CN108882374B - Ka frequency band multi-address measurement and control resource scheduling method - Google Patents
Ka frequency band multi-address measurement and control resource scheduling method Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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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
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a Ka frequency band multiple access measurement and control resource scheduling method, and aims to provide a hierarchical effective access means for users with different requirements. The invention is realized by the following technical scheme: the satellite-borne Ka frequency band resource is divided into multi-beam resources, each beam is divided into non-overlapping sub-frequency band resources, and each sub-frequency band is distinguished by using different spreading codes, so that three-dimensional setting of system resources is realized; dividing users with access requirements into four types of pre-allocated broadband, pre-allocated narrowband, random access broadband and random access narrowband according to different priorities and rates; then according to the user access request, judging whether the system has idle resources, if not, refusing the access, if yes, judging whether the system is pre-distributed user access or random access, if yes, then judging whether the system is broadband access, if yes, carrying out broadband access, otherwise, carrying out pre-distributed narrow band access; if yes, judging whether idle wave beam resources exist, if yes, distributing wave beam resources, and if not, refusing to access.
Description
Technical Field
The invention relates to a relay satellite system in the field of space-based measurement and control, in particular to a flexible and reliable Ka frequency band multiple access measurement and control resource scheduling method which is suitable for a space-based Ka frequency band multiple access measurement and control system.
Background
The Ka band is a part of the microwave band of the electromagnetic spectrum, the frequency range of which is 26.5-40GHz. Ka represents the direct top of K (K-above), in other words, the band is directly above the K band. The Ka frequency band satellite communication system can provide a brand-new means for new services such as high-speed satellite communication, gigabit broadband digital transmission, high Definition Television (HDTV), satellite news collection (SNG), VSAT service, direct to the home (DTH) service, personal satellite communication and the like. The Ka frequency band has the defects of large rain attenuation and high requirements on devices and processes. The Ka band, also known as the 30/20GHz band, is commonly used for satellite communications. A Ka frequency band multiple access measurement and control communication system (KMA) is a relay satellite-based multifunctional measurement and control communication system which comprises a ground section, a space section and a user section and finally realizes multiple functions of measurement and control, data transmission and the like through work of beam resource scheduling, link establishment and the like. The KMA generates a plurality of controllable Ka beams by using a Ka frequency band phased array antenna and related equipment carried on a relay satellite, realizes core functions of simultaneous measurement and control, high-speed data relay, measurement and control communication integration and the like of a plurality of target aircrafts by a pre-distribution access and an opportunistic access mode of various user accesses and multiple access means such as space division multiple access, code division multiple access and frequency division multiple access, and has expansion functions of rapid return of aircraft data, data interaction between aircrafts and the like by using modes such as beam hinges and the like. The existing space-based Ka measurement and control resource scheduling can only use a frequency division multiplexing method to reserve data relay service for a few targets, but cannot effectively distinguish different broadband and narrowband user requirements, so that the utilization rate of system resources is very low, and a multi-frequency-time division multiple access (MF-TDMA) technology generally adopted in the existing satellite communication system cannot be applied due to the fact that time synchronization between a relay satellite and a user satellite is very difficult. The existing space-based system (including relay satellite and communication satellite) multiple access resource scheduling method is difficult to apply. In order to reduce the complexity of the calculation, the prior art proposes a joint allocation algorithm using a step-by-step optimization algorithm and a conventional fixed allocation algorithm. Based on the two-step optimization algorithm, the method adopts the sub-carrier allocation and the power of each carrier is determined, and the two different allocation algorithms are used for performance comparison. And a fixed allocation algorithm is adopted to averagely allocate the Q carrier bandwidths to each user by assuming that the total amount of the communication demand of the whole system is constant and not considering the actual communication demand of each user. On one hand, when a few users send information, resources allocated to the users are greatly wasted, and other users cannot use the resources, and on the other hand, when a large number of users send information, the resources allocated to the system frequency efficiency are insufficient to meet the communication requirements of the users along with the increase of the user beam number K. The comparison result of the system spectrum efficiency and the system communication requirement satisfaction beta of the two algorithms under the multi-beam satellite communication model shows that the throughput of the system is improved with the increase of the user beam number K, but the power consumption and the complexity of the system are correspondingly improved, and the calculation complexity is increased. The aerospace measurement and control resource scheduling problem is a multi-resource scheduling problem with time window constraint, and at present, the research on a solving method of the problem comprises the establishment of a scheduling model and the design of an algorithm. Therefore, when allocating resources of an actual system, a balance point needs to be found between the system throughput and the computational complexity. Because the Ka frequency band multi-beam satellite communication system resource dynamic allocation optimization problem is a non-convex joint optimization problem, a joint optimal solution is difficult to obtain. Therefore, a new fast and practical space-based Ka frequency band multiple access measurement and control resource scheduling technology needs to be designed.
