CN104639642B - Space Internet Information Service system and method - Google Patents
Space Internet Information Service system and method Download PDFInfo
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- CN104639642B CN104639642B CN201510073028.2A CN201510073028A CN104639642B CN 104639642 B CN104639642 B CN 104639642B CN 201510073028 A CN201510073028 A CN 201510073028A CN 104639642 B CN104639642 B CN 104639642B
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Abstract
A kind of space Internet Information Service method, includes the following steps：A kind of space Internet Information Service system is provided, the space Internet Information Service system includes multiple telecommunication satellite, a ground data center and multiple terrestrial user terminals with mobile communication load, and the terrestrial user terminals include at least one ground location fixed data terminals, at least one communication terminal and at least one broadcast terminal；The mobile communication load using default setting distribution wireless channel and uses wireless channel in the space Internet Information Service system boot or after resetting；The mobile communication load acquires the useful information for optimizing radio channel allocation and using；The mobile communication load distributes channel according to the useful information of acquisition, obtains channel distribution result；And the mobile communication load uses channel according to the channel distribution result.
Description
Technical field
The present invention relates to a kind of information service system and method, especially a kind of space internet letter based on space-time datum
Cease service system and method.
Background technology
MEO/LEO Satellite Constellation is more than ten grapefruit satellites run to tens low orbits, point several tracks, per rail
Several of road satellite, in several orbital planes around earth rotation, and two neighboring orbital plane has equal distance on longitude.
As Mobile Communication Relay Station, this cans be compared to land cellular mobile communications system to be mounted on defends LEO mobile satellite communication system
On star, radio honeycomb covering is formed to ground, entire earth surface is all covered in interior, it is possible to provide phone, data and multimedia
Etc. business.With the rapid development of mobile Internet, the core application of LEO mobile satellite communication system to internet transition,
Therefore LEO mobile satellite communication system is also referred to as space internet.
In mobile communications, multiple users are using the same communication money of the technical method access Channel Sharing defined in advance
Source, this technology are referred to as multiple access technology, also referred to as access technology.Common multiple access technology include time division multiple acess, frequency division multiple access and
CDMA.In Modern Communication System, usually these types of multiple access technology is used in mixed way, i.e., first uses the mode of frequency division multiple access will
Available frequency resources are assigned as multiple channels, and then in the same channel, multiple terminals use time division multiple acess and code point more again
Location is accessed.In terms of communication construction, it is most widely used that the star shaped communication framework at center, i.e., multiple mobile communication terminals are always
It is communicated with Centroid, this central communications node is referred to as base station, and communication link is divided into uplink and downlink.Uplink
Link is the communication link of mobile communication terminal to base station, and downlink is communication link of the base station to mobile communication terminal.Nothing
By which type of multiple access technology used, Channel Assignment Problems will be solved, to ensure：（1）Multiple terminals are all in proper time point
Base station is sent data to, to adequately utilize uplink, and mutual Communication Jamming is preferably minimized or even is thoroughly disappeared
It removes；（2）Data are adequately sent or are broadcast to terminal using downlink.
In LEO mobile satellite communication system, satellite is the equal of a base station being put on track, covers model
It encloses greatly, and coverage area can rapidly be moved with satellite motion.Such as positioned at 800 kilometers of tracks low orbit mobile communication/
Internet satellite, coverage area are 2400 kilometers, and the speed of service is 7.5 kilometers per second, close to the first universal speed.This
In the case of, how to consider various factors optimization channel resource allocation and use, just becomes one and be both different from traditionally face
Mobile communication, and the critical issue of satellite radio resource utilization is not influenced.
In addition, in the communication system of time division multiple acess, the available communication time is usually divided into multiple time slots by people, each
Time slot is exactly a channel.In the communication system of frequency division multiple access, available frequency is divided into more parts by people, is exactly one per portion
A channel.In the system of CDMA, people distinguish different users by different spreading codes, each spreading code is just
It is a channel.In systems in practice, usual frequency division, code divide and the time-division is applied in combination in different ways, channel money
Source has been reformed by " three-dimensional " of different shapes in the three dimensions representated by time, frequency and spreading code.Appropriate
It is a basic problem in mobile communication to use and distribute wireless channel.
