CN104796187B - Enhancing transmission method based on the quasi-static satellite base station of stratosphere - Google Patents
Enhancing transmission method based on the quasi-static satellite base station of stratosphere Download PDFInfo
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- CN104796187B CN104796187B CN201410022433.7A CN201410022433A CN104796187B CN 104796187 B CN104796187 B CN 104796187B CN 201410022433 A CN201410022433 A CN 201410022433A CN 104796187 B CN104796187 B CN 104796187B
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Abstract
The present invention relates to the coverage enhancement technologies of satellite communication field, disclose a kind of information transferring method based on the quasi-static satellite base station of stratosphere, including：(1) the quasi-static satellite base station of stratosphere is made of stratosphere floating system, communication payload system and operation control system, it is small with ground relative motion, it can be deployed in the region overhead of satellite-signal enhancing covering demand, the transparent forwarding stablized when providing long for satellite all types of user or processing forward communication service on demand；(2) the quasi-static satellite base station of stratosphere distributes the communication resource according to user type and type of service, and communication, which provides, between the user under current base station overlay area transmits service in base station；Between transmitting service the overseas communication in base station overlay area provides base station, by base station by signal relay transmission to satellite, and follow-up communications are completed by satellite.Space and cost advantage of the present invention using the quasi-static satellite base station of stratosphere, can provide convenient, efficient coverage enhancement ability for satellite communication.
Description
Technical field
The present invention relates to the covering of satellite communication field and capacity enhancement technologies, are especially a kind of quiet using stratosphere standard
State satellite base station come enhance conventional satellite communication covering and power system capacity new method.
Background technology
Satellite communication has application flexibly, wide coverage, message capacity is big, passes due to not limited by geographical conditions
Transmission quality is good, networking facilitates rapid, can realize many merits such as global seamless link, it is considered to be establish global personal communication
Essential important means.With being continuously increased for satellite communications services demand, especially using data as the more matchmakers in the broadband of core
Body business high speed development proposes satellite system on the demand of high coverage rate, large capacity and higher QoS guarantee ability, satellite
Partial mulching masking serious become increasingly conspicuous with message capacity deficiency problem.How based on existing satellite platform raising satellite link
Covering and the capacity of satellite communication system set about a little as the important of lifting system ability.
In terms of enhancing link covering, there are two types of traditional method is important：When in ground installation fixed relay base station, two
It is using carrying out communication for coordination between multi-satellite or user.In the method that relay base station is installed on ground, solves local link and cover
Lid problem, but often clashed with GCS Ground Communication System in terms of frequency selection and addressing, cost is very high, realizes also inadequate
Flexibly.Using intersatellite communication for coordination is carried out between multi-satellite or user, there is also many deficiencies, such as load and ground on star
The processing capacity and power of face terminal are all very limited, and collaboration can bring a large amount of resource overhead, communication efficiency relatively low.
In terms of increasing satellite system capacity, traditional method is mainly to improve the signal handling capacity of satellite borne equipment and carry
High link bandwidth.Greatly improved although the ability of satellite load had than in the past now, due to the general service life of satellite compared with
Long (10 years or so), even if ground can not be able to catch up with using state-of-the-art chip and signal handling equipment at that time in design
The rapid development of new technology and sharply increasing for user demand.It is (initial with the continuous improvement of satellite communication Frequency Band Selection
UHF, L, S frequency range are to optical frequencies even higher Ku, Ka now), the capacity of system increases really, but continues reliance on raising
Frequency brings problems to increase the method for power system capacity, such as high frequency band signal Atmospheric attenuation and barrier masking are sternly
Load can not handle huge information flow-rate etc. on weight, terminal antenna tracking complexity and star.
Enhance the coverage area of satellite communication system in the quasi-static satellite base station (hereinafter referred base station) of stratosphere placement,
The signal transmission quality of raising system further carries out processing forward to information by base station or establishes a plurality of user by base station
Link can increase substantially user capacity and the QoS experience of communication system.Mission requirements are enable to respond quickly, are flexibly sent out
Penetrate networking.