Disclosure of Invention
The invention aims to provide a flexible and reliable multi-access measurement and control resource scheduling method aiming at the characteristics and application requirements of a space-based Ka frequency band multi-access measurement and control communication system, and provides a graded effective access means for users with different requirements.
The above object of the present invention can be achieved by the following measures: a Ka frequency band multiple access measurement and control resource scheduling method is characterized by comprising the following steps: dividing satellite-borne Ka frequency band resources into multi-beam resources, dividing each beam into non-overlapping sub-band resources, and distinguishing each sub-band by using different spreading codes so as to realize three-dimensional setting of Ka frequency band multiple-access measurement and control communication system resources; then dividing users with access requirements into four types of pre-allocated broadband, pre-allocated narrowband, random access broadband and random access narrowband according to different priorities and rates; in the multiple access measurement and control resource scheduling, firstly, judging whether a Ka frequency band multiple access measurement and control communication system has idle resources according to a user access request, if not, refusing the access, if so, judging whether the user access is pre-allocated, if so, continuing the pre-allocation access, and then judging whether the broadband access is performed, otherwise, performing the pre-allocation narrowband access; if yes, judging whether idle beam resources exist, if yes, allocating the beam resources, and if not, refusing access; if the pre-allocation can not be accessed, accessing to random access, judging whether the broadband is accessed, if not, performing narrow-band random access, if so, judging whether idle beam resources exist, if so, allocating the beam resources, otherwise, refusing the access.
Compared with the prior space-based Ka frequency band measurement and control resource scheduling method, the method has the following beneficial effects:
according to the invention, satellite-borne Ka frequency band resources are divided into multi-beam resources, each beam is divided into non-overlapping sub-frequency band resources, and each sub-frequency band is distinguished by using different spreading codes, so that three-dimensional setting of Ka frequency band multiple-access measurement and control communication system resources is realized, ka frequency band multi-beam resources can be effectively utilized, and efficient multi-user access service is provided. The access means which provides grading effective for users with different requirements is flexible and reliable. The Ka-band multi-access measurement and control communication system resource can be better dynamically allocated according to the requirement of the user, the fairness and the efficiency of the Ka-band multi-access measurement and control communication system are improved, and the Ka-band multi-access measurement and control communication system can meet more user requirements under the condition that the resources of the antenna and the repeater are limited. Compared with the traditional allocation algorithm, the resource utilization rate and the user capacity of the Ka frequency band multiple access measurement and control communication system are obviously improved.
The invention carries out flexible resource adaptation aiming at the multi-user access requirements of different priorities and different rates, divides system resources into subclasses of wave beams, frequency bands, code words and the like, and simultaneously divides the system resources into four types of pre-distribution broad bands, pre-distribution narrow bands, random access broad bands and random access narrow bands according to the user priorities and rates with the access requirements; the resources are divided from 3 dimensions of beam resources, frequency band resources and code word resources, idle beam resources are used for access, and the selection of frequency bands or code words is carried out on narrow-band access according to pre-allocation or random access, so that the high-efficiency utilization of Ka frequency band multiple-access measurement and control resources is realized. Simulation results show that compared with the traditional allocation algorithm, the measurement and control communication satisfaction degree and the frequency spectrum efficiency value of the new algorithm are improved, and a certain theoretical basis is provided for research on relay satellite communication system resource allocation.