Basic space mobile communication system is whole by the especially low rail telecommunication satellite of multiple telecommunication satellites and terrestrial user
Hold the communication network constituted.In order to support broadcasting service, it is also necessary to a ground data be centrally generated broadcast service data and on
Satellite is passed to, allows satellite broadcasting to user.
Include in place of this space mobile communication system and the main difference of land mobile communication system：
（1）Mobile communication base station is different from the movement relation of user.In the mobile communication system of space, user and satellite it
Between spatial relationship be constantly in quickly variation among, compared to the movement velocity and scale of satellite, it is believed that Yong Hushi
Substantially motionless, and the mobile communication load entrained by satellite in the sky（That is satellite mobile communication base station）Quickly moving, this
It is just the opposite with the situation of land mobile communication.
（2）Distribution from user in terms of the angle of base station is different.In land mobile communication system, user distribution is in base station
It is even sheet of.In the mobile communication system of space, in the ground region of covering, user is often dilute for the communication service of satellite
Dredge distribution；And the user of one way traffic appears to be sub-clustering such as Broadcast Terrestrial user in telecommunication satellite.Therefore, the shifting of satellite
Dynamic communication payload is multi-beam, to adapt to the needs of this sparse and sub-clustering.In terms of purposes angle, the wave beam can be divided into extensively
Wave beam and communication beams are broadcast, a satellite can be formed simultaneously multiple wave beams, and the coverage area of each wave beam is also different.Communication
Wave beam is spot beam, is stared user；Broadcast beam is surface wave beam, carries out periodic scan according to certain rule, each time
Specific region under scanning covering star.
The business that space internet is supported includes two-way services such as voice-and-data and one way traffic as broadcasted.However,
The ability of satellite is limited, and how under minimum human intervention, the business demand changed when according to operation is dynamically distributed and made
With wireless channel, on-demand service is carried out to user using satellite limited ability, realizes maximum value of services, this, which is industry, needs
The key problem to be solved.
Invention content
In view of this, it is necessory to provide a kind of sky that can carry out on-demand service to user using satellite limited ability
Between Internet Information Service system and method.
A kind of space Internet Information Service method, includes the following steps：
A kind of space Internet Information Service system is provided, which includes multiple with shifting
Telecommunication satellite, a ground data center and the multiple terrestrial user terminals of dynamic communication payload, the terrestrial user terminals include extremely
Few ground location fixed data terminals, at least one communication terminal and at least one broadcast terminal；
The mobile communication load is set in the space Internet Information Service system boot or after resetting using default
It sets distribution wireless channel and uses wireless channel；
The mobile communication load acquires the useful information for optimizing radio channel allocation and using；
The mobile communication load distributes channel according to the useful information of acquisition, obtains channel distribution as a result, the movement
Communication payload includes the following steps according to the method that the useful information of acquisition distributes channel：The telecommunication satellite has battery electricity
Amount, the channel type allowed according to the setting of the battery capacity of the telecommunication satellite；According to the channel type of the permission and the electricity
Useful information other than the electricity of pond distributes channel；And
The mobile communication load uses channel according to the channel distribution result.
A kind of space Internet Information Service system, including multiple telecommunication satellites with mobile communication load, a ground
Data center and multiple terrestrial user terminals, the telecommunication satellite is with ground data center, terrestrial user terminals by wireless
Link connection, the mobile communication load is by a channel-assignment unit, a channel use and communication modulation unit, a communications baseband
Demodulating unit, a radio beam Transmit-Receive Unit and storage unit composition；The input of the channel-assignment unit is single with storage
Member connection, output are connect with channel use with communication modulation unit；The channel uses input and letter with communication modulation unit
Road allocation unit is connected with storage unit, and output is connect with radio beam Transmit-Receive Unit；The communications baseband demodulating unit
Input is connect with radio beam Transmit-Receive Unit, and output is connect with storage unit.
