal format, and
Transformed second information is transferred to the Wireless Access Unit；First signal format is used by engine room inside
Communication format, the second signal format communicated between the airborne communication device and ground communication facilities used in it is logical
Believe that format, first signal format are different from the second signal format.
5. airborne communication device as claimed in claim 4, which is characterized in that the Wireless Access Unit accesses for Wireless Fidelity
Unit, the signal format converting unit is for being converted into second signal format by the first information of Wireless Fidelity format and transmitting
To the Transmit-Receive Unit over the ground, and the second information that format is second signal format is converted into Wireless Fidelity signal and is sent
To the Wireless Fidelity access unit, the second signal format is the communication format based on N-Generation mobile communication technology, described
N is more than or equal to 4.
6. such as claim 2-5 any one of them airborne communication devices, which is characterized in that the transmitting-receiving control unit over the ground is also
When being less than or equal to predetermined threshold value for the signal strength in earth-space communication, the first information replicate and is mapped to over the ground in the future
In each array element of aerial array；And the reception result of each array element of aerial array over the ground is restored to obtain and comes from ground
Second information of communication equipment.
7. a kind of earth-space communication method, including to earth signal transmission process；It is described to include to earth signal transmission process：
Airborne communication device will need the first information for being sent to ground to be cut to obtain at least two parallel substream of data；
Each substream of data is respectively mapped in each array element of aerial array over the ground by the airborne communication device, and is controlled each
Each substream of data is transferred to ground communication facilities by the array element.
8. earth-space communication method as claimed in claim 7, which is characterized in that described to need the first information for being sent to ground
Further include before being cut to obtain at least two parallel substream of data：
The airborne communication device receives at least one in cabin when the signal strength of earth-space communication is more than predetermined threshold value
The first information of terminal；
The earth-space communication method further includes to earth signal receive process：
The airborne communication device is when the signal strength of earth-space communication is more than predetermined threshold value, aerial array over the ground described in control
Each array element receives the panel data subflow cut by the second information that the ground communication facilities is sent；
The airborne communication device will be received by each array element according to the fading characteristic of each array element of aerial array over the ground
Substream of data reconfigured, reduction obtain the second information from ground communication facilities；
Second information is sent to corresponding terminal in cabin by the airborne communication device.
9. earth-space communication method as claimed in claim 8, which is characterized in that the airborne communication device is by the first information
Further include before being cut to obtain at least two parallel substream of data：
The format of the first information from cabin terminal is converted by the airborne communication device by the first signal format
Binary signal format；
Second information is sent in cabin before corresponding terminal by the airborne communication device：
The format for second information that the airborne communication device obtains reduction is by second signal format conversion at the first letter
Number format；
First signal format is communication format used in engine room inside, and the second signal format is the airborne communication
Communication format used in being communicated between equipment and ground communication facilities, first signal format and the second signal format
It is different.
10. earth-space communication method as claimed in claim 8 or 9, which is characterized in that described also to be wrapped to earth signal transmission process
It includes：
The airborne communication device carries out the first information when the signal strength of earth-space communication is less than or equal to predetermined threshold value
It replicates；
The airborne communication device is mapped to obtained each first information is replicated in each array element of aerial array over the ground, and is controlled
Each first information is transferred to ground communication facilities by each array element；
It is described to further include to earth signal receive process：
The airborne communication device is when the signal strength of earth-space communication is less than or equal to predetermined threshold value, antenna array over the ground described in control
Each array element of row receives the second information that the ground communication facilities is sent；
The airborne communication device is restored to obtain logical from ground to the reception result of each array element of aerial array over the ground
Believe the second information of equipment.
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| CN111884897A (en) * | 2020-07-29 | 2020-11-03 | 中国商用飞机有限责任公司 | Airborne equipment and method and system for wireless interconnection between airborne equipment |
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