The method is suitable for space-based resource scheduling of Ka frequency band multiple access measurement and control communication in the relay satellite system.
Drawings
The invention is further illustrated below with reference to the figures and the examples.
Fig. 1 is a Ka band multiple access measurement and control resource scheduling user access flow chart of the present invention.
Fig. 2 is a flow chart of the narrowband access of the user of the Ka-band multiple access measurement and control communication system.
Fig. 3 is a system resource table of the Ka-band multiple access measurement and control communication system.
Detailed Description
See fig. 1. According to the invention, a Ka frequency band multiple access measurement and control resource scheduling method is characterized by comprising the following steps: dividing satellite-borne Ka frequency band resources into multi-beam resources, dividing each beam into non-overlapping sub-band resources, and distinguishing each sub-band by using different spreading codes so as to realize three-dimensional setting of Ka frequency band multiple-access measurement and control communication system resources; then dividing users with access requirements into four types of pre-allocated broadband, pre-allocated narrowband, random access broadband and random access narrowband according to different priorities and rates; in Ka frequency band multiple access measurement and control resource scheduling, firstly, judging whether a Ka frequency band multiple access measurement and control communication system has idle resources according to a user access request, if not, refusing access, if so, judging whether to pre-allocate user access, if so, continuing pre-allocation access, and then judging whether to perform broadband access, otherwise, performing pre-allocation narrowband access; if yes, judging whether idle beam resources exist, if yes, allocating the beam resources, and if not, refusing access; if the pre-allocation can not be accessed, accessing to random access, judging whether the broadband is accessed, if not, performing narrow-band random access, if so, judging whether idle beam resources exist, if so, allocating the beam resources, otherwise, refusing the access.
For narrow-band access, the selection of frequency bands or code words is carried out according to pre-allocation or random access, and the resources are divided from 3 dimensions of beam resources, frequency band resources and code word resources.
The access users of the Ka frequency band multiple access measurement and control communication system are divided into: high priority pre-allocated broadband access requiring exclusive ownership of 1 beam resource, high priority pre-allocated narrowband access that can share 1 beam resource with other users, low priority opportunistic broadband access requiring exclusive ownership of 1 beam resource, and low priority opportunistic narrowband access that can share 1 beam resource with other users. In the preallocation narrow-band access, the Ka frequency band multiple access measurement and control system judges whether idle beam resources exist or not, if yes, the beam resources are allocated to a user for access, if not, whether resources meeting the coverage in service time exist in used beams or not is analyzed, if yes, the idle beam resources are allocated, and if not, the access is refused.
In the random narrow-band access, whether resources meeting the coverage in service time exist in beams used by a system is analyzed, if yes, beam idle resources are allocated to a user for access, if not, whether idle beams exist is judged, if yes, the idle beam resources are allocated, and if not, the access is refused.
The Ka frequency band multiple access measurement and control communication system user access process comprises the following steps:
1. the Ka frequency band multiple access measurement and control resource scheduling system KMA allocates user access resources according to the capacity of idle resources of the system aiming at the access requirements of different users. A user initiates an access request, when the user needs to access, a Ka frequency band multiple access measurement and control resource scheduling system firstly judges whether idle resources exist or not, including whether a wave beam frequency band and a code word are available for allocation or not. If no free resource exists, the user is refused to access, if yes, the access process is continued;
2. judging whether the access is pre-allocated, if so, turning to the step 3, otherwise, turning to the step 5;
3. judging whether the broadband access is pre-allocated, if so, turning to the step 4, otherwise, entering a pre-allocated narrow band access flow;
4. judging whether the Ka frequency band multiple access measurement and control resource scheduling system has idle beam resources, if so, allowing access and distributing the beam resources, otherwise, refusing access;
5. judging whether random broadband access is performed, if so, turning to the step 6, otherwise, entering a random narrowband access flow;
6. and judging whether the Ka frequency band multiple access measurement and control communication system has idle beam resources, if so, allowing access and distributing the beam resources, and otherwise, refusing access.