Invention content
Present invention solves the technical problem that：In view of the shortcomings of the prior art, providing a kind of based on the quasi-static satellite base of stratosphere
The system transmission enhancing theory stood, realizes satellite communication system covering and capacity enhancing.
The method of the present invention is as follows：
A1, ground fortune control central station dispose stratosphere according to the network planning or emergency communication demand in specified region overhead
Quasi-static satellite base station；
The quasi-static satellite base station of A2, stratosphere takes over satellite service in specified region overhead, is currently directly taken by satellite
The business of business maintains state constant, and the business application of new user is accepted by base station, and provides access service by base station；
A3, base station are that the user to network distributes the address of 4 bytes, and wherein first byte is expressed as current base station and provides service
Satellite number, the 2nd byte representation current base station number, the 3rd, the 4th byte representation Customs Assigned Number；
When A4, user have new communication requirement, the transmission application of 5 bytes is sent on common signaling channel by user,
Wherein preceding 5 bits of first byte indicate that type of service, rear 3 bits indicate priority, the 2-5 byte representation purpose user
Address；
After A5, base station receive the business application of user, distributed according to type of service, priority and target user address logical
Believe resource；
A6, user send signal on specified channel according to communication resource allocation scheme to base station, complete to believe by base station
Number subsequent transmission.
Preferably, the quasi-static satellite base station of the stratosphere can dispose one or more according to demand.Every base station tool
There is certain dynamical system, flexible layout can be carried out according to demand, and maintain position opposing stationary in working condition.
Preferably, its communication payload of the quasi-static satellite base station of the stratosphere includes to star antenna and radio-frequency apparatus, right
Ground antenna and radio-frequency apparatus, interlinkage transponder, processing transponder and routing forwarding equipment.
Preferably, the quasi-static satellite base station of the stratosphere has caching acceleration function, to high-speed multimedia service and greatly
Data collection service has cache capability.
Preferably, described that Ka, Ku or C frequency range are worked in star antenna and radio-frequency apparatus.
Preferably, the antenna over the ground and radio-frequency apparatus work in Ka, Ku, C, S or L frequency range.
Preferably, the interlinkage transponder can complete signal change of the base station between star, base station over the ground different communication frequency range
Frequency transparent transmission.
Preferably, it is different logical over the ground to star, base station can to complete base station for the processing transponder combination routing forwarding equipment
Believe the signal processing transmission between frequency range.
Preferably, the signaling format between the base station and user can be based on Land-Mobile-Network protocol architecture or be based on
Satellite specific protocols system.
Preferably, the communication resource is carried out according to type of service, the distribution friendship when business is high bandwidth requirements type
Chain transponder resource；Processing transponder resource is distributed when business is non-high bandwidth requirements type.
Preferably, the communication resource belongs to according to communication user both sides' logic and carries out, and base station can be used as relaying and letter
Cease two kinds of roles of processor.When user both sides can be its allocation processing transponder resource in same base station beam overlay area；
Base station transponder resource can be distributed when communication user both sides are in same satellite beams overlay area；When communication user, both sides exist
Base station transponder resource can be distributed when in the different satellite beams overlay areas with inter-satellite link；When communication objective user is on ground
Interlinkage transponder resource can be distributed when torus network.
Preferably, the communication resource is carried out according to priority, is preferentially distributed when business is high real-time requirement type
Transponder resource, and can occupy low priority user resource in resource anxiety.
Preferably, base station can be used for being masked region overlay enhancing, system coverage area increase capacity, can also be in original
Satellite system uncovered area increases covering and the combination of three.
Preferably, pooling of resources scheduling may be used in base station or primary resource dispatches two kinds of management modes.Centralized dispatching is
Refer to the ground centers Yun Kong and establishes resource service database, unified satellite resource, base station resource and user's registration information.When base station connects
When receiving new service request, base station needs earthward to transport control center requests approval.Primary resource scheduling, which refers to base station, to be had certainly
The right of main distribution resource carries out resource fast dispatch after receiving user service request according to local resource service database
And earthward registration is reported at fortune control center.Pooling of resources scheduling advantage is that system logic relationship is simple, easy to maintain, safety
Good, disadvantage is inefficiency, strong to the ground centers Yun Kong dependence.Primary resource scheduling advantage is system efficiency of transmission
Height, the disadvantage is that high to base station processing Capability Requirement, system is easy to be attacked by disabled user.