Compared with prior art, the present invention provides a kind of space Internet Information Service system and method, when making full use of
Space base is accurate, and Evolution States when being run according to telecommunication satellite and user dynamically distribute and use limited channel resource, clever
The radio beam of the mobile communication load of the telecommunication satellite ingeniously is controlled, realizes on-demand service.
Description of the drawings
Fig. 1 is the space Internet Information Service system schematic provided by the invention based on space-time datum.
Fig. 2 is the mobile communication load schematic of telecommunication satellite provided by the invention.
Fig. 3 is the space Internet Information Service method flow diagram provided by the invention based on space-time datum.
Fig. 4 is the wireless channel schematic diagram provided by the invention distributed according to default setting.
Fig. 5 is the schematic diagram for the channel type method that battery capacity setting provided by the invention allows.
The method that Fig. 6 is the channel type of permission provided by the invention and the useful information distribution channel other than battery capacity
Flow chart.
Main element symbol description
| Space Internet Information Service system | 10 |
| Telecommunication satellite | 12 |
| Ground data center | 14 |
| Terrestrial user terminals | 16 |
| Ground location fixed data terminals | 160 |
| General communication terminal | 162 |
| Broadcast terminal | 164 |
| Spot beam | 170 |
| Surface wave beam | 172 |
| Overlay area | 174 |
| Mobile communication load | 180 |
| Channel-assignment unit | 182 |
| Channel use and communication modulation unit | 184 |
| Communications baseband demodulating unit | 186 |
| Radio beam Transmit-Receive Unit | 188 |
| Storage unit | 190 |
Following specific implementation mode will be further illustrated the present invention in conjunction with above-mentioned attached drawing.
Specific implementation mode
The space internet information based on space-time datum to provided by the invention below in conjunction with the accompanying drawings and the specific embodiments
Service system and method are described in further detail.
Fig. 1 is referred to, the present invention provides a kind of space Internet Information Service system 10 based on space-time datum, including more
12, ground data centers 14 of a telecommunication satellite and multiple terrestrial user terminals 16, the terrestrial user terminals 16 include extremely
Few ground location fixed data terminals 160, at least one general communication terminal 162 and at least one broadcast terminal 164.Institute
The connection relation for stating telecommunication satellite 12, ground data center 14 and terrestrial user terminals 16 is：With mobile communication load 180
Telecommunication satellite 12 is connect with terrestrial user terminals 16 by Radio Link, with mobile communication load 180 telecommunication satellite 12 with
Ground data center 14 is connected by Radio Link.The Radio Link can be feeding link, can also be other links.Institute
Stating the function at ground data center 14 is：Broadcast service data is generated, and the broadcast service data is uploaded to telecommunication satellite 12
Mobile communication load 180.The function of the telecommunication satellite 12 is：The mobile communication load 180 of telecommunication satellite 12 booting or
Person reset after using default setting distribute and use wireless channel, later constantly acquisition can be used in optimize radio channel allocation and
The useful information used, and channel is distributed and used according to the useful information of acquisition.The ground location fixed data terminals 160
Realize that two-way communication, ground location fixed data terminals 160 are defended to communication with telecommunication satellite 12 respectively with general communication terminal 162
Star 12 sends communication channel and reserves information, and broadcast terminal 164 receives telecommunication satellite 12 and broadcasts.
The telecommunication satellite 12 is preferably low-earth-orbit satellite 12, and the telecommunication satellite 12 has mobile communication load
180.The ground data center 14 is located at ground gateway station, can also be located at ground control station.The shifting of the telecommunication satellite 12
Dynamic communication payload 180 has multiple radio channel resources, which includes communication traffic channel, broadcasting service channel
Channel is accessed with downlink.