See fig. 2. In the narrow-band access process, the difference between the pre-allocation access and the random access is that when an idle beam exists, the pre-allocation access preferentially uses the idle beam, and the random access firstly checks whether the frequency band or code word which can be accessed exists in the used beam, and if so, preferentially uses the resources. In the narrow-band access process of a Ka-band multi-access measurement and control system user, the Ka-band multi-access measurement and control resource scheduling system judges whether the access mode of the user is pre-allocated for access, if so, the system enters the pre-allocated narrow-band access process, and if not, the system enters the random narrow-band access process.
In a user narrow-band access process of a Ka-band multi-access measurement and control system, the Ka-band multi-access measurement and control resource scheduling system judges whether the access mode of a user is pre-distributed for access, if so, the pre-distributed narrow-band access process is performed, and if not, the random narrow-band access process is performed.
In the pre-allocated narrow-band access, whether the Ka frequency band multiple access measurement and control system has idle beam resources is judged, if yes, the beam resources are allocated to a user for access, if not, whether resources meeting the coverage within the service time exist in the used beams is analyzed, if yes, the idle beam resources are allocated, and if not, the access is refused.
In the random access, whether resources meeting the coverage in service time exist in used wave beams is analyzed, if yes, wave beam idle resources are allocated to a user for access, if not, whether idle wave beams exist is judged, if yes, the idle wave beam resources are allocated, and if not, the access is refused.
The pre-allocation narrowband access flow is as follows:
1. judging whether the Ka frequency band multiple access measurement and control communication system has idle wave beams, if so, allowing access and allocating idle wave beam resources, otherwise, turning to the step 2;
2. and judging whether the used beam has resources meeting the coverage in the service time, if so, allocating idle beam resources, and otherwise, refusing access.
The random narrowband access process is as follows:
1. judging whether the used beam has the resource meeting the coverage in the service time, if so, allocating beam idle resource to the user for access, otherwise, turning to the step 2;
2. and judging whether idle wave beams exist or not, if so, allocating idle wave beam resources, and otherwise, rejecting access.
See fig. 3. The access users of the Ka band multiple access measurement and control communication system can be classified into the following 4 types: high-priority pre-allocation broadband access requiring exclusive ownership of 1 beam resource; high priority pre-allocated narrowband access that can share 1 beam resource with other users; the low priority random access broadband access which needs to monopolize 1 beam resource; low priority opportunistic access narrowband access that can share 1 beam resource with other users.
The foregoing is a description of the invention and embodiments thereof provided to persons skilled in the art of the invention and is to be considered as illustrative and not restrictive. An engineer may specifically operate according to the idea of the claims and may make various changes in form and detail without departing from the spirit and scope of the invention defined by the appended claims. All of which are considered to be within the scope of the present invention.
Claims (8)
1. A Ka frequency band multiple access measurement and control resource scheduling method is characterized by comprising the following steps: dividing satellite-borne Ka frequency band resources into multi-beam resources, dividing each beam into non-overlapping sub-band resources, and distinguishing each sub-band by using different spreading codes so as to realize three-dimensional setting of the Ka frequency band multiple-access measurement and control communication system resources; then dividing users with access requirements into four types of pre-allocated broadband, pre-allocated narrowband, random access broadband and random access narrowband according to different priorities and rates; in the multiple access measurement and control resource scheduling, firstly, judging whether a Ka frequency band multiple access measurement and control communication system has idle resources according to a user access request, if not, refusing the access, if so, judging whether the user access is pre-allocated, if so, continuing the pre-allocation access, and then judging whether the broadband access is performed, otherwise, performing the pre-allocation narrowband access; if yes, judging whether idle beam resources exist, if yes, distributing the beam resources, and if not, refusing to access; if the pre-allocation can not be accessed, accessing random access, judging whether broadband access is available or not, if not, performing narrowband random access, if so, judging whether idle beam resources exist or not, if so, allocating beam resources, and if not, rejecting access; for narrow-band access, the selection of frequency bands or code words is carried out according to pre-allocation or random access, and the resources are divided from 3 dimensions of beam resources, frequency band resources and code word resources.