The present invention has the following advantages that compared with the existing technology：
1, base station can not only be used for the information processing person that user also can be used as the relaying person of satellite user service.According to user
The logic of destination address belongs to, to provide different services respectively.Role as relaying improves the office of satellite communication system
Portion's covering quality and area coverage, the role as information processing person improve the user capacity of communication system and the QoS of user
Experience.Therefore, the information transmission of satellite communication system is enhanced on the whole.
2, it suggests plans with good realizability.Compared to ground base station and satellite coordination technique, this programme is not required to
Valuable frequency resource and location resource are fought for ground based mobile subscriber, technology also cooperates with mature and reliable than satellite.
3, it suggests plans with good cost advantage and flexible networking ability.Compared to transmitting satellite, stratosphere standard is quiet
State satellite base station position is low (10~50km), well below the height (36000km) of geostationary satellite, commercialization transmitting mark
Standard can meet needs.Transmitting is flexible, when there is task to need, can dispose networking rapidly.
Description of the drawings
Fig. 1 is present system architectural framework schematic diagram；
Fig. 2 is coverage enhancement schematic diagram of the embodiment of the present invention；
Fig. 3 is 1 schematic diagram of scene of the embodiment of the present invention；
Fig. 4 is 2 schematic diagram of scene of the embodiment of the present invention；
Fig. 5 is 3 schematic diagram of scene of the embodiment of the present invention.
Specific implementation mode
It is right below in conjunction with drawings and examples in order to make technical scheme of the present invention, objects and advantages be more clearly understood
The present invention further illustrates.The present invention provides the enhancing transmission method based on the quasi-static satellite base station of stratosphere, system of systems frame
Structure schematic diagram is as shown in Figure 1, specific implementation mode is as follows：
A1, ground fortune control central station dispose stratosphere according to the network planning or emergency communication demand in specified region overhead
Quasi-static satellite base station；
The quasi-static satellite base station of A2, stratosphere takes over satellite service in specified region overhead, is currently directly taken by satellite
The business of business maintains state constant, and the business application of new user is accepted by base station, and provides access service by base station；
A3, base station are that the user to network distributes the address of 4 bytes, and wherein first byte is expressed as current base station and provides service
Satellite number, the 2nd byte representation current base station number, the 3rd, the 4th byte representation Customs Assigned Number；
When A4, user have new communication requirement, the transmission application of 5 bytes is sent on common signaling channel by user,
Wherein preceding 5 bits of first byte indicate that type of service, rear 3 bits indicate priority, the 2-5 byte representation purpose user
Address；
After A5, base station receive the business application of user, distributed according to type of service, priority and target user address logical
Believe resource；
A6, user send signal on specified channel according to communication resource allocation scheme to base station, complete to believe by base station
Number subsequent transmission.
Embodiment：Fig. 2 gives an example of the present invention, including two satellites, the ground centers Yun Kong, two bases
It stands, the barriers such as several users and spissatus layer, building jungle.Its Satellite 1 and satellite 2 are linked by inter-satellite link.Base
It stands 1 relaying as satellite 1, relaying of the base station 2 as satellite 2.The wave beam of user 1, user 2, user 6 and user 8 in satellite 1
In coverage area, wherein user 2, user 8 are covered by cloud layer, and user 1, user 2 are low rate speech user, and user 6 is high speed
Media user, user 8 are Remote sensing data reception user.User 3, user 4 and user 7 in the beam coverage of satellite 2,
Wherein user 7 is covered by building and jungle, and user 3, user 4 are low rate speech user, and user 7 uses for high-speed multimedia
Family, satellite 2 are equipped with earth observation load, return remotely-sensed data as needed.User 5 is not in the beam coverage of satellite
It is interior, but in the coverage area of base station 2, user 5 is low rate speech user.There is height at the ground centers Yun Kong with satellite 1 and satellite 2
Fast satellite-ground link has high speed fibre to connect with ground network by gateway.Base station 1 and base station 2 can pass through satellite relay access
The face centers Yun Kong receive ground fortune control centre management.