The mobile communication load 180 of the telecommunication satellite 12 can emit multiple Antenna Beams, multiple Antenna Beam packet
Multiple spot beams 170 and multiple surface wave beams 172 are included, different regions can be covered.Specifically, 170 coverings of spot beam are single
User, the 170 corresponding channel of spot beam are communication traffic channel；Surface wave beam 172 covers multiple users, and the surface wave beam 172 is right
The channel answered is that broadcasting service channel and downlink access channel.By taking Fig. 1 as an example, the telecommunication satellite 12 forms 5 wave beams, packet
Include 4 spot beams 170 and 1 surface wave beam 172.There are one general communication terminals in the overlay area 174 of the spot beam 170
162, that is, there is 1 user.There are 4 broadcast terminals 164 in the overlay area 174 of the surface wave beam 172, that is, there are 4 users.It is described
Telecommunication satellite 12 and terrestrial user terminals 16, communication terminal 162 passes through satellite radio link connection, the telecommunication satellite as
12 with ground data center 14 also by satellite radio link connection.
The broadcasting service channel and downlink access channel are all down channels.The service object of broadcasting service channel is one
As broadcasting service reception user, for general broadcast receive user distribute general broadcast business datum.Downlink accesses channel
Service object is potential ground communication user, the potential ground communication user to satellite communication, connect first in downlink
The orbit information and communication time slot information for entering to obtain satellite in the radio beam of channel, could attempt in access communications channel
Uplink communication channel realize establish with the initial link of satellite, then resettle two-way communication.The downlink accesses channel
The content of a kind of broadcast channel, broadcast includes the distribution information of communication traffic channel, the orbit information of satellite and temporal information etc..
Refer to Fig. 2, the mobile communication load 180 of the telecommunication satellite 12 by channel-assignment unit 182, channel use with
Communication modulation unit 184, communications baseband demodulating unit 186, radio beam Transmit-Receive Unit 188 and storage unit 190 form.Institute
The input for stating channel-assignment unit 182 is connect with storage unit 190, the output of channel-assignment unit 182 and channel use with lead to
Believe that modulation unit 184 connects.The channel uses input and channel-assignment unit 182 and storage with communication modulation unit 184
Unit 190 connects, and channel is used and connect with the output of communication modulation unit 184 with radio beam Transmit-Receive Unit 188.It is described logical
The input of letter base band demodulating unit 186 is connect with radio beam Transmit-Receive Unit 188, the output of communications baseband demodulating unit 186
It is connect with storage unit 190.
The course of work of the mobile communication load 180 of the telecommunication satellite 12 is：Channel-assignment unit 182 is according to acquisition
Useful information distributes channel, obtains channel distribution as a result, channel distribution result is output to channel use and communication modulation unit
184；Channel is used uses channel with communication modulation unit 184 according to the channel distribution result, will come from storage unit 190
Data to be sent be modulated to the waveform that radio beam Transmit-Receive Unit 188 can use, notice radio beam is according to channel
Application method controls the orientation of radio beam；Radio beam Transmit-Receive Unit 188 realizes transmitting-receiving and the wave beam of radio beam
Orientation；The input of communications baseband demodulating unit 186 is connect with radio beam Transmit-Receive Unit 188, completes data demodulation, and will connect
The broadcast service data unit of receipts is stored to storage unit 190.
The space Internet Information Service system 10 based on space-time datum described in that the present invention further provides a kind of
Space Internet Information Service method, i.e., the described ground data center 14, telecommunication satellite 12 and terrestrial user terminals 16 are common real
It now should the space Internet Information Service method based on space-time datum.Refer to Fig. 3, the space interconnection based on space-time datum
Net information service method includes the following steps：
The mobile communication load 180 of S1, telecommunication satellite 12 distribute wireless communication after booting or reset using default setting
Road and use wireless channel；
S2, the acquisition of mobile communication load 180 of telecommunication satellite 12 can be used in optimizing radio channel allocation and what is used have
Use information；
The mobile communication load 180 of S3, telecommunication satellite 12 distribute channel according to the useful information of acquisition, obtain channel distribution
As a result；And
The mobile communication load 180 of S4, telecommunication satellite 12 use channel according to the channel distribution result.