2. The method of claim 1, wherein the method comprises: the access users of the Ka frequency band multiple access measurement and control communication system are divided into: high priority pre-allocated broadband access requiring exclusive ownership of 1 beam resource, high priority pre-allocated narrowband access that can share 1 beam resource with other users, low priority opportunistic broadband access requiring exclusive ownership of 1 beam resource, and low priority opportunistic narrowband access that can share 1 beam resource with other users.
3. The method for Ka-band multiple access measurement and control resource scheduling according to claim 1, wherein: the Ka frequency band multiple access measurement and control resource scheduling system KMA allocates user access resources according to the capacity of idle resources of the system aiming at the access requirements of different users.
4. The method for Ka-band multiple access measurement and control resource scheduling according to claim 1, wherein: a user initiates an access request, a Ka frequency band multiple access measurement and control resource scheduling system firstly judges whether idle resources, including beams, frequency bands and code words, exist for allocation, and if not, the user is refused to access.
5. The method for Ka-band multiple access measurement and control resource scheduling according to claim 1, wherein: the difference between the pre-allocation access and the random access is that when an idle beam exists, the pre-allocation access preferentially uses the idle beam, and the random access firstly judges whether the used beam still has accessible frequency bands or code words, and if so, preferentially uses the resources.
6. The method for Ka-band multiple access measurement and control resource scheduling according to claim 1, wherein: in the narrow-band access process of a Ka-band multi-access measurement and control system user, the Ka-band multi-access measurement and control resource scheduling system judges whether the access mode of the user is pre-allocated for access, if so, the system enters the pre-allocated narrow-band access process, and if not, the system enters the random narrow-band access process.
7. The method for Ka-band multiple access measurement and control resource scheduling according to claim 1, wherein: in the preallocation narrow-band access, the Ka frequency band multiple access measurement and control system judges whether idle beam resources exist or not, if yes, the beam resources are allocated to a user for access, if not, whether resources meeting the coverage in service time exist in used beams or not is analyzed, if yes, the idle beam resources are allocated, and if not, the access is refused.
8. The method of claim 1, wherein the method comprises: in the random narrow-band access, whether resources meeting the coverage in service time exist in the used wave beams of the system is analyzed, if yes, wave beam idle resources are allocated to a user for access, if not, whether idle wave beams exist is judged, if yes, idle wave beam resources are allocated, and if not, access is refused.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253964A (en) * | 2015-06-09 | 2016-12-21 | 北京信威通信技术股份有限公司 | Mobile communication system based on Constellation of Low Earth Orbit Satellites network and method |
| CN106851749A (en) * | 2017-04-06 | 2017-06-13 | 上海航天测控通信研究所 | A kind of relay satellite system resource regulating method based on resource reservation |
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| US9369516B2 (en) * | 2009-01-13 | 2016-06-14 | Viasat, Inc. | Deltacasting |
| IL211663A (en) * | 2011-03-10 | 2015-03-31 | Elta Systems Ltd | Apparatus and methods for dynamic spectrum allocation in satellite communications |
| CN103490808B (en) * | 2013-08-12 | 2016-06-22 | 上海卫星工程研究所 | Spaceborne S frequency range trunk subscriber terminal system and application process based on spread spectrum system |
| CN103929824A (en) * | 2014-03-26 | 2014-07-16 | 中国人民解放军总参谋部第六十三研究所 | Wireless network node neutral access dynamic configuration method |
| CN106254003B (en) * | 2015-06-09 | 2019-02-22 | 北京信威通信技术股份有限公司 | Frequency spectrum perception and frequency allocation method and device |
| CN107592662B (en) * | 2016-07-06 | 2019-12-17 | 北京信威通信技术股份有限公司 | Satellite system communication method, device and system |
| CN108011660B (en) * | 2017-11-21 | 2020-12-22 | 湖南瓴星空间信息技术有限公司 | Global real-time Internet of things constellation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253964A (en) * | 2015-06-09 | 2016-12-21 | 北京信威通信技术股份有限公司 | Mobile communication system based on Constellation of Low Earth Orbit Satellites network and method |
| CN106851749A (en) * | 2017-04-06 | 2017-06-13 | 上海航天测控通信研究所 | A kind of relay satellite system resource regulating method based on resource reservation |
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