In this example, initialize network in resource include system in user logic ownership, base station service object
With link state etc..Specify the operating mode of system：(the present embodiment will all consider simultaneously for pooling of resources scheduling and primary resource scheduling
Illustrate).The initialization result of the present embodiment is as shown in table 1 below：
Table 1
| User | Logic belongs to | Link state | Type of service | Real-time | Purpose user/information source |
| User 1 | 1 wave beam of satellite | Normally | Voice | It is high | User 5 |
| User 2 | 1 wave beam of satellite | It blocks | Voice | It is high | Ground network users |
| User 3 | 2 wave beam of satellite | It blocks | Voice | It is high | User 3 |
| User 4 | 2 wave beam of satellite | Normally | Voice | It is high | User 4 |
| User 5 | No satellite covering | Without link | Voice | It is high | User 1 |
| User 6 | 1 wave beam of satellite | Normally | Data (picture, webpage) | It is low | Terrestrial network service provider |
| User 7 | 2 wave beam of satellite | It blocks | Data (picture, webpage) | It is low | Terrestrial network service provider |
| User 8 | 1 wave beam of satellite | It blocks | Remotely-sensed data | It is low | Satellite 2 |
After the completion of initialization, if using pooling of resources scheduling scheme, base station will summarize the information being collected into, by defending
Star is sent to the ground centers Yun Kong, and control centre punch one is transported into address distribution and resource allocation by ground.If using primary resource
Scheduling scheme, base station can independently give networking user distributively location.Address is made of 4 bytes, and wherein first byte is expressed as currently
Base station provides the satellite number of service, the 2nd byte representation current base station number, the 3rd, the 4th byte representation Customs Assigned Number.Tool
Body is as shown in table 2：
Table 2
| User | Satellite number | Base station number | Customs Assigned Number | Station address |
| User 1 | 0001 0001 | 0001 0001 | 0000 0000 0000 0001 | 17.17.0.1 |
| User 2 | 0001 0001 | 0001 0001 | 0000 0000 0000 0010 | 17.17.0.2 |
| User 3 | 0001 0002 | 0001 0002 | 0000 0000 0000 0011 | 18.18.0.3 |
| User 4 | 0001 0002 | 0001 0002 | 0000 0000 0000 0100 | 18.18.0.4 |
| User 5 | 0001 1111 | 0001 0002 | 0000 0000 0000 0101 | 31.18.0.5 |
| User 6 | 0001 0001 | 0001 0001 | 0000 0001 0000 0001 | 17.17.1.1 |
| User 7 | 0001 0002 | 0001 0002 | 0000 0001 0000 0010 | 18.18.1.2 |
| User 8 | 0001 0001 | 0001 0001 | 0000 0000 0000 1000 | 17.17.0.8 |
When user needs to establish communication, user needs to send the transmission application of 5 bytes on common signaling, wherein first
Preceding 5 bits of byte indicate that type of service, rear 3 bits indicate priority, the 2-5 byte representation purpose station address；
Scene 1：
After base station receives the application of user, it can be distributed according to the logical address, type of service and priority of purpose user
The communication resource.It, be with 5 initiating speech conversation of user for user 1.But under original satellite system, user 5 is not defending
In the coverage area of star communication system, it can not be communicated.Base station 2 will be used as relaying, judge that the logic of user both sides is attributed to
Inside satellite communication system, corresponding processing transponder resource is distributed for it so that communication can carry out, and embody expansion satellite
The advantage of overlay area, specifically as shown in Figure 3.
For user 2, to be communicated with other terrestrial users in non-satellite communication system.Link is by spissatus
Layer blocks.Base station 1 judges its purpose user for ground network users, and base station will be used as relaying, and corresponding interlinkage forwarding is provided for it
Device resource.The advantage of local coverage enhancement is embodied, specifically as shown in Figure 3.