In step S1, the mobile communication load 180 of telecommunication satellite 12 using default setting distribution wireless channel and uses nothing
The specific method of line channel is：Fig. 4 is referred to, countershaft is divided into multiple continuous superframes on time by wireless channel, each is super
Frame includes M downlink access channel, N number of broadcasting service channel and K communication channel, and the M downlink access channel is right respectively
M different overlay areas 174 for answering satellite radio wave beam, are accessed in downlink channel, this M of satellite radio wave beam uniform scanning
A different overlay area 174, specific scan method can be the scanning of satellite fixed beam, can also be that wave beam is stared on ground
Scanning, for user, the two is not different；At the beginning of booting, N number of broadcasting service channel and K communication channel are in sky
Not busy state.It is described that the method for channel allocation of wireless channel cutting divides time division multiple acess, frequency division multiple access and code according to time shaft
The system of multiple access is all suitable for.
In step S2, the useful information that can be used in optimizing radio channel allocation and use includes but not limited to：
（1）The location of current time and satellite, this is basic space-time datum.
（2）The battery capacity of satellite.For telecommunication satellite 12, mobile communication load 180 is often the largest electric energy
Consumable load, mobile communication load 180 need to consider that the feature of battery, appropriate use are conducive to extend battery in electricity consumption
Service life.
（3）Ground location when the communication user last time communicates with mobile communication load 180.These information are used for estimating to defend
Most possibly there is new communication user access in which Antenna Beam overlay area 174 of star.
（4）Ground data center 14 is uploaded to the broadcast service data unit of satellite, this is data to be broadcast.It is described wide
Multicast business data unit includes but not limited to data unique mark, data header, data content, data geographic area to be broadcast
With data effective time.The data effective time refers to from starting to broadcast the data to the end broadcast data, broadcasting service
This corresponding period of data cell.
（5）The communication channel of ground location fixed data terminals 160 reserves information.The communication channel reserves information
User location, initiation of communication moment, communication time, communication channel identifier, the access elevation angle.
In step S3, there are many ways to the mobile communication load 180 distributes channel according to the useful information of acquisition,
A kind of middle basic method is that mobile communication load 180 is carried out according to the significance level difference of useful information described in step 2
Distribution.Wherein, battery capacity is most important information.According to different battery capacities, it is fair that can be used for which channel divided
Perhaps, which channel does not allow.The method for channel allocation for paying the utmost attention to battery capacity progress, includes the following steps：
S311, the channel type allowed according to battery capacity setting；
S312 distributes channel according to the useful information other than the channel type and battery capacity of the permission.
Fig. 5 is referred to, the basic skills of the channel type allowed according to battery capacity setting is threshold method.
Specifically, thresholding 1, thresholding 2, thresholding 3 are set, and assumes thresholding 1<Thresholding 2<Thresholding 3；When battery capacity is less than door
When limiting 1, any channel is not distributed, and closes all radio-frequency channels；
When battery capacity is more than or equal to thresholding 1 and is less than thresholding 2, allows downlink to access channel and be no more than acquiescence
The communication channel of quantity, and close all broadcasting service channels；
When battery capacity is more than or equal to thresholding 2 and is less than thresholding 3, allows downlink to access channel, is at most more than to give tacit consent to number
The communication channel of amount, the broadcasting service channel for being no more than default amount；
When battery capacity is more than or equal to thresholding 3, communication channel, downlink is allowed to access channel and wide more than default amount
Broadcast Traffic Channel.
The occurrence of the thresholding 1, thresholding 2 and thresholding 3 is a design parameter, with number of batteries, battery capacity and logical
Believe that the power characteristic of load is related.
Fig. 6 is referred to, the side of channel is distributed according to the useful information other than the channel type and battery capacity of the permission
Method includes the following steps：
S321 accesses admission control algorithm according to calling, it is determined whether receives and increases communication user newly, and is logical for what is newly received
Credit household's allocation of communication channels；
S322, the communication channel that user is fixed according to ground location reserve information, and it is logical to fix user's distribution for ground location
Believe channel；
S323, allocation of downlink access channel, and the quantity which accesses channel is quantity and the downlink access of available channel
Smaller one in the quantity of channel；And
S324 distributes broadcasting service channel, the broadcasting service channel number if the broadcasting service channel number allowed is not zero
Amount is one smaller in the quantity of remaining available channel and the quantity of the broadcasting service channel of permission.