Scene 2：
For user 3, voice communication is established with user 4, user 3 and the satellite link of user 4 are built
Object and jungle block, and can provide relay services by base station 2 in this case.Base station 2 judges user 3 and user by logical address
4 all in its overlay area.Base station will provide route processing transponder resource, and be not take up on-board processing resource and link money
Source improves satellite communication system capacity, less communication delay indirectly.Local coverage enhancement is embodied simultaneously, power system capacity increases
The advantage that strong and high QoS is experienced, specifically as shown in Figure 4.
For user 8, the remotely-sensed data acquired by 2 earth observation load of satellite is received, under normal circumstances,
Satellite 1 is chained up user's 8 and satellite 2 by inter-satellite link as relaying.But in this scene, thick cloud cover satellite
1 with the satellite-ground link of user 8.At this point, base station 1 as relaying, judges 8 type of service of user for high-speed demand user, it is it
Distribution interlinkage transponder resource.The enhancing covering advantage of base station is embodied, specifically as shown in Figure 4.
Scene 3：
All it is multimedia high speed business for user 6 and user 7.User 6 to satellite 1 and base station 1 simultaneously as it can be seen that
Therefore two user links can be established.While satellite 1 distributes to 6 transponder resource of user, base station 1 is also allocated to 6 turns of user
Device resource is sent out, link rate and the QoS experience of user 6 are greatly improved.The satellite link of user 7 is hidden by building and jungle
Gear needs to relay by base station 2, while base station 2 can be experienced by cache to promote the QoS of user 7.And it is specifically shown in
Shown in Fig. 5.
The present invention is described in detail above in association with attached drawing, but those skilled in the art should be understood that specification
It is for explaining claim, the scope of the present invention is subject to claim, on the basis of the present invention, any
The modifications, equivalent substitutions and improvements done all should be in required protection domain.
Claims (14)
1. a kind of enhancing transmission method based on the quasi-static satellite base station of stratosphere, it is characterised in that including step：
A1, ground fortune control central station are according to the network planning or emergency communication demand, and in specified region overhead, deployment stratosphere standard is quiet
State satellite base station；
The quasi-static satellite base station of A2, stratosphere takes over satellite service in specified region overhead, has currently directly been serviced by satellite
Business maintains state constant, and the business application of new user is accepted by base station, and provides access service by base station；
A3, when using centralized dispatching scheme, ground transports to control address is distributed for user；When use Autonomous Scheduling scheme, base station be into
The user of net distributes the address of 4 bytes, and the first byte of address is expressed as the satellite number that current base station provides service, the 2nd
Byte representation current base station is numbered, the 3rd, the 4th byte representation Customs Assigned Number；
When A4, user have new communication requirement, the transmission application of 5 bytes is sent on common signaling channel by user, wherein
Preceding 5 bits of first byte indicate type of service, and rear 3 bits indicate priority, the 2-5 byte representation purpose user
Location；
After A5, base station receive the business application of user, the role of base station is judged according to the logic of user and destination address ownership,
Such as it is information processing person, then the communication resource is distributed in base station according to type of service, priority and target user address；Such as it is relaying,
Then base station is that user distributes interlinkage transponder resource；
A6, user send signal on specified channel according to communication resource allocation scheme to base station, and signal is completed by base station
Subsequent transmission.
2. according to the method described in claim 1, the quasi-static satellite base station of the stratosphere can dispose according to demand one or
More, every base station has certain dynamical system, can carry out flexible layout according to demand, and maintain in working condition
Position is opposing stationary.
3. according to the method described in claim 1, it is characterized in that, its communication payload of the quasi-static satellite base station of the stratosphere
Including being set to star antenna and radio-frequency apparatus, over the ground antenna and radio-frequency apparatus, interlinkage transponder, processing transponder and routing forwarding
It is standby.
4. according to the method described in claim 1, it is characterized in that, the quasi-static satellite base station of the stratosphere has caching to accelerate
Function has cache capability to high-speed multimedia service and big data capturing service.
5. according to the method described in claim 3, it is characterized in that, described work in Ka, Ku to star antenna and radio-frequency apparatus
Or C frequency ranges.
6. according to the method described in claim 3, it is characterized in that, the antenna over the ground and radio-frequency apparatus work in Ka, Ku,
C, S or L frequency ranges.
7. according to the method described in claim 3, it is characterized in that, the interlinkage transponder can complete base station to star, base station
Signal frequency conversion transparent transmission between different communication frequency range over the ground.
8. according to the method described in claim 3, it is characterized in that, the processing transponder combination routing forwarding equipment can be complete
At signal processing transmission of the base station between star, base station over the ground different communication frequency range.
9. according to the method described in claim 1, it is characterized in that, the signaling format between the base station and user can be based on
Land-Mobile-Network protocol architecture is based on satellite specific protocols system.
10. according to the method described in claim 1, it is characterized in that, the communication resource is carried out according to type of service, work as industry
Distribution interlinkage transponder resource when business is high bandwidth requirements type；Processing forward is distributed when business is non-high bandwidth requirements type
Device resource.
11. according to the method described in claim 1, it is characterized in that, the communication resource is according to communication user both sides' logic
Ownership carries out, and base station can be used as two kinds of roles of relaying and information processing person, when user both sides are in same base station beam overlay area
Interior is its allocation processing transponder resource；Base station can be distributed when communication user both sides are in same satellite beams overlay area
Transponder resource；Base station can be distributed when communication user both sides are in the different satellite beams overlay areas with inter-satellite link to turn
Send out device resource；Interlinkage transponder resource can be distributed when communication objective user is in ground network.
12. according to the method described in claim 1, it is characterized in that, the communication resource is carried out according to priority, work as business
Preferentially to distribute transponder resource when high real-time requirement type, and low priority user resource can be occupied in resource anxiety.
13. according to the method described in claim 1, region overlay enhancing, system it is characterized in that, base station can be used for being masked
Overlay area increases capacity, can also increase covering and the combination of three in protosatellite system uncovered area.
14. according to the method described in claim 1, it is characterized in that, pooling of resources scheduling or primary resource may be used in base station
Two kinds of management modes are dispatched, centralized dispatching refers to that resource service database, unified satellite resource, base station are established in the ground centers Yun Kong
Resource and user's registration information, when base station receives new service request, base station needs earthward to transport control center requests approval,
Primary resource scheduling refers to the right that base station has autonomous distribution resource, after base station receives user service request, according to local
Resource service database carries out resource fast dispatch and earthward registration is reported at fortune control center.
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| WO2017132995A1 (en) | 2016-02-05 | 2017-08-10 | 广东欧珀移动通信有限公司 | Service transmission method and device |
| JP2019518363A (en) * | 2016-04-29 | 2019-06-27 | ビーエイチピー ビリトン イノベーション プロプライアタリー リミテッド | Wireless communication system |
| CN107769839A (en) * | 2017-10-12 | 2018-03-06 | 东莞北京航空航天大学研究院 | A kind of stratosphere satellite digital cluster communication covers scheme |
| CN108832985B (en) * | 2018-05-02 | 2020-10-16 | 中国人民解放军32039部队 | Method for mobile IP communication system for relay satellite heaven-earth integrated network |
| CN111327354B (en) | 2018-12-14 | 2022-01-11 | 华为技术有限公司 | Satellite network communication method, related device and system |
| CN111313955B (en) * | 2020-02-10 | 2020-09-15 | 军事科学院系统工程研究院网络信息研究所 | Method for acquiring and displaying satellite communication resource state |
| CN114342456B (en) * | 2020-06-28 | 2024-04-09 | 北京小米移动软件有限公司 | Measurement method, base station, multimode terminal, communication device, and storage medium |
| CN112564770A (en) * | 2020-12-01 | 2021-03-26 | 天地信息网络研究院(安徽)有限公司 | Multi-satellite co-location satellite communication system |
| CN113541774B (en) * | 2021-09-17 | 2021-12-24 | 椭圆时空(北京)科技有限公司 | Remote-control integrated satellite system |
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