In step S321, during the calling access admission control algorithm has very much, it can be selected according to actual conditions.
The present embodiment considers the demand of battery capacity and dynamic channel allocation, discloses a kind of calling access receiving control
Algorithm processed, calling access admission control algorithm are specially：
When battery capacity is more than or equal to the thresholding 1 and is less than thresholding 2, and newly-increased communication user be added after total communication channel
When number is less than or equal to the K communication channel, then receives and Add User；Total communication channel number is small after newly-increased communication user is added
When equal to K+M+N communication channel, receiving Adds User；Otherwise newly-increased communication user is not received.
For the user newly received, need for its allocation of communication channels.For the communication user allocation of communication channels newly received
Specific method be：Whenever a newly-increased communication user, when needing to distribute new communication channel, idle channel is used first, it is empty
Broadcasting service channel is seized when idle channel is not enough, downlink access channel is seized when broadcasting service channel is not enough, until all
Channel all become communication channel.In this method for channel allocation, the priority of communication service is highest, it can be occupied extensively
Traffic Channel and downlink access channel are broadcast, after all channels all become communication channel, new user can not just access,
It is left unless there are communication user.
In step S4, the mobile communication load 180 is made according to the channel distribution result using the channel channel
The adjustment of the direction adjustment and overlay area 174 of the wave beam of 180 smart antenna of mobile communication load is related generally to method.
The mobile communication load 180 is using the method for channel according to the channel distribution result：
（1）In the communication channel distributed, mobile communication load 180 controls radio beam by smart antenna and realizes
To staring to complete to communicate for user.
（2）In the downlink access channel distributed, mobile communication load 180 adjusts downlink according to the distribution of terrestrial user
Access the weight of the beam coverage area 174 of channel.It is accessed in channel time in downlink, mobile communication load 180 is according to described
Priority weights scan the big overlay area 174 of weight, and carry the reserved information of communication channel that user is fixed according to ground location,
User is fixed for ground location and distributes uplink communication channel information, also includes that the communication of other communication users has been received to believe certainly
Road distributes information.
According to a specific method of the weight of the distribution adjustment downlink access channel rays overlay area 174 of terrestrial user
For：Ground location when being communicated with mobile communication load 180 according to the communication user last time in one period of past counts mesh
Mark the communication user number of downlink access channel target overlay area 174, the i.e. weight of current goal overlay area 174.It is this
The method for calculating weight thinks that the region future accessing user in the phase of history time in the past more than accessing user is also more.Scan weight
The method of big overlay area 174 is that alignment target region progress wave beam is stared.In the case of satellite high-speed motion, satellite is real
It is to use spaceborne smart antenna now to carry out the method stared of wave beam to a certain region in ground, every a very short time, one
As for 1ms or 10ms adjust a beam direction.Within the 10ms times, 7.5 meters or so of satellite motion, terrestrial beam 172
Also it having travelled forward 7.5 meters, has been adjusted by beam direction, terrestrial beam 172 is adjusted again to negative direction and moves 7.5 meters, to
From the user's point of view, satellite beams stare oneself.
（3）In the broadcasting service channel distributed, broadcast service data unit to be broadcast is mapped to broadcasting service
Channel, the geographic area center that broadcast service data unit is stared using surface wave beam 172 are broadcasted.
Space Internet Information Service system and method provided by the invention has the following advantages that：The first, the space is mutual
Networked information method of servicing makes full use of space-time datum, and Evolution States when being run according to telecommunication satellite and user dynamically divide
Match and use limited channel resource, deftly control the radio beam of the mobile communication load of the telecommunication satellite, realizes
On-demand service；The second, it by the method for the dynamic channel allocation of space internet, realizes the collaboration of communication broadcast business and melts
It closes.
In addition, those skilled in the art can also do other variations in spirit of that invention, certainly, these are smart according to the present invention
The variation that god is done all should include within scope of the present invention.
Claims (7)
1. a kind of space Internet Information Service method, includes the following steps：
A kind of space Internet Information Service system is provided, which includes multiple with mobile logical
Believe that telecommunication satellite, a ground data center and the multiple terrestrial user terminals of load, the terrestrial user terminals include at least one
A ground location fixed data terminals, at least one communication terminal and at least one broadcast terminal；
The mobile communication load is divided in the space Internet Information Service system boot or after resetting using default setting
With wireless channel and wireless channel is used, it is described to distribute wireless channel using default setting and be using the method for wireless channel：
By wireless channel, countershaft is divided into multiple continuous superframes on time, each superframe includes multiple downlink access channels, Duo Geguang
Traffic Channel and multiple communication channels are broadcast, the mobile communication load emits multiple Antenna Beams, multiple Antenna Beam covering
Different regions, the multiple downlink access channel correspond to the region that the Antenna Beam is covered, access and believe in downlink respectively
In road, the region that Antenna Beam scanning Antenna Beam is covered, and the multiple broadcasting service channel and more in booting
A communication channel is in idle state；
The mobile communication load acquires the useful information for optimizing radio channel allocation and using；The mobile communication load
Channel is distributed according to the useful information of acquisition, obtains channel distribution as a result, the mobile communication load is according to the useful letter of acquisition
The method of breath distribution channel includes the following steps：
The telecommunication satellite has a battery capacity, according to the channel type that the setting of the battery capacity of the telecommunication satellite allows, institute
State according to the battery capacity of telecommunication satellite set allow channel type method as：Set thresholding 1, thresholding 2, thresholding 3, and door
Limit 1<Thresholding 2<Thresholding 3；When battery capacity is less than thresholding 1, any channel is not distributed；When battery capacity is more than or equal to thresholding 1
And when less than thresholding 2, allow the communication channel of downlink access channel and no more than default amount, and close it is all extensively
Broadcast Traffic Channel；When battery capacity is more than or equal to thresholding 2 and is less than thresholding 3, allows downlink to access channel, is at most more than to give tacit consent to
The communication channel of quantity, the broadcasting service channel for being no more than default amount；When battery capacity is more than or equal to thresholding 3, permit
Perhaps communication channel, downlink access channel and the broadcasting service channel more than default amount；
According to the useful information other than the channel type of the permission and the battery capacity distribute channel, it is described according to permission
The method of useful information distribution channel other than channel type and battery capacity, includes the following steps：
Admission control algorithm is accessed according to a calling, it is determined whether is received and is increased communication user newly, and the communication user newly to receive
Allocation of communication channels；
The communication channel that user is fixed according to ground location reserves information, and user's allocation of communication channels is fixed for ground location；
Allocation of downlink accesses channel, and the quantity which accesses channel is the quantity of the quantity and downlink access channel of available channel
In it is one smaller；And
If the broadcasting service channel number allowed is not zero, broadcasting service channel is distributed, which is residue
Smaller one in the quantity of available channel and the quantity of the broadcasting service channel of permission；And
The mobile communication load uses channel according to the channel distribution result.
2. Internet Information Service method in space as described in claim 1, which is characterized in that described for optimizing wireless channel
The useful information for distributing and using includes：The battery of the location of current time and the telecommunication satellite, the telecommunication satellite
Ground location, ground data center when electricity, communication user last time communicate with the mobile communication load are uploaded to described
The communication channel of the broadcast service data unit of telecommunication satellite and the ground location fixed data terminals reserves information.
3. Internet Information Service method in space as described in claim 1, which is characterized in that the calling accesses admission control
Algorithm is：After battery capacity is more than or equal to the thresholding 1 and is less than thresholding 2, and newly-increased communication user is added, total communication channel
When number is less than or equal to the communication channel number, then receives and increase communication user newly；Otherwise newly-increased communication user is not received.
4. Internet Information Service method in space as claimed in claim 3, which is characterized in that for the newly-increased communication user received
The method of allocation of communication channels is：A communication user is often increased newly, when needing to distribute new communication channel, first using idle letter
Road, seizes broadcasting service channel when idle channel is not enough, downlink access channel is seized when broadcasting service channel is not enough, until
All channels all become communication channel.
5. Internet Information Service method in space as claimed in claim 4, which is characterized in that the mobile communication load according to
The channel distribution result is using the method for channel：In the communication channel distributed, the mobile communication load passes through one
Smart antenna controls the radio beam and realizes staring to complete to communicate to user；Channel is accessed in the downlink distributed
In, the mobile communication load accesses the weight of the beam coverage area of channel, institute according to the distribution adjustment downlink of terrestrial user
Mobile communication load is stated according to the big overlay area of priority weights scanning weight, and carries and fixes the logical of user according to ground location
Believe that channel reservation information is that ground location fixes user's distribution uplink communication channel information；In the broadcasting service channel distributed
In, broadcast service data unit to be broadcast is mapped to broadcasting service channel, broadcast service data list is stared using surface wave beam
It is broadcasted at the geographic area center of member.
6. Internet Information Service method in space as described in claim 1, which is characterized in that the movement of the telecommunication satellite is logical
Believe load by a channel-assignment unit, a channel use and communication modulation unit, a communications baseband demodulating unit, a radio wave
Beam Transmit-Receive Unit and storage unit composition；The input of the channel-assignment unit is connect with storage unit, and output makes with channel
It is connect with communication modulation unit；The channel uses input and channel-assignment unit and storage unit with communication modulation unit
Connection, output are connect with radio beam Transmit-Receive Unit；The input of the communications baseband demodulating unit is received and dispatched with radio beam
Unit connects, and output is connect with storage unit.
7. a kind of space using the space Internet Information Service method described in any one of claim 1 to claim 6
Internet Information Service system, including multiple telecommunication satellites with mobile communication load, a ground data center and multiple
Face user terminal, the telecommunication satellite are connect by Radio Link with ground data center, terrestrial user terminals, and feature exists
In the mobile communication load is demodulated single by a channel-assignment unit, a channel use and communication modulation unit, a communications baseband
Member, a radio beam Transmit-Receive Unit and storage unit composition；The input of the channel-assignment unit is connect with storage unit,
Output is connect with channel use with communication modulation unit；The channel uses input and channel distribution list with communication modulation unit
Member is connected with storage unit, and output is connect with radio beam Transmit-Receive Unit；The input of the communications baseband demodulating unit and nothing
Line electric wave beam Transmit-Receive Unit connects, and output is connect with storage unit；The mobile communication load is used in the space internet
Information service system distributes wireless channel using default setting after being switched on or resetting and uses wireless channel, and wireless channel is pressed
Time shaft division includes multiple continuous superframes, each superframe includes multiple downlink access channels, multiple broadcasting service channels
With multiple communication channels, for emitting multiple Antenna Beams, multiple Antenna Beam covers different the mobile communication load
Region, the multiple downlink access channel correspond to the region that the Antenna Beam is covered, are accessed in channel in downlink, institute respectively
State the region that Antenna Beam scanning Antenna Beam is covered, and the multiple broadcasting service channel and multiple communications letter in booting
Road is in idle state.
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| WO2020077362A1 (en) * | 2018-10-12 | 2020-04-16 | Hughes Network Systems, Llc | Systems and methods for high-altitude radio/optical hybrid platform |
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| FR3064856B1 (en) * | 2017-04-04 | 2020-03-20 | Thales | SPATIAL COMMUNICATION METHOD FOR IOT SERVICES AND CORRESPONDING SPATIAL TELECOMMUNICATION SYSTEMS |
| CN110933649B (en) * | 2019-11-15 | 2021-05-11 | 深圳职业技术学院 | Data sending method in narrow-band Internet of things |
| CN112305970A (en) * | 2020-03-12 | 2021-02-02 | 沈寿娟 | Internet of things intelligent linkage control method and Internet of things intelligent linkage control center |
| CN111611070B (en) * | 2020-04-10 | 2023-05-09 | 北京电子工程总体研究所 | Dynamic interconnection resource configuration method, system, equipment and storage medium |
| CN114362802B (en) * | 2020-10-12 | 2023-04-18 | 大唐移动通信设备有限公司 | Signal transmission method, device, equipment and readable storage medium |
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